Quote:
Originally Posted by GeeTwo
Just looking at the web pages, it seems that the Tetrix hub has a round bore and set screw, but there are Nubs available with an actual D-bore and set screw. This means that on the D-bore Nub, the set screw is only there to keep the shaft from sliding along the axis; on a round-bore hub, it is also required to transfer torque.
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Gus nailed it.
As for bearings, AndyMark sells a
6mm ID bearing that could be pressed into a plate or frame member.
Matrix motors have a different bolt pattern than the Tetrix and NeveRest motors (consider the
third photo here;
ours uses the
six M3 threaded holes on the nose), so do plan accordingly. All three of our current NeveRest motors have the same bolt pattern (the NeveRest 3.7 will be different). But yes, their 12V motor would be around the same speed as a NeveRest 40.