realthunder wrote: ↑
Mon Feb 10, 2020 10:41 pm
cos4 wrote: ↑
Fri Feb 07, 2020 7:02 pm
Is there something similar to the "Direction" dialog of a2plus? I find the option to "flip direction" very useful.
You can change the 'Offset' property in either the element object under the constraint, or under the element group. It is a placement in the element local coordinate. If you change it under element group, it will affect all constraint that uses this element.
One thing to note though, because the way SolveSpace works, plane coincident constraint does not care about plane orientation. Meaning that it will snap either way. You'll have to use other constraint to fix it. Or, maybe you can consider other type of constraint, like the 'Placement' constraint, which coincide two elements exactly, without going through the solver.
When using the excellent introduction from @jpg87 (excellent job!) one step is to assembly an axis with two wheels (http://help-freecad-jpg87.fr/0251_ass_e ... ssieux.php
) I am stuck with that issue.
After attaching the first wheel fine, the other always attached the wrong way. The two wheels need to attach mirrored. I tried many different constaints but I always end up with the alignment in the orientation as in the image above.
How can I solve this purely by constraints (I now that manually pre-aligning the wheel works)?
I think something like "PlaneCoincident" plus another acting like "Normals Align" or "Normal Perpendicular" would work. But I can't get it to work.
What is the best way to get this wheel to attach the other way around (without manually aligning it)?
Two more questions came up:
* What is the proper way to delete constraints?
When I had the axis together I deleted the constraints and wanted to do it again. But the parts could not be moved, the constraints still seemed to be in place. I did the file again, this time I disabled the constraint and then deleted it. That seemd to work. Is that the proper procedure?
* Is there a workaround to re-do(=re-assign) a constraint by selecting different faces/edges/vertices?
I saw realthunders video where he changed the one part of an assembly by recreating matching Elements, but thats a different use case.