diff --git a/app.js b/app.js
index 4c27cc73..f5e629f4 100644
--- a/app.js
+++ b/app.js
@@ -122,6 +122,7 @@ function init(mod) {
     mod.add(serveWasm);
     mod.add(serveCode);
     mod.add(fullpath({
+        "/boot"            : redir((pre??"") + "/boot/", 301),
         "/kiri"            : redir((pre??"") + "/kiri/", 301),
         "/mesh"            : redir((pre??"") + "/mesh/", 301),
         "/meta"            : redir((pre??"") + "/meta/", 301),
@@ -147,6 +148,7 @@ function init(mod) {
     mod.static("/mesh/", "web/mesh");
     mod.static("/moto/", "web/moto");
     mod.static("/kiri/", "web/kiri");
+    mod.static("/boot/", "web/boot");
 
     // module loader
     function load_modules(root, force) {
diff --git a/bin/bundle.config.json b/bin/bundle.config.json
new file mode 100644
index 00000000..655fa67e
--- /dev/null
+++ b/bin/bundle.config.json
@@ -0,0 +1,11 @@
+{
+    "outputs": {
+      "bundle": "./web/kiri/bundle.bin"
+    },
+    "inputs": [
+      { "root": "./web", "prefix": "" },
+      { "root": "./src", "prefix": "lib" },
+      { "root": "./src/wasm", "prefix": "wasm" },
+      { "root": "./src/wasm", "prefix": "lib/kiri/wasm" }
+    ]
+}
diff --git a/bin/bundler.mjs b/bin/bundler.mjs
new file mode 100644
index 00000000..21cec2bd
--- /dev/null
+++ b/bin/bundler.mjs
@@ -0,0 +1,106 @@
+import fs from 'fs';
+import path from 'path';
+import uglify from 'uglify-js';
+import { Buffer } from 'buffer';
+
+const cfg = JSON.parse(fs.readFileSync(process.argv[2] || './bundle.config.json', 'utf8'));
+const compress = process.env.UGLIFY ? true : false
+
+// --- recursive directory walker (follows symlinks safely) ---
+function* walk(dir, seen = new Set()) {
+    const real = fs.realpathSync(dir);
+    if (seen.has(real)) {
+        return;
+    }
+    seen.add(real);
+
+    for (const name of fs.readdirSync(dir)) {
+        const p = path.join(dir, name);
+        let st;
+        try { st = fs.statSync(p); } catch { continue; }
+        if (st.isDirectory()) yield* walk(p, seen);
+        else yield p;
+    }
+}
+
+// --- collect all files according to config ---
+let entries = [];
+for (const input of cfg.inputs) {
+    const root = input.root;
+    const prefix = input.prefix || '';
+    for (const file of walk(root)) {
+        const rel = path.relative(root, file).replace(/\\/g, '/');
+        const virt = prefix ? `${prefix}/${rel}` : rel;
+        entries.push({ file, virt });
+    }
+}
+
+// --- build header and data ---
+const dataParts = [];
+const entryMeta = [];
+let offset = 0;
+let cache = new Map();
+
+for (const { file, virt } of entries) {
+    let record = cache.get(file);
+    if (record) {
+        // console.log({ dup: file });
+        entryMeta.push({ ...record, virt });
+    } else {
+        let data = fs.readFileSync(file);
+        if (compress && file.endsWith("js")) {
+            console.log('compress', file);
+            data = uglify.minify(data.toString(), {
+                compress: {
+                    merge_vars: false,
+                    unused: false
+                }
+            });
+            // console.log({ to: typeof(data), data });
+            if (!data.code) {
+                console.log({ skip: file });
+                continue;
+            }
+            data = Buffer.from(data.code);
+        }
+        record = { virt, offset, length: data.length };
+        cache.set(file, record);
+        entryMeta.push(record);
+        dataParts.push(data);
+        offset += data.length;
+    }
+}
+
+// temporary header without offsets to measure total size
+let tempHeaderParts = [];
+for (const { virt, offset, length } of entryMeta) {
+    const name = Buffer.from(virt, 'utf8');
+    const nlen = Buffer.alloc(2); nlen.writeUInt16LE(name.length);
+    const offb = Buffer.alloc(4); offb.writeUInt32LE(0); // placeholder
+    const lenb = Buffer.alloc(4); lenb.writeUInt32LE(length);
+    tempHeaderParts.push(nlen, name, offb, lenb);
+}
+const count = Buffer.alloc(4); count.writeUInt32LE(entries.length);
+const tempHeader = Buffer.concat([count, ...tempHeaderParts]);
+const headerSize = tempHeader.length; // true data offset base
+
+// now rebuild header with correct absolute offsets
+let headerParts = [];
+for (const { virt, offset, length } of entryMeta) {
+    const name = Buffer.from(virt, 'utf8');
+    const nlen = Buffer.alloc(2); nlen.writeUInt16LE(name.length);
+    const offb = Buffer.alloc(4); offb.writeUInt32LE(headerSize + offset);
+    const lenb = Buffer.alloc(4); lenb.writeUInt32LE(length);
+    headerParts.push(nlen, name, offb, lenb);
+    // console.log(virt);
+}
+
+const header = Buffer.concat([count, ...headerParts]);
+const full = Buffer.concat([header, ...dataParts]);
+
+// --- write final bundle ---
+const outPath = cfg.outputs.bundle || './bundle.bin';
+fs.mkdirSync(path.dirname(outPath), { recursive: true });
+fs.writeFileSync(outPath, full); // ⚡ write raw binary
+
+console.log(`✅ Bundled ${entries.length} files → ${outPath} (${full.length} bytes)`);
diff --git a/notes.md b/notes.md
index 7cf2186c..56c74577 100644
--- a/notes.md
+++ b/notes.md
@@ -15,6 +15,7 @@
 * `P` move all persisted / workspace settings/data to IndexedDB (LS limitations)
 * `P` faster ray intersect https://github.com/gkjohnson/three-mesh-bvh/
 * `P` try material clipping planes for slice range selection
+* `P` switch png lib to https://github.com/photopea/UPNG.js
 
 * `F` edit in Mesh:Tool
 * `F` custom device vars for profiles / ranges / gcode
diff --git a/package.json b/package.json
index 8ac0748a..b0880a91 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "grid-apps",
-    "version": "4.3.2",
+    "version": "4.3.3",
     "description": "grid.space 3d slicing & modeling tools",
     "author": "Stewart Allen <sa@grid.space>",
     "license": "MIT",
@@ -82,7 +82,8 @@
         "webpack-cli": "^5.1.4"
     },
     "scripts": {
-        "setup": "npm i && npm run clean && npm run dev -- --dryrun && npm run webpack-ext",
+        "setup": "npm run setup-mods && npm i && npm run clean && npm run dev -- --dryrun && npm run webpack-ext",
+        "setup-mods": "cd mods && npm i",
         "build": "npm run prebuild && electron-builder",
         "build-nopublish": "npm run prebuild && electron-builder --publish never",
         "build-debug": "npm run prebuild && DEBUG=electron-builder electron-builder",
diff --git a/src/data/index.js b/src/data/index.js
index e28217be..ee631f26 100644
--- a/src/data/index.js
+++ b/src/data/index.js
@@ -168,7 +168,7 @@ SP.init = function(options = {}) {
         request = IDB.open(name, this.version);
 
         request.onupgradeneeded = function(event) {
-            let db = storage.db = request.result;
+            let db = request.result;
             let current = [...db.objectStoreNames];
             let stores = storage.stores;
             // add missing stores
@@ -184,13 +184,12 @@ SP.init = function(options = {}) {
             // remove obsolete stores
             for (let curr of current) {
                 if (stores.indexOf(curr) < 0) {
-                    storage.db.deleteObjectStore(curr);
+                    db.deleteObjectStore(curr);
                     console.log({index_dropped: curr});
                 }
             }
-            event.target.transaction.oncomplete = function(event) {
-                storage.runQueue();
-            };
+            // allow transactions
+            storage.db = db;
         };
 
         request.onsuccess = function(event) {
@@ -217,6 +216,7 @@ SP.runQueue = function() {
         let i = 0, q = this.queue, e;
         while (i < q.length) {
             e = q[i++];
+            // console.log('runQ', i, ...e);
             switch (e.shift()) {
                 case 'iterate': this.iterate(...e); break;
                 case 'keys': this.keys(...e); break;
@@ -252,7 +252,11 @@ SP.put = function(key, value, callback, store = this.current) {
             req.onerror = function(event) { callback(false) };
         }
     } catch (e) {
-        console.log(e);
+        if (e.name === 'InvalidStateError') {
+            console.log({ putRetry: key });
+            return this.queue.push(['put', key, value, callback, store]);
+        }
+        console.log(e.name, e);
         if (callback) callback(false);
     }
 };
@@ -275,6 +279,10 @@ SP.get = function(key, callback, store = this.current) {
             req.onerror = function(event) { callback(null) };
         }
     } catch (e) {
+        if (e.name === 'InvalidStateError') {
+            console.log({ getRetry: key });
+            return this.queue.push(['get', key, callback, store]);
+        }
         console.log(e);
         if (callback) callback(null);
     }
diff --git a/src/ext/pngjs.esm.js b/src/ext/pngjs.esm.js
index 1da89a23..fd8cbbb7 100644
--- a/src/ext/pngjs.esm.js
+++ b/src/ext/pngjs.esm.js
@@ -4,4 +4,4 @@
 import './pngjs.js';
 
