Something wrong with my gear assembly - can't create gear relation

will_parker589

Hi community,

I am very new to this but so far I've managed to create some spur gears with sprockets attached and create an assembly where they are all correctly depthed and revolve around their axles.

I can't seem to create a gear relation however.  I managed to do this with a youtube tutorial where I just placed simple pair of gears together and define the ratio and get a good articulation and animation (including how to align the teeth).

In this case despite the different gears being able to be revolute manipulated individually I can't seem to add anything to a gear relation dialogue.

When I create the gear relation and I need to add the two gear mates I cannot click on anything at all that selects.  I can't select the gears from the left assembly parts or by clicking on them in the assembly drawing.

It just always wants me to add "Mate(s)"

Here is the Public Link:
https://cad.onshape.com/documents/3b52677f546a824ab450d8e7/w/aec6629973b7f76b479b2827/e/762f54dc4567d6b43fd45b19

billy2

pick existing mates



Any of the gear relationships need to know which which mates you're adding a relation to. 

will_parker589

Ahh! I think this helps. I’ll try this out - thank you. 

John_P_Desilets

@will_parker589 I see a few issues with this example. The pins that hold the gears in place should be fastened not revolved. By stacking up a revolved part on top of another revolved part will make it impossible to drive with a gear relationship.  Basically, the parts are spinning without driving the gear.






Take a look at this approach. Let us know if you have any questions.

https://cad.onshape.com/documents/a0c723db7a0e980f8b38a116/w/9a4241dfad7ef60b63831670/e/fcb7581e94bc1ab05ca71454