diff --git a/src/kiri-dev/cam/Sienci.LongMill b/src/kiri-dev/cam/Sienci.LongMill
index cfb261ea..6e4d0fff 100644
--- a/src/kiri-dev/cam/Sienci.LongMill
+++ b/src/kiri-dev/cam/Sienci.LongMill
@@ -1,14 +1,16 @@
 {
     "file-ext": "nc",
     "token-space": " ",
-    "strip-comments": true,
+    "strip-comments": false,
     "pre":[
         "G21 ; set units to MM (required)",
         "G90 ; absolute position mode (required)",
-        "G0 F6000 ; default rapid move speed",
+        "G0 F4000 ; default rapid move speed",
         "G1 F1500 ; default cutting speed"
     ],
     "post":[
+        "M5  ; spindle off",
+        "M9  ; coolant off",
         "M30 ; program end"
     ],
     "tool-change":[
@@ -21,7 +23,8 @@
         "image_url": "/decal/longmill.png",
         "image_scale": 200,
         "image_anchor": 8,
-        "bed_width": 760,
-        "bed_depth": 760
+        "bed_width": 770,
+        "bed_depth": 820,
+        "build_height": 110
     }
 }