 // Re-export the PNG object
-export const PNG = self.png ? self.png.PNG : null;
\ No newline at end of file
+export const PNG = globalThis.png ? globalThis.png.PNG : null;
\ No newline at end of file
diff --git a/src/ext/pngjs.js b/src/ext/pngjs.js
index 561ca443..da7ca622 100644
--- a/src/ext/pngjs.js
+++ b/src/ext/pngjs.js
@@ -1,4 +1,4 @@
-(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.png = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
+(function(f){globalThis.png = f();if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.png = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
 (function (Buffer){
 "use strict";
 
diff --git a/src/kiri/core/api.js b/src/kiri/core/api.js
index 42ec035c..eb41dccb 100644
--- a/src/kiri/core/api.js
+++ b/src/kiri/core/api.js
@@ -9,7 +9,7 @@ import { client as work } from './client.js';
 import { consts, COLOR as color, LISTS as lists } from './consts.js';
 import { device, devices } from './devices.js';
 import { catalog, dialog, event, group, help, hide, image } from './main.js';
-import { modal, mode, probe, process, show, space, util, view } from './main.js';
+import { modal, mode, process, show, space, util, view } from './main.js';
 import { local as dataLocal } from '../../data/local.js';
 import { noop, ajax, o2js, js2o } from './utils.js';
 import { functions } from './function.js';
@@ -162,7 +162,6 @@ export const api = {
     o2js,
     onkey,
     platform,
-    probe,
     process,
     sdb: dataLocal,
     selection,
diff --git a/src/kiri/core/conf.js b/src/kiri/core/conf.js
index 71908b54..affad216 100644
--- a/src/kiri/core/conf.js
+++ b/src/kiri/core/conf.js
@@ -182,33 +182,33 @@ function normalize(settings) {
 
 // auto field renaming on import
 const renamed = {
-    roughingTool: "camRoughTool",
-    roughingSpindle: "camRoughSpindle",
-    roughingDown: "camRoughDown",
-    roughingOver: "camRoughOver",
-    roughingSpeed: "camRoughSpeed",
-    roughingPlunge: "camRoughPlunge",
-    roughingStock: "camRoughStock",
-    roughingPocket: "camRoughVoid",
-    roughingOn: "camRoughOn",
-    finishingTool: "camOutlineTool",
-    finishingSpindle: "camOutlineSpindle",
+    camWideCutout: "camOutlineWide",
+    drillDown: "camDrillDown",
+    drillDownSpeed: "camDrillDownSpeed",
+    drillDwell: "camDrillDwell",
+    drillingOn: "camDrillingOn",
+    drillLift: "camDrillLift",
+    drillSpindle: "camDrillSpindle",
+    drillTool: "camDrillTool",
     finishingDown: "camOutlineDown",
-    finishingOver: "camContourOver",
-    finishingSpeed: "camOutlineSpeed",
-    finishingPlunge: "camOutlinePlunge",
     finishingOn: "camOutlineOn",
+    finishingOver: "camContourOver",
+    finishingPlunge: "camOutlinePlunge",
+    finishingSpeed: "camOutlineSpeed",
+    finishingSpindle: "camOutlineSpindle",
+    finishingTool: "camOutlineTool",
     finishingXOn: "camContourXOn",
     finishingYOn: "camContourYOn",
-    drillTool: "camDrillTool",
-    drillSpindle: "camDrillSpindle",
-    drillDownSpeed: "camDrillDownSpeed",
-    drillDown: "camDrillDown",
-    drillDwell: "camDrillDwell",
-    drillLift: "camDrillLift",
-    drillingOn: "camDrillingOn",
-    camWideCutout: "camOutlineWide",
-    outputClockwise: "camConventional"
+    outputClockwise: "camConventional",
+    roughingDown: "camRoughDown",
+    roughingOn: "camRoughOn",
+    roughingOver: "camRoughOver",
+    roughingPlunge: "camRoughPlunge",
+    roughingPocket: "camRoughVoid",
+    roughingSpeed: "camRoughSpeed",
+    roughingSpindle: "camRoughSpindle",
+    roughingStock: "camRoughStock",
+    roughingTool: "camRoughTool",
 };
 
