How to make wheel/pin slide (not roll) along curve/surface ?
I tried to use roll curve and slide curve to try to animate my pin to slide along the ellipse, but it just couldn't work, still showing 2 DOFs, I'm not sure why.
I referred, even did the exact same thing as this guy did (https://www.youtube.com/watch?v=XE0vtxQj8Vc&t=20s) but i couldn't reproduce what he did either, always ended up showing DOFs > 1 .
Attached below is my image and curve
I tried using point curve (Point coincidence with pin's circumference + path of the ellipse) and a planar joint between planes of pin and ellipse, both of which are parallel to the pin's axis, but still ended up with DOFs >= 1.
Attached below are my files