constraints will not finalize

Brooke_Bialas1

I'm doing the Multi-part studios exercise. I went all the way through the clamp build and everything worked fine right up until I tried to change the dimensions then the part constraints on the 50mm pivot circle wouldn't change with the dimension changes. I went back and started the sketch drawing over several more times, but now I can't get the master sketch to finalize. I'm lost to what is going on.
Any help. 

KatieHuffman

@MCassidy you might be missing some sketch constraints- most likely a tangent or perpendicular. Without digging into the sketch that would be my guess. If you are comfortable making it public, and posting the link, I can take a look.

Brooke_Bialas1

I'll go back over them once more and check for something missing.

john_lyon

I am have the same problem anyone care to take a look at my drawing and tell me what am I missing?  https://cad.onshape.com/documents/1cf6b2e2f0866159ba90f67a/w/eaf5590bc5b30eee287a12be/e/3b392f66e6f1ff64cdbd097a?renderMode=0&uiState=64f7ae111dd09e68d43d4d50

glen_dewsbury

@john_lyon
Your sketch is not closed. See spline highlight. Line needs a coincident constraint to stay connected to arc. The horizontal constraint isn't doing anything useful.
The arms will continue to move unless you add something like a finalizing angle or something. Before adding the angle I was able to move things about such that the line pulls back and opens the sketch.
https://cad.onshape.com/documents/8bda7b8a22c0426a3ed20f6a/w/a103ecbcdb6047c20153607b/e/55231812773ea6d5e384e4d4