Translational constraints and angle constraint conflict

[PaulMunford]

This is annoying.

I've got this hinge working using translational constraints - but I don't seem to be able to apply an angle constrain to it to drive it.

I can't apply an angle constaint when using it as a flexible assembly either - and the flexible assembly keeps throwing an error to do with the translational constraints.

Anyone fancy digging in?!

[JDMather]

It works here if I set the workplanes through the axis and circle of revolution.

(the sketch circle isn't needed - I just included it to show the arc of rotation)

Have you installed all SP?

You pins are the same size as the holes/slots.  No clearance - can't manufacture perfect geometry.

[PaulMunford]

JD - first in the case! Thanks very much 🙂

I can't qute see what you've done there. Coud you elabotrate - or re-post your new version?

(I'm not going to manufacture this part - I just want to simulation the opening to work out whether my doors will bind when I use this hinge...)

[JDMather · Accepted solution]

I added two workplanes (one in each part) as shown and then placed a Directed Angle constraint in the assembly between the two workplanes.

I could then Drive Constraint.

I am using 2014.

[PaulMunford]

Hmm,

I've sort of got it working - It's still a bit unreliable though. Please could you tell me how you found the Circle of revolution?

[JDMather]

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@PaulMunford wrote:
.... - It's still a bit unreliable though.

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You might need to increase the number of calculated positions, and the initial position is important.
I often create a "dummy" constraint (like Mate-Flush or Angle = 0) to set the initial position and then rename it Suppress This.  If I need to get back to initial condition I unsuppress and then re-suppress this dummy positioning constraint.