 export const conf = {
@@ -258,97 +258,97 @@ export const conf = {
             },
             // process defaults FDM:Process
             p:{
+                antiBacklash: 0,
+                arcTolerance: 0,
+                firstLayerBedTemp: 0,
+                firstLayerBeltBump: 0,
+                firstLayerBeltLead: 3,
+                firstLayerBrim: 0,
+                firstLayerBrimGap: 0,
+                firstLayerBrimIn: 0,
+                firstLayerBrimTrig: 0,
+                firstLayerFanSpeed: 0,
+                firstLayerFillRate: 35,
+                firstLayerFlatten: 0,
+                firstLayerLineMult: 1.0,
+                firstLayerNozzleTemp: 0,
+                firstLayerPrintMult: 1.0,
+                firstLayerRate: 30,
+                firstLayerYOffset: 0,
+                firstSliceHeight: 0.25,
+                outputAlternating: false,
+                outputAvoidGaps: true,
+                outputBedTemp: 60,
+                outputBeltFirst: false,
+                outputBrimCount: 2,
+                outputBrimOffset: 2,
+                outputCoastDist: 0,
+                outputDraftShield: false,
+                outputFanLayer: 1,
+                outputFanSpeed: 255,
+                outputFeedrate: 50,
+                outputFillMult: 1.25,
+                outputFinishrate: 50,
+                outputInvertX: false,
+                outputInvertY: false,
+                outputLayerRetract: false,
+                outputLoops: 0,
+                outputMinLayerTime: 10,
+                outputMinSpeed: 5.0,
+                outputPurgeTower: 0,
+                outputRaft: false,
+                outputRaftSpacing: 0.2,
+                outputRetractDist: 1.5,
+                outputRetractDwell: 20,
+                outputRetractSpeed: 40,
+                outputRetractWipe: 0,
+                outputScarfLength: 5,
+                outputSeekrate: 80,
+                outputShellMult: 1.25,
+                outputShortPoly: 0.0,
+                outputSparseMult: 1.25,
+                outputTemp: 200,
                 processName: "default",
+                ranges: [],
+                sliceAdaptive: false,
                 sliceAngle: 45,
+                sliceBottomLayers: 3,
+                sliceCompInner: 0,
+                sliceCompOuter: 0,
+                sliceDetectThin: "basic",
+                sliceFillAngle: 45,
+                sliceFillGrow: 0,
+                sliceFillOverlap: 0.35,
+                sliceFillRate: 0,
+                sliceFillRepeat: 1,
+                sliceFillSparse: 0.25,
+                sliceFillType: "hex",
+                sliceFillWidth: 1,
                 sliceHeight: 0.25,
-                sliceShells: 3,
-                sliceShellOrder: "in-out",
                 sliceLayerStart: "last",
                 sliceLayerStartX: 0,
                 sliceLayerStartY: 0,
                 sliceLineWidth: 0,
-                sliceCompInner: 0,
-                sliceCompOuter: 0,
-                sliceFillGrow: 0,
-                sliceFillAngle: 45,
-                sliceFillWidth: 1,
-                sliceFillOverlap: 0.35,
-                sliceFillSparse: 0.25,
-                sliceFillRepeat: 1,
-                sliceFillRate: 0,
-                sliceSolidRate: 0,
-                sliceFillType: "hex",
-                sliceSupportDensity: 0.1,
-                sliceSupportOffset: 1.0,
-                sliceSupportGap: 1,
-                sliceSupportSize: 5,
-                sliceSupportArea: 0.1,
-                sliceSupportSpan: 5,
-                sliceSupportGrow: 0,
-                sliceSupportExtra: 0,
-                sliceSupportAngle: 50,
-                sliceSupportNozzle: 0,
-                sliceSupportEnable: false,
-                sliceSupportOutline: true,
-                sliceZInterleave: false,
-                sliceSolidMinArea: 1,
-                sliceBottomLayers: 3,
-                sliceTopLayers: 3,
-                firstSliceHeight: 0.25,
-                firstLayerRate: 30,
-                firstLayerFillRate: 35,
-                firstLayerPrintMult: 1.0,
-                firstLayerLineMult: 1.0,
-                firstLayerYOffset: 0,
-                firstLayerNozzleTemp: 0,
-                firstLayerBedTemp: 0,
-                firstLayerBrim: 0,
-                firstLayerBrimIn: 0,
-                firstLayerBrimTrig: 0,
-                firstLayerBrimGap: 0,
-                firstLayerBeltLead: 3,
-                firstLayerBeltBump: 0,
-                firstLayerFanSpeed: 0,
-                firstLayerFlatten: 0,
-                outputRaft: false,
-                outputRaftSpacing: 0.2,
-                outputDraftShield: false,
-                outputTemp: 200,
-                outputBedTemp: 60,
-                outputFeedrate: 50,
-                outputFinishrate: 50,
-                outputSeekrate: 80,
-                outputShellMult: 1.25,
-                outputFillMult: 1.25,
-                outputSparseMult: 1.25,
-                outputFanLayer: 1,
-                outputFanSpeed: 255,
-                outputRetractDist: 1.5,
-                outputRetractSpeed: 40,
-                outputRetractWipe: 0,
-                outputRetractDwell: 20,
-                outputBrimCount: 2,
-                outputBrimOffset: 2,
-                outputScarfLength: 0,
-                outputShortPoly: 100.0,
-                outputMinSpeed: 10.0,
-                outputMinLayerTime: 0,
-                outputCoastDist: 0,
-                outputPurgeTower: 0,
-                outputBeltFirst: false,
-                outputAvoidGaps: true,
-                outputAlternating: false,
-                outputLayerRetract: false,
-                outputLoops: 0,
-                outputInvertX: false,
-                outputInvertY: false,
-                sliceDetectThin: "off",
                 sliceMinHeight: 0,
-                sliceAdaptive: false,
+                sliceShellOrder: "in-out",
+                sliceShells: 3,
+                sliceSolidMinArea: 1,
+                sliceSolidRate: 0,
+                sliceSupportAngle: 50,
+                sliceSupportArea: 0.1,
+                sliceSupportDensity: 0.1,
+                sliceSupportEnable: false,
+                sliceSupportExtra: 0,
+                sliceSupportGap: 1,
+                sliceSupportGrow: 0,
+                sliceSupportNozzle: 0,
+                sliceSupportOffset: 1.0,
+                sliceSupportOutline: true,
+                sliceSupportSize: 5,
+                sliceSupportSpan: 5,
+                sliceTopLayers: 3,
+                sliceZInterleave: false,
                 zHopDistance: 0.2,
-                arcTolerance: 0,
-                antiBacklash: 0,
-                ranges: []
             }
         },
         sla:{
@@ -422,186 +422,186 @@ export const conf = {
             },
             // process defaults CAM:Process
             p:{
-                processName: "default",
-                camLevelTool: 1000,
-                camLevelSpindle: 1000,
-                camLevelOver: 0.75,
-                camLevelStepZ: 0,
-                camLevelSpeed: 1000,
-                camLevelDown: 0,
-                camLevelInset: 0.5,
-                camLevelStock: true,
-                camRoughTool: 1000,
-                camRoughSpindle: 1000,
-                camRoughDown: 2,
-                camRoughOver: 0.4,
-                camRoughSpeed: 1000,
-                camRoughPlunge: 250,
-                camRoughStock: 0,
-                camRoughStockZ: 0,
-                camRoughAll: true,
-                camRoughVoid: false,
-                camRoughFlat: true,
-                camRoughTop: true,
-                camRoughIn: true,
-                camRoughOn: true,
-                camRoughOmitThru: false,
-                camRoughOmitVoid: false,
-                camOutlineTool: 1000,
-                camOutlineSpindle: 1000,
-                camOutlineTop: true,
-                camOutlineDown: 3,
-                camOutlineOver: 0.4,
-                camOutlineOverCount: 1,
-                camOutlineSpeed: 800,
-                camOutlinePlunge: 250,
-                camOutlineWide: false,
-                camOutlineDogbone: false,
-                camOutlineOmitThru: false,
-                camOutlineOmitVoid: false,
-                camOutlineOut: true,
-                camOutlineIn: false,
-                camOutlineOn: true,
-                camContourTool: 1000,
-                camContourSpindle: 1000,
-                camContourOver: 0.5,
-                camContourSpeed: 1000,
+                camArcEnabled: false,
+                camArcResolution: 5,
+                camArcTolerance: 0.15,
                 camContourAngle: 85,
-                camContourLeave: 0,
-                camContourReduce: 2,
                 camContourBottom: false,
+                camContourBridge: 0,
                 camContourCurves: false,
                 camContourIn: false,
+                camContourLeave: 0,
+                camContourOver: 0.5,
+                camContourReduce: 2,
+                camContourSpeed: 1000,
+                camContourSpindle: 1000,
+                camContourTool: 1000,
                 camContourXOn: true,
                 camContourYOn: true,
-                camLatheTool: 1000,
-                camLatheSpindle: 1000,
-                camLatheOver: 0.1,
-                camLatheAngle: 1,
-                camLatheSpeed: 500,
-                camLatheLinear: true,
-                camTolerance: 0,
-                camTraceTool: 1000,
-                camTraceSpindle: 1000,
-                camTraceType: "follow",
-                camTraceOver: 0.5,
-                camTraceDown: 0,
-                camTraceThru: 0,
-                camTraceSpeed: 250,
-                camTracePlunge: 200,
-                camTraceOffOver: 0,
-                camTraceDogbone: false,
-                camTraceMerge: false,
-                camTraceLines: false,
-                camTraceZTop: 0,
-                camTraceZBottom: 0,
-                camPocketSpindle: 1000,
-                camPocketTool: 1000,
-                camPocketOver: 0.25,
-                camPocketDown: 1,
-                camPocketSpeed: 250,
-                camPocketPlunge: 200,
-                camPocketExpand: 0,
-                camPocketSmooth: 0,
-                camPocketRefine: 20,
-                camPocketFollow: 5,
-                camPocketContour: false,
-                camPocketEngrave: false,
-                camPocketOutline: false,
-                camPocketZTop: 0,
-                camPocketZBottom: 0,
-                camDrillTool: 1006,
-                camDrillSpindle: 1000,
-                camDrillDownSpeed: 250,
+                camConventional: false, // outputClockwise
+                camDepthFirst: false,
                 camDrillDown: 5,
+                camDrillDownSpeed: 250,
                 camDrillDwell: 250,
+                camDrillFromStockTop: false,
+                camDrillingOn: false,
                 camDrillLift: 2,
                 camDrillMark: false,
-                camDrillFromStockTop: false,
-                camDrillThru: 5,
                 camDrillPrecision: 1,
-                camDrillingOn: false,
-                camRegisterSpeed: 1000,
-                camRegisterThru: 5,
-                camRegisterOffset: 10,
-                camHelicalTool: 1000,
-                camHelicalSpindle: 1000,
-                camHelicalDownSpeed: 250,
-                camHelicalSpeed: 1000,
-                camHelicalDown: 5,
-                camHelicalBottomFinish: true,
-                camHelicalThru: 0,
-                camHelicalOffset: "auto",
-                camHelicalForceStartAngle: false,
-                camHelicalStartAngle: 0,
-                camHelicalOffsetOverride: 0,
-                camHelicalEntry: false,
-                camHelicalEntryOffset:0,
-                camHelicalReverse: false,
-                camHelicalClockwise: true,
-                camFlipAxis: "X",
-                camFlipOther: "",
-                camLaserEnable: ["M321"],
-                camLaserDisable: ["M322"],
-                camLaserOn: ["M3"],
-                camLaserOff: ["M5"],
-                camLaserSpeed: 100,
-                camLaserPower: 1,
-                camLaserAdaptive: false,
-                camLaserAdaptMod: false,
-                camLaserFlatten: false,
-                camLaserFlatZ: 0,
-                camLaserPowerMin: 0,
-                camLaserPowerMax: 1,
-                camLaserZMin: 0,
-                camLaserZMax: 0,
-                camTabsWidth: 5,
-                camTabsHeight: 5,
-                camTabsDepth: 5,
-                camTabsMidline: false,
-                camDepthFirst: false,
-                camInnerFirst: false,
-                camEaseDown: false,
+                camDrillSpindle: 1000,
+                camDrillThru: 5,
+                camDrillTool: 1006,
                 camEaseAngle: 10,
-                camOriginTop: true,
-                camZAnchor: "middle",
-                camZOffset: 0,
-                camZTop: 0,
-                camZBottom: 0,
-                camZClearance: 1,
-                camZThru: 0,
+                camEaseDown: false,
+                camExpertFast: false,
                 camFastFeed: 6000,
                 camFastFeedZ: 300,
-                camTolerance: 0,
+                camFirstZMax: false,
                 camFlatness: 0.001,
-                camContourBridge: 0,
-                camStockX: 5,
-                camStockY: 5,
-                camStockZ: 5,
-                camStockOffset: true,
-                camStockClipTo: false,
-                camStockIndexed: false,
-                camStockIndexGrid: true,
-                camIndexAxis: 0,
+                camFlipAxis: "X",
+                camFlipOther: "",
+                camForceZMax: false,
+                camFullEngage: 0.8,
+                camHelicalBottomFinish: true,
+                camHelicalClockwise: true,
+                camHelicalDown: 5,
+                camHelicalDownSpeed: 250,
+                camHelicalEntry: false,
+                camHelicalEntryOffset:0,
+                camHelicalForceStartAngle: false,
+                camHelicalOffset: "auto",
+                camHelicalOffsetOverride: 0,
+                camHelicalReverse: false,
+                camHelicalSpeed: 1000,
+                camHelicalSpindle: 1000,
+                camHelicalStartAngle: 0,
+                camHelicalThru: 0,
+                camHelicalTool: 1000,
                 camIndexAbs: true,
-                camConventional: false, // outputClockwise
+                camIndexAxis: 0,
+                camInnerFirst: false,
+                camLaserAdaptive: false,
+                camLaserAdaptMod: false,
+                camLaserDisable: ["M322"],
+                camLaserEnable: ["M321"],
+                camLaserFlatten: false,
+                camLaserFlatZ: 0,
+                camLaserOff: ["M5"],
+                camLaserOn: ["M3"],
+                camLaserPower: 1,
+                camLaserPowerMax: 1,
+                camLaserPowerMin: 0,
+                camLaserSpeed: 100,
+                camLaserZMax: 0,
+                camLaserZMin: 0,
+                camLatheAngle: 1,
+                camLatheLinear: true,
+                camLatheOver: 0.1,
+                camLatheSpeed: 500,
+                camLatheSpindle: 1000,
+                camLatheTool: 1000,
+                camLevelDown: 0,
+                camLevelInset: 0.5,
+                camLevelOver: 0.75,
+                camLevelSpeed: 1000,
+                camLevelSpindle: 1000,
+                camLevelStepZ: 0,
+                camLevelStock: true,
+                camLevelTool: 1000,
                 camOriginCenter: false,
                 camOriginOffX: 0,
                 camOriginOffY: 0,
                 camOriginOffZ: 0,
+                camOriginTop: true,
+                camOutlineDogbone: false,
+                camOutlineDown: 3,
+                camOutlineIn: false,
+                camOutlineOmitThru: false,
+                camOutlineOmitVoid: false,
+                camOutlineOn: true,
+                camOutlineOut: true,
+                camOutlineOver: 0.4,
+                camOutlineOverCount: 1,
+                camOutlinePlunge: 250,
+                camOutlineSpeed: 800,
+                camOutlineSpindle: 1000,
+                camOutlineTool: 1000,
+                camOutlineTop: true,
+                camOutlineWide: false,
+                camPocketContour: false,
+                camPocketDown: 1,
+                camPocketEngrave: false,
+                camPocketExpand: 0,
+                camPocketFollow: 5,
+                camPocketOutline: false,
+                camPocketOver: 0.25,
+                camPocketPlunge: 200,
+                camPocketRefine: 20,
+                camPocketSmooth: 0,
+                camPocketSpeed: 250,
+                camPocketSpindle: 1000,
+                camPocketTool: 1000,
+                camPocketZBottom: 0,
+                camPocketZTop: 0,
+                camRegisterOffset: 10,
+                camRegisterSpeed: 1000,
+                camRegisterThru: 5,
+                camRoughAll: true,
+                camRoughDown: 2,
+                camRoughFlat: true,
+                camRoughIn: true,
+                camRoughOmitThru: false,
+                camRoughOmitVoid: false,
+                camRoughOn: true,
+                camRoughOver: 0.4,
+                camRoughPlunge: 250,
+                camRoughSpeed: 1000,
+                camRoughSpindle: 1000,
+                camRoughStock: 0,
+                camRoughStockZ: 0,
+                camRoughTool: 1000,
+                camRoughTop: true,
+                camRoughVoid: false,
+                camStockClipTo: false,
+                camStockIndexed: false,
+                camStockIndexGrid: true,
+                camStockOffset: true,
+                camStockX: 5,
+                camStockY: 5,
+                camStockZ: 5,
+                camTabsDepth: 5,
+                camTabsHeight: 5,
+                camTabsMidline: false,
+                camTabsWidth: 5,
+                camTolerance: 0,
+                camTolerance: 0,
+                camToolInit: true,
+                camTraceDogbone: false,
+                camTraceDown: 0,
+                camTraceLines: false,
+                camTraceMerge: false,
+                camTraceOffOver: 0,
+                camTraceOver: 0.5,
+                camTracePlunge: 200,
+                camTraceSpeed: 250,
+                camTraceSpindle: 1000,
+                camTraceThru: 0,
+                camTraceTool: 1000,
+                camTraceType: "follow",
+                camTraceZBottom: 0,
+                camTraceZTop: 0,
+                camTrueShadow: false,
+                camZAnchor: "middle",
+                camZBottom: 0,
+                camZClearance: 1,
+                camZOffset: 0,
+                camZThru: 0,
+                camZTop: 0,
+                op2: [], // flip ops
+                ops: [], // current ops
                 outputInvertX: false,
                 outputInvertY: false,
-                camExpertFast: false,
-                camTrueShadow: false,
-                camArcEnabled: false,
-                camArcTolerance: 0.15,
-                camArcResolution: 5,
-                camForceZMax: false,
-                camFirstZMax: false,
-                camToolInit: true,
-                camFullEngage: 0.8,
-                ops: [], // current ops
-                op2: []  // flip ops
+                processName: "default",
             }
         },
         laser: {
@@ -917,37 +917,35 @@ export const conf = {
         devproc: {},
         // application ui and control preferences (Q menu)
         controller:{
-            view: null,
-            dark: false,
-            shiny: false,
-            drawer: false,
-            scrolls: true,
-            zoomSpeed: 1.0,
-            lineType: "path",
-            autoSave: true,
+            animesh: "800",
             antiAlias: true,
+            assembly: false,
+            autoLayout: true,
+            autoSave: true,
+            dark: false,
+            detail: "50",
+            devel: false,
+            drawer: false,
+            edgeangle: 20,
+            exportOcto: false,
+            exportPreview: false,
+            exportThumb: false,
+            freeLayout: true,
+            healMesh: false,
+            lineType: "path",
+            ortho: false,
             reverseZoom: true,
+            scrolls: true,
+            shiny: true,
             showOrigin: false,
             showRulers: true,
             showSpeeds: true,
-            freeLayout: true,
-            autoLayout: true,
-            spaceRandoX: false,
             spaceLayout: 1,
-            edgeangle: 20,
-            units: "mm",
-            exportOcto: false,
-            exportGhost: false,
-            exportLocal: false,
-            exportThumb: false,
-            exportPreview: false,
-            detail: "50",
-            animesh: "800",
-            healMesh: false,
+            spaceRandoX: false,
             threaded: true,
-            assembly: false,
-            ortho: false,
-            devel: false
+            units: "mm",
+            view: null,
+            zoomSpeed: 1.0,
         },
         // default hidden ui groups
         hidden: {
diff --git a/src/kiri/core/export.js b/src/kiri/core/export.js
index b7440ab1..dbabe999 100644
--- a/src/kiri/core/export.js
+++ b/src/kiri/core/export.js
@@ -218,207 +218,6 @@ function exportGCodeDialog(gcode, sections, info, names) {
         ajax.send(form);
     }
 
