GlouGlou wrote: ↑Sat Aug 10, 2019 8:56 am

1.Could you turn projection objects into parametric objects? (following parents objects).

yes, this is the main reason why I have modified your "multisection" example, I wanted to make it fully parametric and stable,

- one problem are the non parametric projections (fixed in my model with extrusions)

- second problem is the non parametric mirror, that I have posted about here

https://forum.freecadweb.org/viewtopic.php?f=8&t=38388
- third is the Curves TrimedFace, its "picked point" does not stay fully parametric, so when you move or rotate the model you get wrong trimmed faces (fixed in my model with facebinder)

Update: Chris_G improved the Curves TrimedFace "picked point", so it should be more stable now

testing FreeCAD with such example models from other fully parametric cad programs and reporting the problems that break the fully parametric workflow or make it too hard, is IMO the best way how we can improve and fix FreeCAD to make it work properly and also for users to learn and start better understanding how to do fully parametric models.