So close!
The shaft on the BaneBots gearboxes are .375". The motors I have don't have any extra shaft, but they're standard RS-385 motors, so it's possible someone has a pair that do have the extra shaft. I might be able to pull that final output shaft out of the gearbox and turn down the outer end to .25" but that might be pretty painful.
~Mike
Found a simpler solution.
The output shafts on the BaneBots gearboxes are drilled and tapped for #8-32 screws. I took a couple screws that size, chucked them in the lathe and turned a portion of each to 3mm. These will function as a short extension of the output shaft in a size that is available in the US Digital encoders. I fabricated a pair of brackets so that the encoders can be mounted onto these extensions.
The encoders are ordered, and I am excited to try them out. Quadrature encoders at 300 CPR resolution for $20 each is hard to beat.
Mike,
Hey, that is good to hear! :) Keep us posted!
OK.
Trying to understand how to calculate my max vel, and what I should use for optimal L.
I have the 300 cpr encoders attached. At 108 max RPM, that's 540 ticks per second. With an L of 83, when I apply a PWM of 100 and read the vel, I get about 72. Does that mean that 72 is my target max vel?
Any help on this would be appreciated.