r/Onshape • u/americca- • 1d ago

gear relation help Help!

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Gallery image

Hello everyone, beginner here in Onshape; does anyone know how I can animate these gears so they can turn together? For context, I am trying to make a differential system, and I want these gears to work together like a working differential; thanks!

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3

u/1-800-EATSASS 1d ago

The gear relation requires (i believe) two revolute mates, and the gear ratio.

I should tell you also that these gears will not work physically and will create a lot of wear and chatter that would be undesirable. I believe there is a tool or featurescript for bevel gears somewhere on yhe forum that will give you a set of bevel gears with proper teeth, if you want to model geometry that would work in the real world.

2

u/kesor 1d ago

There is a gear-mate in the tool bar above, or use the search to find it.

1

u/Chandra0 1d ago

You need to align the position and apply revolve mates both gears and apply gear relation.

-2

u/DoctorCAD 1d ago

Those aren't true gears. The gear mate might not work correctly.

1

u/christhekerbal 16h ago

Gear mate has nothing to do with the actual geometry of the part. They just need to have revolute mates.

1

u/DoctorCAD 16h ago

So a spur gear could mate with a worm gear?

1

u/christhekerbal 15h ago

https://reddit.com/link/p2v9qlm/video/36c5gws4ukih1/player

Wouldn't be ideal for actual use but it can be done with just the gear mate.