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I have two parts (Green and red fixed) i want to connect them with a joint (Blue) that permit the green one to slide outwards then rotate.

Side View (Right part) Pieces position

Top View

a simple pivot point doesn't work since the two piece will collide with each other.

I thought about using 4-bars linkage, but couldn't figure out the right combination to give the path of motion I'm looking for enter image description here

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    $\begingroup$ Check out hinges used for things like kitchen cupboards. $\endgroup$ – Solar Mike Oct 11 '20 at 19:05
  • $\begingroup$ Check out MotionGen (on app stores) it allows you to specify positions, and calculates the required linkages to satisfy those $\endgroup$ – Jonathan R Swift Oct 11 '20 at 19:18
  • $\begingroup$ By the way "a simple pivoting motion" will work, if the pivot is about the bottom right corner of the red block. No need for this two-stage malarkey? Or do they need to end up coplanar? What is the full list of constraints? $\endgroup$ – Jonathan R Swift Oct 12 '20 at 8:17
  • $\begingroup$ @JonathanRSwift The green part is L shaped and there one on each side, they will collide with a simple rotation. Another constraint is the necessity to have the joint on the inside, can't alter or modify the outside. I edited the post and added top view. $\endgroup$ – Snaier Oct 12 '20 at 10:11

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