Today was able to make a flexible spring tied to 2 assembly parts using the direct driving dimension in the spring tied to "distance" in the flexible dialog from the component placement dialog. The spring is tied between 2 pins and flexes in length and adjust its angle according to the mated components. Finally! ... got one thing to work as expected. Why I can't drive parameters this way is beyond me.
Expansion spring looped on grooved pin.
- Coincident axis of pin 1 to axis on spring (adjusted for tangency; not constrained tangent)
- Lengthwise plane of spring coincident to the axis of pin 2 (to accommodate tilt)
- Distance between the hooks of the spring set to "distance" between the two pin axes drives the spring length dimension.
Some visual aides...
No family table instances in the spring; no part duplication in the assembly; will follow assembly family tables for use in drawings.