omni drive transmissions

[Thermal]

Originally Posted by AdamHeard

If you are not directly driving the wheels with the gearbox output shaft, 1-2 stackerboxes and a chain reduction seems to be a very light and compact option. You could probably direct drive from a stackerbox, but I would modify them to replace the output shaft with a 1/2".



If it was $460, your robot was illegal.

I'm sorry, I misquoted the price, the actual price of a slab of that size is 200. Here is the mcmaster-carr product number for the sheet we got.

8752K518

Sorry for the confusion.

Also back on topic, we originally went with the 45° omni design in cad, but decided to go with the mecanums. Here is the inventor render of the omniwheel bot. Also, if you have access to a waterjet (or even if you don't) you can try and setup a way to get those mecanums cheaper. We contacted AM and just got the sideplates for 180 dollars, and we fabricated our own rollers from brass tubing bought off of mcmaster and sheets of rubber which we then jetted out the rollers from. It ended up saving us about 100 dollars for the set overall.

http://www.chiefdelphi.com/media/photos/29534

Also theres a bonus, a very lengthy discussion on the design for you to read through :-D