-    function gridhost_tracker(host,key) {
-        ajax(host+"/api/check?key="+key, function(data) {
-            data = js2o(data);
-            console.log(data);
-            if (!(data.done || data.error)) {
-                setTimeout(function() { gridhost_tracker(host,key) }, 1000);
-            }
-        });
-    }
-
-    function gridlocal_probe(ev, devs) {
-        if (ev && ev.code !== 'Enter') return;
-
-        if (!devs && api.probe.local(gridlocal_probe)) return;
-
-        grid_local = devs;
-
-        let gdev = localGet('grid-local');
-        let gloc = $('grid-local');
-        let html = [];
-        for (let uuid in devs) {
-            gdev = gdev || uuid;
-            let dev = devs[uuid];
-            let sel = uuid === gdev ? ' selected' : '';
-            html.push(`<option id="gl-${uuid}" value="${uuid}" ${sel}>${dev.stat.device.name}</option>`);
-        }
-
-        if (html.length) {
-            gloc.innerHTML = html.join('\n');
-            gloc.onchange = (ev) => {
-                localSet('grid-local', gloc.options[gloc.selectedIndex].value);
-            };
-            $('send-to-gridhead').style.display = 'flex';
-            $('send-to-gridspool').style.display = 'flex';
-        } else {
-            $('send-to-gridhead').style.display = '';
-            $('send-to-gridspool').style.display = '';
-        }
-    }
-
-    function sendto_gridlocal() {
-        let uuid = $('grid-local').value;
-        let dev = grid_local[uuid];
-        if (dev) {
-            let file = $('print-filename').value;
-            fetch(
-                `${api.probe.live}/api/grid_send?uuid=${uuid}&file=${encodeURIComponent(file + "." + fileext)}`,
-                {method: "POST", body: gcode}
-            )
-            .then(t => t.text())
-            .then(t => {
-                api.stats.add(`ua_${api.mode.get_lower()}_print_local_ok`);
-                console.log({grid_spool_said: t});
-            })
-            .catch(e => {
-                api.stats.add(`ua_${api.mode.get_lower()}_print_local_err`);
-                console.log({grid_local_spool_error: e});
-            })
-            .finally(() => {
-                api.modal.hide();
-            });
-        }
-    }
-
-    function admin_gridlocal() {
-        let dev = grid_local[$('grid-local').value];
-        if (dev && dev.stat && dev.stat.device) {
-            let dsd = dev.stat.device;
-            window.open(`http://${dsd.addr[0]}:${dsd.port || 4080}`, "_grid_admin");
-        }
-    }
-
-    function gridhost_probe(ev, set_host) {
-        if (ev && ev.code !== 'Enter') return;
-        if (!(grid_host && grid_apik)) return;
-
-        if (set_host) grid_host.value = set_host;
-
-        let xhtr = new XMLHttpRequest(),
-            host = grid_host.value,
-            apik = grid_apik.value,
-            target = grid_target.value;
-
-        if (!apik) $('gpapik').style.display = 'none';
-
-        if (!host && api.probe.grid(gridhost_probe)) return;
-
-        if (!host) return;
-
-        xhtr.onreadystatechange = function() {
-            if (xhtr.readyState === 4) {
-                if (xhtr.status >= 200 && xhtr.status < 300) {
-                    localSet('grid-host', host);
-                    localSet('grid-apik', apik);
-                    let res = JSON.parse(xhtr.responseText);
-                    let sel = false;
-                    let match = false;
-                    let first = null;
-                    let html = [];
-                    grid_targets = {};
-                    for (let key in res) {
-                        first = first || key;
-                        if (!localGet('grid-target')) {
-                            localSet('grid-target', key);
-                            sel = true;
-                        } else {
-                            sel = localGet('grid-target') === key;
-                        }
-                        match = match || sel;
-                        grid_targets[html.length] = key;
-                        html.push(
-                            "<option id='gpo-'" + key + " value='" +key + "'" +
-                            (sel ? " selected" : "") +
-                            ">" +
-                            (res[key].comment || key) +
-                            "</option>"
-                        );
-                    }
-                    if (!match) {
-                        localSet('grid-target', first);
-                    }
-                    grid_target.innerHTML = html.join('\n');
-                } else if (xhtr.status === 401) {
-                    $('gpapik').style.display = '';
-                } else {
-                    local.removeItem('grid-host');
-                    local.removeItem('grid-apik');
-                    console.log("invalid grid:host url");
-                }
-            }
-        };
-
-        xhtr.open("GET", host + "/api/active?key=" + apik);
-        xhtr.send();
-    }
-
-    function sendto_gridhost() {
-        if (!(grid_host && grid_apik)) return;
-
-        let xhtr = new XMLHttpRequest(),
-            host = grid_host.value,
-            apik = grid_apik.value,
-            target = localGet('grid-target') || '';
-
-        if (target === '') {
-            api.show.alert('invalid or missing target');
-            return;
-        }
-        if (host.indexOf("http") !== 0) {
-            api.show.alert("host missing protocol (http:// or https://)");
-            return;
-        }
-        if (host.indexOf("://") < 0) {
-            api.show.alert("host:port malformed");
-            return;
-        }
-        if (api.const.SECURE && !api.util.isSecure(host)) {
-            api.show.alert("host must begin with 'https' on a secure site");
-            return;
-        }
-
-        localSet('grid-host', host.trim());
-        localSet('grid-apik', apik.trim());
-
-        xhtr.onreadystatechange = function() {
-            if (xhtr.readyState === 4) {
-                let status = xhtr.status;
-                api.stats.add(`ua_${api.mode.get_lower()}_print_grid_${status}`);
-                if (status >= 200 && status < 300) {
-                    let json = js2o(xhtr.responseText);
-                    gridhost_tracker(host,json.key);
-                    api.ajax(host+"/api/wait?key="+json.key, function(data) {
-                        data = js2o(data);
-                        console.log(data);
-                        api.show.alert("print to "+target+": "+data.status, 600);
-                    });
-                } else {
-                    api.show.alert("grid:host error\nstatus: "+status+"\nmessage: "+xhtr.responseText, 10000);
-                }
-                api.show.progress(0);
-            }
-        };
-        xhtr.upload.addEventListener('progress', function(evt) {
-            api.show.progress(evt.loaded/evt.total, "sending");
-        });
-        filename = $('print-filename').value;
-        xhtr.open("POST",
-            host + "/api/print?" +
-            "filename=" + filename +
-            "&target=" + target +
-            "&key=" + apik +
-            "&time=" + Math.round(info.time) +
-            "&length=" + Math.round(info.distance) +
-            "&image=" + filename
-        );
-        xhtr.setRequestHeader("Content-Type", "text/plain");
-        let snapshot = api.view.snapshot;
-        xhtr.send(snapshot ? [gcode,snapshot].join("\0") : gcode);
-        api.modal.hide();
-    }
-
     function download() {
         filename = $('print-filename').value;
         api.util.download(gcode, filename + "." + fileext);
@@ -463,8 +262,6 @@ function exportGCodeDialog(gcode, sections, info, names) {
         let set = api.conf.get();
         let fdm = MODE === MODES.FDM;
         let octo = set.controller.exportOcto && MODE !== MODES.CAM;
-        let ghost = set.controller.exportGhost;
-        let local = set.controller.exportLocal;
         let preview = set.controller.exportPreview;
         $('code-preview-head').style.display = preview ? '' : 'none';
         $('code-preview').style.display = preview ? '' : 'none';
@@ -484,8 +281,6 @@ function exportGCodeDialog(gcode, sections, info, names) {
         // persist fields when changed
         bindField('octo-host', 'octo-host');
         bindField('octo-apik', 'octo-apik');
-        bindField('grid-host', 'grid-host');
-        bindField('grid-apik', 'grid-apik');
 
