[Problem] CAM: 3D Surface, with Optimise StepOver Transitions enabled, doesn't calculate any path above StartDepth-Stepdown

[acp693]

Is there an existing issue for this?

• I have searched the existing issues

Forums discussion

https://forum.freecad.org/viewtopic.php?f=15&t=74153

Version

0.21 (Development)

Full version info

OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 0.21.31109 (Git)
Build type: Release
Branch: master
Hash: c23ee7ad88433a0f00e84afae0a62fe738be0c09
Python 3.10.8, Qt 5.15.4, Coin 4.0.0, Vtk 9.1.0, OCC 7.6.3
Locale: German/Germany (de_DE)
Installed mods: 
  * CurvedShapes 1.0.4
  * Curves 0.5.3
  * FeedsAndSpeeds 0.4.0
  * Marz 0.0.26-alpha
  * Silk 1.0.0

Subproject(s) affected?

Path

Issue description

In 3D Surface, when calculating a multi-pass path, with 'Optimize StepOver Transitions' enabled, everything above the height StartDepth-StepDown is ignored. Pleas see attached model.

Anything else?

TestOptimizeStepOverTransitions.zip

Code of Conduct

• I agree to follow this project's Code of Conduct

[acp693]

@Dimitrios2 wrote the following on the above linked forum thread about this issue:

It appears that the first step down mast be excluded of the optimization.

replace the following lines form file /Path/Op/Surface.py

line 1689 and 1710 ( At least in my file )
if optLinTrans is True:
with
if optLinTrans is True and layDep != (obj.OpStartDepth.Value - obj.StepDown.Value):

line 1837 ( At least in my file )
if obj.OptimizeStepOverTransitions:
with
if obj.OptimizeStepOverTransitions and p2.z != (obj.OpStartDepth.Value - obj.StepDown.Value):

I tried his code and it seems to be working as expected. Further testing by others would be recommended