diff --git a/js/kiri-driver-fdm.js b/js/kiri-driver-fdm.js
index 2e3a6c97..701a6536 100644
--- a/js/kiri-driver-fdm.js
+++ b/js/kiri-driver-fdm.js
@@ -334,7 +334,15 @@ var gs_kiri_fdm = exports;
         append(constReplace("; Bed left:{left} right:{right} top:{top} bottom:{bottom}", consts));
         append("; --- startup ---");
         for (var i=0; i<device.gcodePre.length; i++) {
-            append(constReplace(device.gcodePre[i], consts));
+            var line = device.gcodePre[i];
+            if (line.indexOf('E') > 0) {
+                line.split(' ').forEach(function (tok) {
+                    // use max E position from gcode-preamble
+                    if (tok[0] == 'E') outputLength = Math.max(outputLength, parseFloat(tok.substring(1)));
+                });
+            }
+            if (device.extrudeAbs)
+            append(constReplace(line, consts));
         }
 
         function moveTo(newpos, rate, comment) {
diff --git a/js/license.js b/js/license.js
index 6d478808..d9e74048 100644
--- a/js/license.js
+++ b/js/license.js
@@ -1,7 +1,7 @@
 var exports = {
     COPYRIGHT:"Copyright (C) 2014-2017 Stewart Allen <stewart@neuron.com> - All Rights Reserved",
     LICENSE:"Unauthorized copying, modification and re-distribution are strictly prohibited without prior written consent.",
-    VERSION:"1.0.64"
+    VERSION:"1.0.65"
 };
 if (!module) var module = {};
 module.exports = exports;
diff --git a/web/kiri/filter/FDM/Flashforge.Finder b/web/kiri/filter/FDM/Flashforge.Finder
index 945acec8..6a2a4b74 100644
--- a/web/kiri/filter/FDM/Flashforge.Finder
+++ b/web/kiri/filter/FDM/Flashforge.Finder
@@ -1,27 +1,25 @@
 {
     "pre":[
         "M118 X15.00 Y15.00 Z10.00 T0",
-        "M104 S220 T0 ; set nozzle0 temp",
+        "M104 S{temp} T0 ; set nozzle0 temp",
         "M107 ; fan off",
         "G90 ; set absolute positioning",
         "G28 ; move to origin",
         "M132 X Y Z A B ; set axis limits",
-        "G1 Z50.00 F400",
-        "G161 X Y F3300 ; home axis minimum",
-        "M6 T0 ; tool change t0",
+        "M6 T0 ; tool change T0",
         "M907 X100 Y100 Z40 A80 B20 ; set digital trimpots",
         "M108 T0 ; set extruder speed",
-        "M109 S220 T0 ; set temp and wait",
-        "G1 X15.00 Y15.00 F4800 ; preExtrude:0.20",
-        "G1 Z.20 F400 ; preExtruder0"
+        "; pre-extrude",
+        "G1 X-75 Y-75 Z0.35 F400",
+        "G1 X75 E25 F1200",
+        "G1 Y00 E30 F1200"
     ],
     "post":[
+        "M107 ; fan off",
         "M104 S0 T0 ; set nozzle0 temp",
-        "G28 ; move to origin",
-        "; G162 Z ; home axes maximum",
-        "; G28 X Y ; move to origin",
-        "; M132 X Y Z A B ; set axis limits",
-        "G91 ; set relative positioning",
+        "G162 Z ; home axes maximum",
+        "G28 X Y ; move to origin",
+        "M132 X Y Z A B ; set axis limits",
         "M18 ; disable all steppers"
     ],
     "cmd":{