         // in cam mode, show zip file option
         let downloadZip = $('print-zip');
@@ -699,37 +494,11 @@ function exportGCodeDialog(gcode, sections, info, names) {
                 $('ophost').style.display = 'none';
                 $('opapik').style.display = 'none';
                 $('oph1nt').style.display = 'none';
-                $('send-to-gridhost').style.display = 'none';
             }
             octo_host.value = localGet('octo-host') || '';
             octo_apik.value = localGet('octo-apik') || '';
         } catch (e) { console.log(e) }
 
-        // grid:host setup
-        $('send-to-hosthead').style.display = ghost ? '' : 'none';
-        $('send-to-gridhost').style.display = ghost ? '' : 'none';
-        if (ghost) try {
-            $('print-gridhost').onclick = sendto_gridhost;
-            $('grid-host').onkeyup = gridhost_probe;
-            $('grid-apik').onkeyup = gridhost_probe;
-            grid_host = $('grid-host');
-            grid_apik = $('grid-apik');
-            grid_target = $('grid-target');
-            grid_target.onchange = function(ev) {
-                localSet('grid-target', grid_targets[grid_target.selectedIndex]);
-            };
-            grid_host.value = localGet('grid-host') || '';
-            grid_apik.value = localGet('grid-apik') || '';
-            gridhost_probe();
-        } catch (e) { console.log(e) }
-
-        // grid:local setup
-        if (local) try {
-            gridlocal_probe();
-            $('print-gridlocal').onclick = sendto_gridlocal;
-            $('admin-gridlocal').onclick = admin_gridlocal;
-        } catch (e) { console.log(e) }
-
         // preview of the generated GCODE (first 64k max)
         if (preview && gcode) $('code-preview-textarea').value = gcode.substring(0,65535);
 }
diff --git a/src/kiri/core/init.js b/src/kiri/core/init.js
index 02dd0a55..95492134 100644
--- a/src/kiri/core/init.js
+++ b/src/kiri/core/init.js
@@ -155,8 +155,6 @@ function booleanSave() {
     control.reverseZoom = ui.reverseZoom.checked;
     control.dark = ui.dark.checked;
     control.exportOcto = ui.exportOcto.checked;
-    control.exportGhost = ui.exportGhost.checked;
-    control.exportLocal = ui.exportLocal.checked;
     control.exportThumb = ui.exportThumb.checked;
     control.exportPreview = ui.exportPreview.checked;
     control.healMesh = ui.healMesh.checked;
@@ -904,7 +902,6 @@ function init_one() {
             xany:               $('mod-x-any'),
             xsla:               $('mod-x-sla'),
             xlaser:             $('mod-x-laser'),
-            local:              $('mod-local'),
             don8:               $('mod-don8'),
             any:                $('mod-any'),
         },
@@ -1058,8 +1055,6 @@ function init_one() {
         spaceRandoX:      newBoolean(LANG.op_spcx_s, booleanSave, {title:LANG.op_spcx_l, show:isBelt}),
         spaceLayout:      newInput(LANG.op_spcr_s, {title:LANG.op_spcr_l, convert:toFloat, size:3, units}),
         _____:            newGroup(LANG.xp_menu, $('prefs-xpo'), {inline: true}),
-        exportLocal:      newBoolean(`Grid:Local`, booleanSave, {title:LANG.op_exgl_l}),
-        exportGhost:      newBoolean(`Grid:Host`, booleanSave, {title:LANG.op_exgh_l}),
         exportOcto:       newBoolean(`OctoPrint`, booleanSave, {title:LANG.op_exop_l}),
         exportThumb:      newBoolean(`Thumbnail`, booleanSave, {modes:FDM}),
         exportPreview:    newBoolean(`Code Preview`, booleanSave),
diff --git a/src/kiri/core/main.js b/src/kiri/core/main.js
index 51a00689..ed2f9363 100644
--- a/src/kiri/core/main.js
+++ b/src/kiri/core/main.js
@@ -114,12 +114,6 @@ export const mode = {
     }
 };
 
