difficulties with 3d surface

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dkwvt
Posts: 66
Joined: Sat Oct 16, 2021 10:26 pm

difficulties with 3d surface

Post by dkwvt »

Hi All, I'm having a problem getting a toolpath on a gordon surface. I'm not sure it is path related but this is the place I'm getting the error message. The 3d surface menus all seem to function smoothly until I reach the last "ok" in the menu process to generate a toolpath and this is the error message. I've attached the file and a screenshot of the error message as well.

Thank You for looking at this!

[<class 'TypeError'>: list indices must be integers or slices, not NoneType
14:42:14 Recompute failed! Please check report view.]

Code: Select all

OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 0.20.29177 (Git)
Build type: Release
Branch: releases/FreeCAD-0-20
Hash: 68e337670e227889217652ddac593c93b5e8dc94
Python 3.8.10, Qt 5.15.2, Coin 4.0.1, Vtk 8.2.0, OCC 7.6.2
Locale: English/United States (en_US)
Installed mods: 
  * Curves 0.3.0
  * OCL
  * ocl.pyd
Attachments
AT17 cca frame pm.FCStd
(375.58 KiB) Downloaded 16 times
Screenshot (1).png
Screenshot (1).png (218.66 KiB) Viewed 794 times
agren
Posts: 40
Joined: Sat Apr 20, 2019 7:37 am

Re: difficulties with 3d surface

Post by agren »

Try using the face from the model instead of from the gordon surface.
2022-06-16.png
2022-06-16.png (58.58 KiB) Viewed 768 times
agren
Posts: 40
Joined: Sat Apr 20, 2019 7:37 am

Re: difficulties with 3d surface

Post by agren »

Note: It might take quite a while to finish the operation.
To get the result above within 5 minutes I set Job->Geometry Tolerance to 5 mm and the Sample Interval to 10 mm.

Edit: Step Over -> Sample Interval
dkwvt
Posts: 66
Joined: Sat Oct 16, 2021 10:26 pm

Re: difficulties with 3d surface

Post by dkwvt »

Thank You agren, I made some progress today but I'm still not getting a toolpath.
I was able to identify and select the model face and I increased both geometry tolerance and job interval to 1/2" to create some breathing room.
The menu functionality seemed ok and the program appeared to be working to generate a toolpath with no error messages. [screenshot 2]
1 hr later with the blue processing orb still spinning the computer went into sleep mode and Freecad shut down w/o saving any visible toolpath.
After restarting freecad it went into file recovery [screenshot 3] and the job was still in the part tree but nothing else. [screen shot 4]
I'm stumped...!
thanks, dkw
Attachments
Screenshot (2).png
Screenshot (2).png (229.67 KiB) Viewed 680 times
Screenshot (4).png
Screenshot (4).png (234.9 KiB) Viewed 680 times
Screenshot (3).png
Screenshot (3).png (205.38 KiB) Viewed 680 times
dkwvt
Posts: 66
Joined: Sat Oct 16, 2021 10:26 pm

Re: difficulties with 3d surface

Post by dkwvt »

I got it!
After several failed trials, same results (time out and crash) on two other computers I uninstalled all versions of freecad, reinstalled v20, checked for all the experimental features, ocl and appropriate checkboxes, reloaded the file, went to path and got an error message about the units selection requiring a distance/time component. This was the first time I had seen this, changed to the appropriate mm/min and all is well.
Thanks, dkw
Attachments
Screenshot (2).png
Screenshot (2).png (188.4 KiB) Viewed 610 times
Screenshot (1).png
Screenshot (1).png (175.36 KiB) Viewed 610 times
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