diff --git a/src/kiri-mode/cam/animate.js b/src/kiri-mode/cam/animate.js
index 45983253..19746bb9 100644
--- a/src/kiri-mode/cam/animate.js
+++ b/src/kiri-mode/cam/animate.js
@@ -3,6 +3,7 @@
 "use strict";
 
 // dep: kiri-mode.cam.driver
+// dep: kiri-mode.cam.animate2
 gapp.register("kiri-mode.cam.animate", [], (root, exports) => {
 
 const { kiri } = root;
@@ -10,6 +11,7 @@ const { driver } = kiri;
 const { CAM } = driver;
 const asLines = false;
 const asPoints = false;
+const defer = true;
 
 let meshes = {},
     unitScale = 1,
@@ -29,7 +31,7 @@ let meshes = {},
 // ---( CLIENT FUNCTIONS )---
 
 kiri.load(() => {
-    if (!kiri.client) {
+    if (!kiri.client || defer) {
         return;
     }
 
@@ -264,7 +266,7 @@ kiri.load(() => {
 // ---( WORKER FUNCTIONS )---
 
 kiri.load(() => {
-    if (!kiri.worker) {
+    if (!kiri.worker || defer) {
         return;
     }
 
diff --git a/src/kiri-mode/cam/animate2.js b/src/kiri-mode/cam/animate2.js
new file mode 100644
index 00000000..9f237dfd
--- /dev/null
+++ b/src/kiri-mode/cam/animate2.js
@@ -0,0 +1,470 @@
+/** Copyright Stewart Allen <sa@grid.space> -- All Rights Reserved */
+
+"use strict";
+
+// dep: geo.csg
+// dep: kiri-mode.cam.driver
+gapp.register("kiri-mode.cam.animate2", [], (root) => {
+
+const { kiri } = root;
+const { driver } = kiri;
+const { CAM } = driver;
+
+let meshes = {},
+    unitScale = 1,
+    progress,
+    speedValues = [ 1, 2, 4, 8, 32 ],
+    speedPauses = [ 30, 20, 10, 5, 0 ],
+    speedNames = [ "1x", "2x", "4x", "8x", "!!" ],
+    speedMax = speedValues.length - 1,
+    speedIndex = 0,
+    speedLabel,
+    speed,
+    color = 0,
+    pauseButton,
+    playButton;
+
+// ---( CLIENT FUNCTIONS )---
+
+kiri.load(() => {
+    if (!kiri.client) {
+        return;
+    }
+
+    const { moto } = root;
+    const { space } = moto;
+    const { api } = kiri;
+
+    function animate_clear(api) {
+        moto.space.platform.showGridBelow(true);
+        kiri.client.animate_cleanup();
+        $('layer-animate').innerHTML = '';
+        $('layer-toolpos').innerHTML = '';
+        Object.keys(meshes).forEach(id => deleteMesh(id));
+    }
+
+    function animate(api, delay) {
+        let alert = api.alerts.show("building animation");
+        kiri.client.animate_setup(api.conf.get(), data => {
+            checkMeshCommands(data);
+            if (!(data && data.mesh_add)) {
+                return;
+            }
+            const UC = api.uc;
+            const layer = $('layer-animate');
+            layer.innerHTML = '';
+            UC.setGroup(layer);
+            UC.newRow([
+                UC.newButton(null,replay,{icon:'<i class="fas fa-fast-backward"></i>',title:"restart"}),
+                playButton = UC.newButton(null,play,{icon:'<i class="fas fa-play"></i>',title:"play"}),
+                pauseButton = UC.newButton(null,pause,{icon:'<i class="fas fa-pause"></i>',title:"pause"}),
+                UC.newButton(null,step,{icon:'<i class="fas fa-step-forward"></i>',title:"single step"}),
+                UC.newButton(null,fast,{icon:'<i class="fas fa-forward"></i>',title:"toggle speed"}),
+                speedLabel = UC.newLabel("speed", {class:"speed"}),
+                progress = UC.newLabel('0%', {class:"progress"})
+            ]);
+            updateSpeed();
+            setTimeout(step, delay || 0);
+            const toolpos = $('layer-toolpos');
+            toolpos.innerHTML = '';
+            UC.setGroup(toolpos);
+            playButton.style.display = '';
+            pauseButton.style.display = 'none';
+            api.event.emit('animate', 'CAM');
+            api.alerts.hide(alert);
+            moto.space.platform.showGridBelow(false);
+            $('render-hide').onclick();
+        });
+    }
+
+    gapp.overlay(kiri.client, {
+        animate(data, ondone) {
+            kiri.client.send("animate", data, ondone);
+        },
+
+        animate_setup(settings, ondone) {