-export const probe = {
-    live: "https://live.grid.space",
-    grid: noop,
-    local: noop
-};
-
 export const process = {
     code: currentProcessCode,
     get: currentProcessName
@@ -784,43 +778,7 @@ function showHelpFile(local,then) {
 }
 
 function showLocal() {
-    showModal('local');
-    api.probe.local((err,data) => {
-        let devc = 0;
-        let bind = [];
-        let html = ['<table>'];
-        html.push(`<thead><tr><th>device</th><th>type</th><th>status</th><th></th></tr></thead>`);
-        html.push(`<tbody>`);
-        let recs = [];
-        for (let k in data) {
-            recs.push(data[k].stat);
-        }
-        recs.sort((a,b) => {
-            return a.device.name < b.device.name ? -1 : 1;
-        });
-        for (let r of recs) {
-            bind.push({uuid: r.device.uuid, host: r.device.addr[0], port: r.device.port});
-            html.push(`<tr>`);
-            html.push(`<td>${r.device.name}</td>`);
-            html.push(`<td>${r.device.mode}</td>`);
-            html.push(`<td>${r.state}</td>`);
-            html.push(`<td><button id="${r.device.uuid}">admin</button></td>`);
-            html.push(`</tr>`);
-            devc++;
-        }
-        html.push(`</tbody>`);
-        html.push(`</table>`);
-        if (devc) {
-            $('mod-local').innerHTML = html.join('');
-        } else {
-            $('mod-local').innerHTML = `<br><b>no local devices</b>`;
-        }
-        bind.forEach(rec => {
-            $(rec.uuid).onclick = () => {
-                window.open(`http://${rec.host}:${rec.port||4080}/`);
-            };
-        });
-    });
+    // deprecated
 }
 
 function setViewMode(mode) {
diff --git a/src/kiri/core/print.js b/src/kiri/core/print.js
index 86736811..5f3ee901 100644
--- a/src/kiri/core/print.js
+++ b/src/kiri/core/print.js
@@ -129,6 +129,7 @@ class Print {
             close = !options.open,
             scarf = !poly.open ? (options.scarf ?? 0) : false,
             tool = options.tool,
+            zmax = options.zmax,
             last = startPoint,
             first = true;
 
diff --git a/src/kiri/mode/cam/client.js b/src/kiri/mode/cam/client.js
index bd509dbf..8f6af172 100644
--- a/src/kiri/mode/cam/client.js
+++ b/src/kiri/mode/cam/client.js
@@ -10,7 +10,7 @@ import { Layers } from '../../core/layers.js';
 import { Stack } from '../../core/stack.js';
 import { updateStock } from './cl-stock.js';
 import { createPopOps } from './cl-ops.js';
-import { tabAdd, tabDone, tabClear, restoreTabs, rotateTabs, updateTabs, clearTabs } from './cl-tab.js';
+import { tabAdd, tabDone, tabClear, restoreTabs, rotateTabs, updateTabs, clearTabs, mirrorTabs } from './cl-tab.js';
 import { traceOn, traceDone, unselectTraces } from './cl-trace.js';
 import { holeSelOn, selectHolesDone, clearHolesRec } from './cl-hole.js';
 import { surfaceOn, surfaceDone } from './cl-surface.js';
@@ -320,6 +320,7 @@ export function opRender() {
             el.classList.add("disabled");
         }
         bounds.push(el);
+        let parent = $('camops');
         let timer = null;
         let inside = true;
         let popped = false;
@@ -329,14 +330,14 @@ export function opRender() {
         }
         el.rec = rec;
         el.unpop = () => {
-            let pos = [...el.childNodes].indexOf(poprec.div);
+            let pos = [...parent.childNodes].indexOf(poprec.div);
             if (pos >= 0) {
-                el.removeChild(poprec.div);
+                parent.removeChild(poprec.div);
             }
             popped = false;
         };
         function onEnter(ev) {
-            if ((surfaceOn || traceOn) && env.poppedRec != rec) {
+            if ((clock || surfaceOn || traceOn) && env.poppedRec != rec) {
                 return;
             }
             if (popped && env.poppedRec != rec) {
@@ -351,22 +352,24 @@ export function opRender() {
             popped = true;
             poprec.use(rec);
             env.hoveredOp = el;
-            if (!clock) {
-                // offset Y position of pop div by % of Y screen location of button
-                el.appendChild(poprec.div);
-                poprec.addNote();
-                const { innerHeight } = window;
-                const brect = ev.target.getBoundingClientRect();
-                const prect = poprec.div.getBoundingClientRect();
-                const pcty = (brect.top / innerHeight) * 0.9;
-                const offpx = -pcty * prect.height;
-                poprec.div.style.transform = `translateY(${offpx}px)`;
-            }
+            // offset Y position of pop div by % of Y screen location of button
+            parent.appendChild(poprec.div);
+            poprec.addNote();
+            const { innerHeight } = window;
+            const brect = ev.target.getBoundingClientRect();
+            const prect = parent.getBoundingClientRect();
+            const Prect = poprec.div.getBoundingClientRect();
+            const tdiff = prect.top - brect.top;
+            const botoff = innerHeight - (brect.top + Prect.height);
+            const offpx = -tdiff + (botoff < 0 ? botoff : -Prect.height/3);
+            poprec.div.style.transform = `translateY(${offpx}px)`;
+            poprec.div.onmouseenter = () => { inside = true };
+            poprec.div.onmouseleave = onLeave;
             // option click event appears latent
             // and overides the sticky settings
             setTimeout(() => {
                 UC.setSticky(false);
-            }, 0);
+            }, 10);
         }
         function onLeave(ev) {
             inside = false;
diff --git a/src/kiri/mode/cam/op-contour.js b/src/kiri/mode/cam/op-contour.js
index ae7e089a..1d14b313 100644
--- a/src/kiri/mode/cam/op-contour.js
+++ b/src/kiri/mode/cam/op-contour.js
@@ -4,26 +4,70 @@ import { CamOp } from './op.js';
 import { Tool } from './tool.js';
 import { generate as Topo } from './topo3.js';
 import { newPoint } from '../../../geo/point.js';
+import { newPolygon } from '../../../geo/polygon.js';
 import { tip2tipEmit } from '../../../geo/paths.js';
 
-function createFilter(op) {
+function createFilter(op, origin, axis) {
+    console.log({ origin, axis });
+    let ok = () => true;
     let filter = slices => slices;
     let filterString = op.filter?.map(l => l.trim()).join('\n');
     if (filterString) {
         try {
             const obj = eval(`( ${filterString} )`);
-            let idx = 0;
-            if (obj && obj.slices) {
-                const nadd = [];
-                filter = function (slices) {
-                    for (let slice of slices) {
-                        if (obj.slices(slice, idx++)) {
-                            nadd.push(slice);
+            let box = obj?.box;
+            let slice_fn = obj?.slices;
+            let index = 0;
+            const accept = [];
+            filter = function (slices) {
+                for (let slice of slices) {
+                    if (slice_fn && slice_fn(slice, index++)) {
+                        accept.push(slice);
+                    } else if (box) {
+                        // slice.z = x when axis = y
+                        // slice.z = y when axis = x
+                        let { x, y, z } = box;
+                        x = x ?? [ -Infinity, Infinity ];
+                        y = y ?? [ -Infinity, Infinity ];
+                        z = z ?? [ -Infinity, Infinity ];
+                        let ok = false;
+                        if (axis === 'x') {
+                            let sy = slice.z + origin.y;
+                            if (sy >= y[0] && sy <= y[1]) {
+                                ok = true;
+                                for (let p of slice.camLines) {
+                                    p.points = p.points.filter(p =>
+                                        p.x - origin.x >= x[0] && p.x - origin.x <= x[1] &&
+                                        p.z - origin.z >= z[0] && p.z - origin.z <= z[1]
+                                    );
+                                }
+                            }
+                        } else {
+                            let sx = slice.z - origin.x;
+                            if (sx >= x[0] && sx <= x[1]) {
+                                ok = true;
+                                for (let p of slice.camLines) {
+                                    p.points = p.points.filter(p =>
+                                        p.y + origin.y >= y[0] && p.y + origin.y <= y[1] &&
+                                        p.z - origin.z >= z[0] && p.z - origin.z <= z[1]
+                                    );
+                                }
+                            }
+                        }
+                        if (ok) {
+                            slice.camLines = slice.camLines.map(p => {
+                                if (p.points.length > 1) {
+                                    return newPolygon(p.points).setOpen(true);
+                                } else {
+                                    return undefined;
+                                }
+                            }).filter(p => p);
+                            accept.push(slice);
                         }
                     }
-                    return nadd;
-                };
-            }
+                }
+                return accept;
+            };
         } catch (e) {
             console.log('filter parse error', e, op.filter);
         }
@@ -38,8 +82,8 @@ class OpContour extends CamOp {
 
