[Doug G]

Originally Posted by richardmcc2

Just out of curiosity, where did you get those gears for the encoder setup you have? And how is the lower gear on the 1/2" Banebots shaft attached? Is it a set screw? Did it come with that 1/2" bore or did you have to enlarge it?

Those are 36 tooth, nylon, spur gears that we ordered from McMaster-Carr (pg 1012). The come stock with a 1/4" bore, which is great for the encoders, but had to bore them out to 1/2" for the banebots and add a 1/8" keyway using a broach.