+            color = settings.controller.dark ? 0x888888 : 0;
+            unitScale = settings.controller.units === 'in' ? 1/25.4 : 1;
+            kiri.client.send("animate_setup", {settings}, ondone);
+        },
+
+        animate_cleanup(data, ondone) {
+            kiri.client.send("animate_cleanup", data, ondone);
+        }
+    });
+
+    gapp.overlay(CAM, {
+        animate,
+        animate_clear
+    });
+
+    function meshAdd(id, ind, pos) {
+        const geo = new THREE.BufferGeometry();
+        // these arrive as shared array buffers
+        // pos = new Float32Array(pos);
+        // ind = new Uint32Array(ind);
+        geo.setAttribute('position', new THREE.BufferAttribute(pos, 3));
+        geo.setIndex(new THREE.BufferAttribute(ind, 1));
+        const mat = new THREE.MeshMatcapMaterial({
+            flatShading: true,
+            transparent: true,
+            opacity: 0.9,
+            color: 0x888888,
+            side: THREE.DoubleSide
+        });
+        const mesh = new THREE.Mesh(geo, mat);
+        space.world.add(mesh);
+        meshes[id] = mesh;
+    }
+
+    function meshUpdate(id, ind, pos) {
+        const mesh = meshes[id];
+        if (!mesh) {
+            return; // animate cancelled
+        }
+console.log({update: id, ind, pos});
+        const geo = mesh.geometry;
+        if (ind) geo.setAttribute('position', new THREE.BufferAttribute(pos, 3));
+        if (pos) geo.setIndex(new THREE.BufferAttribute(ind, 1));
+        geo.attributes.position.needsUpdate = true;
+        geo.index.needsUpdate = true;
+        space.update();
+    }
+
+    function deleteMesh(id) {
+        space.world.remove(meshes[id]);
+        delete meshes[id];
+    }
+
+    function step() {
+        updateSpeed();
+        kiri.client.animate({speed, steps: 1}, handleGridUpdate);
+    }
+
+    function play(opts) {
+        const { steps } = opts;
+        updateSpeed();
+        if (steps !== 1) {
+            playButton.style.display = 'none';
+            pauseButton.style.display = '';
+            $('render-hide').onclick();
+        }
+        kiri.client.animate({
+            speed,
+            steps: steps || Infinity,
+            pause: speedPauses[speedIndex]
+        }, handleGridUpdate);
+    }
+
+    function fast(opts) {
+        const { steps } = opts;
+        updateSpeed(1);
+        playButton.style.display = 'none';
+        pauseButton.style.display = '';
+        $('render-hide').onclick();
+        kiri.client.animate({
+            speed,
+            steps: steps || Infinity,
+            pause: speedPauses[speedIndex]
+        }, handleGridUpdate);
+    }
+
+    function pause() {
+        playButton.style.display = '';
+        pauseButton.style.display = 'none';
+        kiri.client.animate({speed: 0}, handleGridUpdate);
+    }
+
+    function handleGridUpdate(data) {
+        checkMeshCommands(data);
+        if (data && data.progress) {
+            progress.innerText = (data.progress * 100).toFixed(1) + '%'
+        }
+    }
+
+    function updateSpeed(inc = 0) {
+        if (inc === Infinity) {
+            speedIndex = speedMax;
+        } else if (inc > 0) {
+            speedIndex = (speedIndex + inc) % speedValues.length;
+        }
+        speed = speedValues[speedIndex];
+        speedLabel.innerText = speedNames[speedIndex];
+    }
+
+    function replay() {
+        CAM.animate_clear(api);
+        setTimeout(() => {
+            CAM.animate(api, 50);
+        }, 250);
+    }
+
+    function checkMeshCommands(data) {
+        if (!data) {
+            return;
+        }
+        if (data.mesh_add) {
+            const { id, ind, pos } = data.mesh_add;
+            meshAdd(id, ind, pos);
+            space.refresh();
+        }
+        if (data.mesh_del) {
+            deleteMesh(data.mesh_del);
+        }
+        if (data.mesh_move) {
+            const { id, pos } = data.mesh_move;
+            const mesh = meshes[id];