     async slice(progress) {
         let { op, state } = this;
-        let { addSlices, settings, updateToolDiams } = state;
-        let filter = createFilter(op);
+        let { color, addSlices, settings, updateToolDiams } = state;
+        let filter = createFilter(op, settings.origin, op.axis.toLowerCase());
         let toolDiam = this.toolDiam = new Tool(settings, op.tool).fluteDiameter();
         updateToolDiams(toolDiam);
         // we need topo for safe travel moves when roughing and outlining
@@ -54,6 +98,11 @@ class OpContour extends CamOp {
                 slices = filter(slices);
                 this.sliceOut = slices;
                 addSlices(slices);
+                for (let slice of slices) {
+                    slice.output()
+                        .setLayer(`contour ${op.axis}`, { face: color, line: color })
+                        .addPolys(slice.camLines);
+                }
             },
             contour: op,
             state: state
diff --git a/src/kiri/mode/cam/op-lathe.js b/src/kiri/mode/cam/op-lathe.js
index 915ae7e1..d1cde28b 100644
--- a/src/kiri/mode/cam/op-lathe.js
+++ b/src/kiri/mode/cam/op-lathe.js
@@ -6,22 +6,23 @@ import { generate as topo4_generate } from './topo4.js';
 import { newPoint } from '../../../geo/point.js';
 
 function createFilter(op) {
+    let ok = () => true;
     let filter = slices => slices;
-    if (op.filter) {
+    let filterString = op.filter?.map(l => l.trim()).join('\n');
+    if (filterString) {
         try {
-            const obj = eval(`( ${op.filter.join('\n')} )`);
-            let idx = 0;
-            if (obj && obj.slices) {
-                const nadd = [];
-                filter = function (slices) {
-                    for (let slice of slices) {
-                        if (obj.slices(slice, idx++)) {
-                            nadd.push(slice);
-                        }
+            const obj = eval(`( ${filterString} )`);
+            const accept = [];
+            let index = 0;
+            let sl_fn = obj?.slices ?? ok;
+            filter = function (slices) {
+                for (let slice of slices) {
+                    if (sl_fn(slice, index++)) {
+                        accept.push(slice);
                     }
-                    return nadd;
-                };
-            }
+                }
+                return accept;
+            };
         } catch (e) {
             console.log('filter parse error', e, op.filter);
         }
@@ -38,7 +39,6 @@ class OpLathe extends CamOp {
         let { op, state } = this;
         let { addSlices } = state;
         let filter = createFilter(op);
-
         this.topo = await topo4_generate({
             op,
             state,
diff --git a/src/kiri/mode/cam/prepare.js b/src/kiri/mode/cam/prepare.js
index fac80971..cbeefb87 100644
--- a/src/kiri/mode/cam/prepare.js
+++ b/src/kiri/mode/cam/prepare.js
@@ -973,8 +973,8 @@ export function prepEach(widget, settings, print, firstPoint, update) {
 
 
                     let arcPoints = arcToPath(from, to, arcPreviewRes, { clockwise, center })
-                    .map(applyWidgetMovement);
-                    
+                        .map(applyWidgetMovement);
+
                     // console.log({arcPoints})
 
                     camOut(from, 1);
diff --git a/src/kiri/mode/cam/topo3.js b/src/kiri/mode/cam/topo3.js
index 84a54fce..678cf831 100644
--- a/src/kiri/mode/cam/topo3.js
+++ b/src/kiri/mode/cam/topo3.js
@@ -16,7 +16,7 @@ export class Topo {
 
     async generate(opt = {}) {
         let { state, contour, onupdate, ondone } = opt;
-        let { widget, settings, tshadow, center, tabs, color } = opt.state;
+        let { widget, settings, tshadow, tabs } = opt.state;
 
         let { controller, process } = settings,
             animesh = parseInt(controller.animesh || 100) * 2500,
@@ -177,8 +177,7 @@ export class Topo {
             clipTabZ: clipTab ? clipTab.map(t => t.z) : undefined,
             tabHeight,
             newslices,
-            leave,
-            color
+            leave
         }, (i, l, p) => {
             onupdate(l / 2 + i / 2, l, p);
         });
@@ -304,7 +303,7 @@ export class Topo {
 
         const { minX, maxX, minY, maxY, boundsX, boundsY, stepsX, stepsY } = params;
         const { gridDelta, resolution, density, partOff, toolStep, contourX, contourY } = params;
-        const { clipTo, clipTab, clipTabZ, tabHeight, newslices, color, leave } = params;
+        const { clipTo, clipTab, clipTabZ, tabHeight, newslices, leave } = params;
 
         let stepsTaken = 0,
             stepsTotal = 0;
@@ -370,11 +369,8 @@ export class Topo {
                     gridy
                 }, segments => {
                     if (segments.length > 0) {
-                        let slice = newSlice(gridx);
+                        let slice = newSlice(x);
                         slice.camLines = segments;
-                        slice.output()
-                            .setLayer("contour y", { face: color, line: color })
-                            .addPolys(segments);
                         slicesY.push(slice);
                     }
                     onupdate(++stepsTaken, stepsTotal, "contour y");
@@ -399,11 +395,8 @@ export class Topo {
                     gridy
                 }, segments => {
                     if (segments.length > 0) {
-                        let slice = newSlice(gridy);
+                        let slice = newSlice(y);
                         slice.camLines = segments;
-                        slice.output()
-                            .setLayer("contour x", { face: color, line: color })
-                            .addPolys(segments);
                         slicesX.push(slice);
                     }
                     onupdate(++stepsTaken, stepsTotal, "contour x");
diff --git a/src/kiri/mode/fdm/export.js b/src/kiri/mode/fdm/export.js
index b6768e4b..6b359f56 100644
--- a/src/kiri/mode/fdm/export.js
+++ b/src/kiri/mode/fdm/export.js
@@ -613,6 +613,7 @@ export function fdm_export(print, online, ondone, ondebug) {
         for (pidx=0; pidx<path.length; pidx++) {
             out = path[pidx];
             speedMMM = (out.speed || process.outputFeedrate) * 60; // range
+            fanSpeed = out.fan ?? fanSpeed;
 
             // hint to controller that we're working on a specific object
             // so that gcode between start/stop comments can be cancelled
@@ -685,13 +686,13 @@ export function fdm_export(print, online, ondone, ondebug) {
             }
 
             // in belt mode, fan can change per segment (for base)
-            if (isBelt) {
+            // if (isBelt) {
                 setTempFanSpeed(out.fan);
                 if (fanSpeed !== lastFanSpeed) {
                     appendAllSub(gcodeFan);
                     lastFanSpeed = fanSpeed;
                 }
-            }
+            // }
 
             if (lastp && out.emit) {
                 if (arcDist) {
diff --git a/src/kiri/mode/fdm/prepare.js b/src/kiri/mode/fdm/prepare.js
index 8d560b43..301d47fb 100644
--- a/src/kiri/mode/fdm/prepare.js
+++ b/src/kiri/mode/fdm/prepare.js
@@ -46,8 +46,6 @@ export async function fdm_prepare(widgets, settings, update) {
         output = [],
         layerout = [];
 
