Help! Onshape parts will no longer move in an assembly?

16156Rcubed

I was 98% done with a robot prototype when I lost the ability to move the parts in an assembly to create the final robot design. Everything is fastened mated as far as I can tell. This is my very first Onshape student project.

https://cad.onshape.com/documents/939328a0518b2e25e2f15e00/w/5cc8dcfe4f7869eb5b7f49d5/e/96393f2ca2e9667c36627ba2

16156Rcubed

We've grouped the side parts as a group mate, and it is moving again, however, can anyone tell me why the document broke in the first place? (This is the second time this has happened to us in this build!)

john_mcclary

Duplicate post
https://forum.onshape.com/discussion/13557/onshape-parts-will-no-longer-move-in-an-assembly#latest

It is because you are using group mates on sub assemblies.

Group Mate + Sub assembly = Hell