diff --git a/package.json b/package.json
index 8208076a..71955ab4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "grid-apps",
-    "version": "3.5.4D",
+    "version": "3.5.5D",
     "description": "grid.space 3d slice & modeling tools",
     "author": "Stewart Allen <sa@grid.space>",
     "license": "MIT",
diff --git a/src/kiri-mode/fdm/prepare.js b/src/kiri-mode/fdm/prepare.js
index f0d07002..cd46a780 100644
--- a/src/kiri-mode/fdm/prepare.js
+++ b/src/kiri-mode/fdm/prepare.js
@@ -57,6 +57,8 @@ FDM.prepare = function(widgets, settings, update) {
         output = [],
         layerout = [];
 
+    let lastLayerStart = null;
+
     // compute bounds if missing
     if (!bounds) {
         bounds = new THREE.Box3();
@@ -1370,6 +1372,8 @@ function slicePrintPath(print, slice, startPoint, offset, output, opt = {}) {
 
             // control of layer start point
             switch (process.sliceLayerStart) {
+                case "last":
+                    break;
                 case "center":
                     startPoint = newPoint(0,0,startPoint.z);
                     break;
diff --git a/src/main/kiri.js b/src/main/kiri.js
index 7d64f1ff..d1818206 100644
--- a/src/main/kiri.js
+++ b/src/main/kiri.js
@@ -15,7 +15,7 @@ gapp.main("main.kiri", [], (root) => {
     const modfns = root.kirimod = ( root.kirimod || [] );
 
     const kiri = root.kiri = {
-        beta: 3504,
+        beta: 3505,
         driver: {}, // driver modules
         load(fn) {
             modfns.push(fn);
diff --git a/src/moto/license.js b/src/moto/license.js
index 084ea31c..ed3f382e 100644
--- a/src/moto/license.js
+++ b/src/moto/license.js
@@ -5,7 +5,7 @@
     let terms = {
         COPYRIGHT: "Copyright (C) Stewart Allen <sa@grid.space> - All Rights Reserved",
         LICENSE: "See the license.md file included with the source distribution",
-        VERSION: (is_self ? self : this).debug_version || "3.5.D4"
+        VERSION: (is_self ? self : this).debug_version || "3.5.D5"
     };
 
     if (typeof(module) === 'object') {