Problems with Tangent Mate

ryan_thiessen999

I'm trying to draw a camera mount assembly and I have been playing around with the various mate features. In my current drawing I want the "Contact Assurance Device" - silly name, to swivel around the end flanges as though it has bearings on it and can roll.  When I do this it sometimes works and sometimes tells me things are inconsistent.  Also, even though there are two of them and are done separately, they seem to move as one.  Something I only want to happen later on when they are connected by rods.

I don't know if this is the right way to link to my document but here it is:
https://cad.onshape.com/documents/f5e8fcbad57136b903546cf6/w/f040dc06b25df32d39bb5f4d/e/b5eb7b7b2b1b627b2757fe44

I can try to explain this better if need be. I may have not explained it very well. Thanks in advance for your time.

ryan_thiessen999

Further update.  I still don't exactly know how but I have it working.  It doesn't seem to like certain pairings of mates, even if they follow the exact same curve. I deleted everything and defined it as little as possible, even removing mates that would make sense in the physical world, and it seems to be going.

ryan_thiessen999

An update.  I got things to lock down a bit better but its currently stuck from moving and claims to be overdefined, although I am not sure why.

ryan_thiessen999

Further update.  I still don't exactly know how but I have it working.  It doesn't seem to like certain pairings of mates, even if they follow the exact same curve. I deleted everything and defined it as little as possible, even removing mates that would make sense in the physical world, and it seems to be going.

_Ðave_

@ryan_thiessen999  I've been working at it and having issues also.

_Dave_

ryan_thiessen999

_Dave_ said:

@ryan_thiessen999  I've been working at it and having issues also.

_Dave_

I think I have that part working (not figured out though) but now my problem is making the lower bearing follow the lower curve without overconstraining.

Is there a way to select only part of a continuous tangent run for a tangent mate?

philip_thomas

Ryan, glad we were able to get you sorted out. Here is the full worked solution

https://forum.onshape.com/discussion/comment/16475#Comment_16475