+            if (mesh) {
+                mesh.position.x = pos.x;
+                mesh.position.y = pos.y;
+                mesh.position.z = pos.z;
+                space.update();
+            }
+        }
+        if (data.mesh_update) {
+            meshUpdate(data.id, data.ind, data.pos);
+        }
+    }
+
+});
+
+// ---( WORKER FUNCTIONS )---
+
+kiri.load(() => {
+    if (!kiri.worker) {
+        return;
+    }
+
+    let stock, center, rez;
+    let path, pathIndex, tool, tools, last, toolID = 1;
+    let toolMesh, stockMesh;
+
+    kiri.worker.animate_setup = function(data, send) {
+        const { settings } = data;
+        const { process } = settings;
+        const print = worker.print;
+        const density = parseInt(settings.controller.animesh) * 1000;
+
+        unitScale = settings.controller.units === 'in' ? 1/25.4 : 1;
+        pathIndex = 0;
+        path = print.output.flat();
+        tools = settings.tools;
+        stock = settings.stock;
+        rez = 1/Math.sqrt(density/(stock.x * stock.y));
+
+        stockMesh = createStock(stock.x, stock.y, stock.z);
+        const offset = {
+            x: process.outputOriginCenter ? 0 : stock.x / 2,
+            y: process.outputOriginCenter ? 0 : stock.y / 2,
+            z: process.camOriginTop ? -stock.z : 0
+        }
+
+        tool = null;
+        last = null;
+        animating = false;
+        animateClear = false;
+
+        center = Object.assign({}, stock.center);
+        center.z -= stock.z / 2;
+
+        // shared array buffers are not transferrable
+        send.data({ mesh_add: { id: 0, ind: stockMesh.index, pos: stockMesh.vertex } }, [ ]);
+        send.data({ mesh_move: { id: 0, pos: center } });
+        send.done();
+    };
+
+    kiri.worker.animate = function(data, send) {
+        renderPause = data.pause || renderPause;
+        renderSpeed = data.speed || 0;
+        if (animating) {
+            return send.done();
+        }
+        renderSteps = data.steps || 1;
+        renderDone = false;
+        animating = renderSpeed > 0;
+        renderPath(send);
+    };
+
+    kiri.worker.animate_cleanup = function(data, send) {
+        if (animating) {
+            animateClear = true;
+        }
+    };
+
+    function createStock(x, y, z) {
+        const mesh = Module.cube([x,y,z], true).translate(0, 0, z/2);
+        const { vertex, index } = mesh.getMesh({ normal: () => undefined });
+        return { mesh, vertex, index };
+    }
+
+    function updateStock(rec) {
+        const mesh = rec.mesh;
+        const { index, vertex } = mesh.getMesh({ normal: () => undefined });
+        rec.index = index;
+        rec.vertex = vertex;
+        return rec;
+    }
+
+    let animateClear = false;
+    let animating = false;
+    let renderDist = 0;
+    let renderDone = false;
+    let renderPause = 10;
+    let renderSteps = 0;
+    let renderSpeed = 0;
+    let toolUpdate;
+
+    // send latest tool position and progress bar
+    function renderUpdate(send) {
+        if (toolUpdate) {
+            send.data(toolUpdate);
+        }
+        const { index, vertex } = updateStock(stockMesh);
+        send.data({
+            progress: pathIndex / path.length,
+            id: 0,
+            ind: index,
+            pos: vertex,
+            mesh_update: 1
+        });
+    }
+
+    function renderPath(send) {
+        if (renderDone) {
+            return;
+        }
+
+        if (renderSteps-- === 0) {
+            animating = false;
+            renderPath(send);
+            return;
+        }
+
+        if (animating === false || animateClear || renderSpeed === 0) {
+            renderUpdate(send);
+            renderDone = true;
+            animating = false;
+            animateClear = false;
+            send.done();
+            return;
+        }
+
+        let next = path[pathIndex];
+        while (next && next.type === 'laser') {
+            last = next;
+            next = path[++pathIndex];
