r/FreeCAD • u/CarlosWasHereTho • 1d ago

Assembly Workbench Help

Post image

I added these revolute joints which are pivot points, but I want to simulate the way that the green body slides on the bottom surface of the golden body, I tried adding a slider joint, but then the revolute joints got stuck and never moved,

1 Upvotes

100% Upvoted

5 comments sorted by

2

u/R2W1E9 1d ago

Distance joint between round face on green and golden face.

https://reddit.com/link/p71eyua/video/7a32y4k3hrmh1/player

0

u/Maerkonator 1d ago

FreeCAD's Slider Joint has 1 DOF, that being translation, your desired type of slider joint has 2 DOF, translation and rotation.

2

u/CarlosWasHereTho 1d ago

I see, how do you simulate this kind of movement tho

0

u/Maerkonator 1d ago

You need to either find a combination of constraints which satisfy the required DOF or you make an additional part that's connected to the base with a slider & to the longer link with a revolute joint.