Hi. Is there any scrip for exporting whole groups as stl?
I am working in 3D printing domain and we usually have buildings to 3D print floor by floor.
When i design the part it’s easier to make separate layers and objects for different elements,
I group them and then i export each one as a stl. This way Prusa Slicer sees the group as a single solid.
I cound’t find a script that does this, that exports GROUPS as separate STL files. And the name of the file to be the name of the group, cuz i always name them.
Hi Mahneca,
The below script is simple version that might work for you.
Let me know if you have any questions
EDIT: updated the script to allow folders with spaces and export only selected groups
EDIT: updated the script to allow for setting stl options
export_groups.py (1.6 KB)
import rhinoscriptsyntax as rs
import os
def export_group(folder,group):
rs.UnselectAllObjects()
objects = rs.ObjectsByGroup(group)
if not objects:
return
rs.SelectObjects(objects)
stl_file = os.path.join(folder,group+'.stl')
comm_string = """
_-Export "{}"
ExportFileAs=ASCII ExportUnfinishedObjects=Yes
UseSimpleDialog=No Enter DetailedOptions
JaggedSeams=No PackTextures=Yes Refine=Yes SimplePlane=Yes
AdvancedOptions
Angle=20
AspectRatio=6
Distance=0.001
Density=0
Grid=0
MaxEdgeLength=0
MinEdgeLength=0.0001
SubdivisionLevel=4
SubdivisionContext=Absolute
EnterEnd
"""
rs.Command(comm_string.format(stl_file))
rs.UnselectAllObjects()
def export_groups():
folder = rs.BrowseForFolder('folder for export')
if not folder:
return
objects = rs.GetObjects('select groups to export')
if not objects:
return
group_names = set()
for obj_id in objects:
group_names.update(rs.ObjectGroups(obj_id))
rs.EnableRedraw(False)
for group_name in rs.GroupNames():
if group_name in group_names:
export_group(folder,group_name)
rs.EnableRedraw(True)
if __name__ == '__main__':
export_groups()
1 Like
It works 90 %. It let’s me chose the location of the export but it only work when i chose to export in the folder where the script is saved, for some reason…
hmmm… It does work for another folder here.
Could it be you have no write permission on the selected folder.
Also what messages appear in the commandline, there the export of the stl’s is echoed including possible issues.
-Willem
This is the text in command bar.
Command: RunPythonScript
Command: _-Export
Save file name ( Version=7 SaveSmall=No GeometryOnly=No SaveTextures=Yes SaveNotes=No SavePlugInData=Yes Browse ): X:\Documents\13\I
File successfully saved as Rhino 7 file X:\Documents\13\I.3dm.
Command: Residence\Print
Unknown command: Residence\Print
Command: _-Export
Save file name ( Version=7 SaveSmall=No GeometryOnly=No SaveTextures=Yes SaveNotes=No SavePlugInData=Yes Browse ): X:\Documents\13\I
File successfully saved as Rhino 7 file X:\Documents\13\I.3dm.
Command: Residence\Print
Unknown command: Residence\Print
Command: _-Export
Save file name ( Version=7 SaveSmall=No GeometryOnly=No SaveTextures=Yes SaveNotes=No SavePlugInData=Yes Browse ): X:\Documents\13\I
File successfully saved as Rhino 7 file X:\Documents\13\I.3dm.
Command: Residence\Print
Unknown command: Residence\Print
For some reason it’s making a save in a Parent Folder of containing only one of the groups (I.3dm.) . But there is no stl anywhere. If i let the destination file to be the one in witch i have the scrip, it works :
Command: _-Export
Save file name ( Version=7 SaveSmall=No GeometryOnly=No SaveTextures=Yes SaveNotes=No SavePlugInData=Yes Browse ): X:\Shit\Rhino\1.stl
Choose STL option ( ExportFileAs=Binary ExportUnfinishedObjects=Yes UseSimpleDialog=No ): _Enter
Choose STL option ( ExportFileAs=Binary ExportUnfinishedObjects=Yes UseSimpleDialog=No )
Choose meshing option ( DetailedOptions PolygonDensity=50 ): DetailedOptions
Choose detailed option ( AdvancedOptions JaggedSeams=No PackTextures=Yes Refine=Yes SimplePlane=No ): PackTextures=No
Choose detailed option ( AdvancedOptions JaggedSeams=No PackTextures=No Refine=Yes SimplePlane=No )
Created a mesh with 88 points and 38 polygons.
Created a mesh with 104 points and 84 polygons.
Created a mesh with 204 points and 172 polygons.
Created a mesh with 95 points and 76 polygons.
Created a mesh with 200 points and 141 polygons.
Created a mesh with 200 points and 142 polygons.
Created a mesh with 115 points and 100 polygons.
Created a mesh with 106 points and 84 polygons.
Created a mesh with 124 points and 89 polygons.
Created a mesh with 1049 points and 1200 polygons.
Created a mesh with 152 points and 122 polygons.
Created a mesh with 200 points and 143 polygons.
Created a mesh with 110 points and 91 polygons.
Meshing… Press Esc to cancel
File successfully saved as X:\Shit\Rhino\1.stl.
Another problem is that it takes all the groups in the file. And i usually have more de 100 , and only 20 i want to export. This …examination and exporting of every group is crashing the program.
If only i could export only the selected ones or something.
Hi Mahneca,
There was a bug that did not allow folders with spaces in it.
I also added the selection of groups to export to allow for only a subset of groups to be exported
That is fixed in the edited post above:
Does this work better?
-Willen
Works like a charm now. It’s exacly what i needed.Thank you!!
1 Like
Hi,
A new small problem emerged. When exporting, it’s using a low detail level, not the default i have set. Because i print small parts, i always use a 0.001 tolerance, but the script is using a bigger one. Is there a way so change that?
Thanks.
