sjam986 wrote: ↑
Wed Jun 03, 2020 8:08 am
classical FreeCAD topological naming problem.
The good way to do that is to create an LCS that will be rotating w.r.t. the fixed engine (attach the LCS to the fixed one, and in the AttachmentOffset set the angle to the variable that drives the angle). Then, attach the crankshaft to the rotating LCS. Also, attach a sketch to the rotating LCS, and draw there a single line. Then, in the sketch drawing the piston movement, import as an external reference the line from the rotating sketch, and do your drawing.
https://forum.freecadweb.org/viewtopic. ... 06#p293179