Macro 3d Printer Slicer

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Revision as of 20:55, 9 October 2013 by Cae2100 (talk | contribs)
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32px Export to slicing software for 3D printers

Description
Exports stl file in the same directory as original design file, then opens it in slicing software.

Author
cae2100
Download
None
Links
Macro Version
1.0
Date last modification
None
FreeCAD Version(s)
None
Default shortcut
None
See also
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This code, when run, will export the currently open design to STL file, and open it in the slicing software that you use. This example is for KISSlicer, but can be modified to use Slic3r, cura, or any other 3d printer software. It can also be modified slightly to open up CAM software for CNC machines.

The SLICER varable can be changed to any slicing software of your choosing, just make sure to change it before you try running it or it'll flag an error.


   import FreeCAD
   import Mesh
   import sys
   import math
   import os
   import subprocess
   # some fuctions
   def getPlacement(quat,vect,obj):
     if quat[3] > -1  and quat[3] < 1:
       delta = math.acos(quat[3])*2.0
       scale = math.sin(delta/2)
       rx = quat[0]/scale
       ry = quat[1]/scale
       rz = quat[2]/scale
     else:
       delta = 0
       rx = 0
       ry = 0
       rz = 1
     info0 = "translation "+str(vect.x)+" "+str(vect.y)+" "+str(vect.z)
     info1 = "rotation "+str(rx)+" "+str(ry)+" "+str(rz)+" "+str(delta)
     return info0+" "+info1
   # some definitions
   placement = App.Placement(App.Vector(0,0,0),App.Rotation(0,0,0,1))
   # user need to set this directory where STL files will be placed
   OutDir = FreeCAD.ActiveDocument.FileName.replace(FreeCAD.ActiveDocument.Label + ".fcstd", "")
   visible_objs = []
   SLICER = "/kisslicer location/"                          # Put your Slicer program location here
   os.chdir(SLICER)
   # Get Objects in document
   doc = App.ActiveDocument
   objs = doc.Objects
   # hide all
   for obj in objs:
      if obj.ViewObject.isVisible():
         visible_objs.append(obj)
   print "number of volumes "+str(len(visible_objs))
   for obj in visible_objs:
   # {
     # get volume
     volume = obj.Shape.Volume
     # get Rotation and translation of volume
     quat = obj.Placement.Rotation.Q
     vect = obj.Placement.Base
     pinfo = getPlacement(quat,vect,obj)
     # reset placement, export it and set at original placement
     oldPlacement = obj.Placement
     obj.Placement = placement
     obj.Placement = oldPlacement   
   stlFile = OutDir+str(doc.Label)+".stl"
   Mesh.export(visible_objs,stlFile)
   subprocess.Popen([SLICER + "KISSlicer", stlFile])