Tangent mate - an error occurs

filip_tomaszewski

Hello!

This time I'm looking for some help with tangent mate.

I've made tangent mate, but it seems to not work as I expected.

Here's link: https://cad.onshape.com/documents/a488cdab6b4f2485a5484fb4/w/3d37b04d769b1aea60ce7296/e/96d703958017978a485b55c7

One time it doesn't follow recurved surface and stops with error.

Sometimes it follows an angle and then breaks with error.

Error occurred in 100% trials. Every trial was different (movement of parts).

What could be wrong? 

As far as I know in assembly parts don't interfere with themselves, so it shouldn't be a problem. Maybe problem happens because one is flat surface mating with flat/recurve surface?

FT

matthew_stacy

@filip_tomaszewski if you add copy or edit privileges to the shared document I'd be happy to see if I can help you find a solution.

GWS50

Tangent mates is one of the only mates that seems to cause me trouble too. It will be fine one moment and then it breaks unexpectedly, often flipping the outside or inside of the mated surface.
Would really like some guidance on this.

filip_tomaszewski

matthew_stacy said:

@filip_tomaszewski if you add copy or edit privileges to the shared document I'd be happy to see if I can help you find a solution.

You should be able to export and edit document right now from this link.

Without your e-mail I cannot change sharing privileges other way.

https://cad.onshape.com/documents/d617eddf9908b787e4d907ec/w/6f1144149fb35dacb89eeac6/e/9ef6bcf9e90340ade3288591

I've found solution which I could name 'ball bearing' according to book I use.

I've applied tangent mate to small ball and surface which it has to follow.

To simplify connection I didn't change trolley part. The ball just stays in it.

You can find my new solution in tab called As2

@gws50 if that's gonna help you somehow, check tab called As2, which I said about above