+        }
+
+        if (!next) {
+            animating = false;
+            renderPath(send);
+            return;
+        }
+        pathIndex++;
+
+        if (next.tool >= 0 && (!tool || tool.getNumber() !== next.tool)) {
+            // on real tool change, go to safe Z first
+            if (tool && last.point) {
+                let pos = last.point = {
+                    x: last.point.x,
+                    y: last.point.y,
+                    z: stock.z
+                };
+                toolMove(pos);
+                send.data(toolUpdate);
+                // send.data({ mesh_move: { toolID, pos }});
+            }
+            updateTool(next.tool, send);
+        }
+
+        const id = toolID;
+        const rezstep = 1;//rez;
+        if (last) {
+            const lp = last.point, np = next.point;
+            last = next;
+            // dwell ops have no point
+            if (!np || !lp) {
+                return renderPath(send);
+            }
+            const dx = np.x - lp.x, dy = np.y - lp.y, dz = np.z - lp.z;
+            const dist = Math.sqrt(dx*dx  + dy*dy + dz*dz);
+            renderDist += dist;
+
+            // skip moves that are less than grid resolution
+            if (renderDist < rezstep) {
+                renderPath(send);
+                return;
+            }
+
+            const md = Math.max(Math.abs(dx), Math.abs(dy), Math.abs(dz));
+            const st = Math.ceil(md / rezstep);
+            const mx = dx / st, my = dy / st, mz = dz / st;
+            const moves = [];
+            for (let i=0, x=lp.x, y=lp.y, z=lp.z; i<st; i++) {
+                moves.push({x,y,z});
+                x += mx;
+                y += my;
+                z += mz;
+            }
+            moves.push(next.point);
+            renderMoves(id, moves, send);
+        } else {
+            last = next;
+            if (tool) {
+                toolMove(next.point);
+            }
+            renderPath(send);
+        }
+    }
+
+    function toolMove(pos) {
+        const lpos = tool.pos || { x:0, y:0, z:0 };
+        tool.pos = pos;
+        toolUpdate = { mesh_move: { id: toolID, pos }};
+        const delta = [ pos.x - lpos.x, pos.y - lpos.y, pos.z - lpos.z ];
+        const oldmesh = toolMesh.mesh;
+        toolMesh.mesh = toolMesh.mesh.translate(pos.x - lpos.x, pos.y - lpos.y, pos.z - lpos.z);
+        oldmesh.delete();
+    }
+
+    function renderMoves(id, moves, send, seed = 0) {
+        for (let index = seed; index<moves.length; index++) {
+            const pos = moves[index];
+            if (!pos) {
+                throw `no pos @ ${index} of ${moves.length}`;
+            }
+            toolMove(pos);
+            const oldmesh = stockMesh.mesh;
+            stockMesh.mesh = stockMesh.mesh.subtract(toolMesh.mesh);
+            oldmesh.delete();
+            // pause renderer at specified offsets
+            if (renderSpeed && renderDist >= renderSpeed) {
+                renderDist = 0;
+                renderUpdate(send);
+                setTimeout(() => {
+                    renderMoves(id, moves, send, index);
+                }, renderPause);
+                return;
+            }
+        }
+        renderPath(send);
+    }
+
+    // generate tool mesh and send to client
+    function updateTool(toolnum, send) {
+        if (tool) {
+            send.data({ mesh_del: toolID });
+        }
+        tool = new CAM.Tool({ tools }, undefined, toolnum);
+        const flen = tool.fluteLength() || 15;
+        const slen = tool.shaftLength() || 15;
+        const frad = tool.fluteDiameter() / 2;
+        const mesh = Module.cylinder(flen + slen, frad, frad, 20, true).translate(0, 0, (flen + slen)/2);
+        const { vertex, index } = mesh.getMesh({ normal: () => undefined });
+        toolMesh = { mesh, index, vertex };
+        send.data({ mesh_add: { id:++toolID, ind: index, pos: vertex }});
+    }
+
+});
+
+});