-    let lastLayerStart = null;
-
     // compute bounds if missing
     if (!bounds) {
         bounds = new THREE.Box3();
@@ -553,12 +551,9 @@ export async function fdm_prepare(widgets, settings, update) {
                 offset,
                 layerout,
                 {
-                    routeAround: process.outputAvoidGaps,
-                    seedPoint: printPoint.sub(offset),
-                    params, // range parameters
                     first: slice.index === 0,
-                    support: slice.widget.support,
                     onBelt: beltStart,
+                    params, // range parameters
                     pretract: (wipeDist) => {
                         if (!(lastLayer && lastLayer.length)) {
                             return;
@@ -573,7 +568,11 @@ export async function fdm_prepare(widgets, settings, update) {
                                 print.addOutput(lastLayer, endpoint, null, null, lastOut.tool);
                             }
                         }
-                    }
+                    },
+                    routeAround: process.outputAvoidGaps,
+                    seedPoint: printPoint.sub(offset),
+                    support: slice.widget.support,
+                    zmax,
                 }
             );
             layerout.print_time = printPoint.layer_time;
@@ -815,6 +814,7 @@ function slicePrintPath(print, slice, startPoint, offset, output, opt = {}) {
         shellOrder = {"out-in":-1,"in-out":1,"alternate":-2}[process.sliceShellOrder] || -1,
         sparseMult = process.outputSparseMult,
         coastDist = process.outputCoastDist || 0,
+        fanSpeed = process.outputFanSpeed,
         firstShellSpeed = process.firstLayerRate,
         firstFillSpeed = process.firstLayerFillRate,
         firstPrintMult = process.firstLayerPrintMult,
@@ -823,8 +823,10 @@ function slicePrintPath(print, slice, startPoint, offset, output, opt = {}) {
         fillSpeed = opt.speed || opt.fillSpeed || (firstLayer ? firstFillSpeed || firstShellSpeed : process.outputFeedrate),
         infillSpeed = process.sliceFillRate || opt.infillSpeed || fillSpeed || printSpeed,
         moveSpeed = process.outputSeekrate,
+        minSpeed = process.outputMinSpeed,
         origin = startPoint.add(offset),
         zhop = process.zHopDistance || 0,
+        zmax = opt.zmax,
         antiBacklash = process.antiBacklash,
         wipeDist = process.outputRetractWipe || 0,
         isBelt = device.bedBelt,
@@ -862,6 +864,7 @@ function slicePrintPath(print, slice, startPoint, offset, output, opt = {}) {
     // override: adapt bridge layer speed
     if (slice.isBridgeLayer) {
         fillSpeed /= 2;
+        printSpeed /= 2;
     }
 
     // apply first layer extrusion multipliers
@@ -1100,9 +1103,6 @@ function slicePrintPath(print, slice, startPoint, offset, output, opt = {}) {
                 coast: firstLayer ? 0 : coastDist,
                 extrude: numOrDefault(opt.extrude, shellMult),
                 nozzleSize,
-                rate: finishShell ? finishSpeed : printSpeed,
-                scarf,
-                tool: extruder,
                 onfirst: (firstPoint, preout) => {
                     let from = seedPoint || startPoint;
                     if (from.distTo2D(firstPoint) > retractDist) {
@@ -1111,7 +1111,11 @@ function slicePrintPath(print, slice, startPoint, offset, output, opt = {}) {
                         }
                     }
                     seedPoint = null;
-                }
+                },
+                rate: finishShell ? finishSpeed : printSpeed,
+                scarf,
+                tool: extruder,
+                zmax
             });
             lastPoly = slice.lastPoly = poly;
         }
@@ -1600,7 +1604,7 @@ function slicePrintPath(print, slice, startPoint, offset, output, opt = {}) {
     if (minLayerTime && tt < minLayerTime) {
         let fact = tt / minLayerTime;
         for (let p of preout) {
-            if (p.emit) p.speed *= fact;
+            if (p.emit) p.speed = Math.max(p.speed * fact, minSpeed);
         }
     }
 
@@ -1612,6 +1616,12 @@ function slicePrintPath(print, slice, startPoint, offset, output, opt = {}) {
     // add offset points to total print
     print.addPrintPoints(preout, output);
 
+    // bridge layer fan change
+    if (slice.isBridgeLayer) {
+        preout[0].fan = Math.round(fanSpeed / 3);
+        preout.peek().fan = fanSpeed;
+    }
+
     // create next layer start point and annotate
     // with print time for previous layer (hack to
     // avoid changing return signature rn)
diff --git a/src/main/kiri.js b/src/main/kiri.js
index e21a7734..14ec062c 100644
--- a/src/main/kiri.js
+++ b/src/main/kiri.js
@@ -20,6 +20,7 @@ function safeExec(fn) {
 
 function checkReady() {
     if (document.readyState === 'complete') {
+        console.log(`kiri | boot ctrl | ` + (navigator.serviceWorker.controller ? true : false));
         kiri.api = run();
         self.$ = kiri.api.web.$;
         for (let fn of load) {
diff --git a/src/main/service.js b/src/main/service.js
index 6d8af693..80db6047 100644
--- a/src/main/service.js
+++ b/src/main/service.js
@@ -11,8 +11,9 @@ async function start_service_worker() {
     debug('service worker registration');
 
     try {
-        // const reg = await navigator.serviceWorker.register("/src/moto/service.js?013", { scope: "/" });
-        const reg = await navigator.serviceWorker.register("/code/service.js?"+version, { scope: "/" });
+        const reg = await navigator
+            .serviceWorker
+            .register(`/code/service.js?${version}`, { scope: "/" });
         if (reg.installing) {
             debug('service worker installing');
         } else if (reg.waiting) {
@@ -31,4 +32,6 @@ async function start_service_worker() {
     }
 }
 
-if (service_worker && self.enable_service) start_service_worker();
+if (service_worker && self.enable_service) {
+    start_service_worker();
+}
diff --git a/src/moto/license.js b/src/moto/license.js
index 62c0e58c..f3975212 100644
--- a/src/moto/license.js
+++ b/src/moto/license.js
@@ -3,7 +3,7 @@
 const terms = {
     COPYRIGHT: "Copyright (C) Stewart Allen <sa@grid.space> - All Rights Reserved",
     LICENSE: "See the license.md file included with the source distribution",
-    VERSION: "4.3.2"
+    VERSION: "4.3.3"
 };
 
 export const beta = 0;
diff --git a/web/kiri/index.css b/web/kiri/index.css
index 5b39165b..ad3b7705 100644
--- a/web/kiri/index.css
+++ b/web/kiri/index.css
@@ -1375,10 +1375,16 @@ details[open] summary::after {
 }
 #camops {
     display: flex;
-    padding: 5px 0 0 0;
+    padding: 0 0 0 0;
+}
+#oplist {
+    max-height: 70vh;
+    min-height: 0;
+    overflow-y: auto;
+    padding-top: 1px;
 }
 .cam-pop-op {
-    top: 50%;
+    top: 0;
     right: calc(100% + 4px);
     text-align: left;
     position: absolute;
diff --git a/web/kiri/index.html b/web/kiri/index.html
index a72a261a..598e6ad5 100644
--- a/web/kiri/index.html
+++ b/web/kiri/index.html
@@ -420,7 +420,7 @@
                 <div class="set2-group f-col mode-cam">
                     <div class="set-header mode-cam"><a>operation list</a></div>
                     <div id="camops" class="f-col a-stretch grow">
-                        <div id="oplist" class="f-col j-center"></div>
+                        <div id="oplist" class="f-col"></div>
                         <div id="op-add" class="opdiv">
                             <i class="fas fa-plus"></i>
                             <div id="op-add-pop" class="f-col">
@@ -612,8 +612,6 @@
             </div>
         </div>
 
-        <!-- grid local list -->
-        <div id="mod-local" class="mdialog f-col"></div>
         <!-- export dialogs -->
         <div id="mod-x-any" class="mod-print mdialog f-col">
             <div class="f-row gap4">
@@ -667,31 +665,6 @@
                 </div>
                 <div id="oph1nt"><label class="hint"><a href="http://docs.octoprint.org/en/master/api/general.html?highlight=cors#cross-origin-requests" target="_help">CORS support</a> must be enabled in API settings</label></div>
             </div>
-            <div id="send-to-hosthead" class="header"><label>grid:host</label></div>
-            <div id="send-to-gridhost" class="f-col box">
-                <div class="grow f-row">
-                    <div class="f-col grow">
-                        <div><label>host</label><input id="grid-host" size="20" placeholder="http(s)://host:port" /></div>
-                        <div id="gpapik"><label>api key</label><input id="grid-apik" size="20" /></div>
-                        <div><label>target</label><select id="grid-target"></select></div>
-                    </div>
-                    <button id="print-gridhost">send</button>
-                </div>
-                <div><label class="hint">setup <a href="https://github.com/GridSpace/grid-host" target="_help">grid:host</a> for your network</label></div>
-            </div>
-            <div id="send-to-gridhead" class="header noshow"><label>grid:local</label></div>
-            <div id="send-to-gridspool" class="f-row box noshow">
-                <div class="grow f-row">
-                    <div class="grow a-center j-center">
-                        <label>target</label>
-                        <select id="grid-local"></select>
-                    </div>
-                    <div class="f-col">
-                        <button id="print-gridlocal">send</button>
-                        <button id="admin-gridlocal">admin</button>
-                    </div>
-                </div>
-            </div>
         </div>
         <div id="mod-x-sla" class="mod-print mdialog f-col">
             <div class="header"><label>export</label></div>
diff --git a/web/kiri/manifest.json b/web/kiri/manifest.json
index 80b2d2f8..0f24310a 100644
--- a/web/kiri/manifest.json
+++ b/web/kiri/manifest.json
@@ -1,5 +1,5 @@
 {
-    "name": "Kiri:Moto 4.3.2",
+    "name": "Kiri:Moto 4.3.3",
     "short_name": "Kiri:Moto",
     "description": "Slicer for 3D printers, CNC mills, laser cutters and more",
     "start_url": "/kiri/",