Quote:
Originally Posted by craigboez
Thats interesting, thanks for the info. What made you choose 45 degrees vs 60? Was your shifter also modified so that the balls were closer together? The Vex shifters are spaced apart by 0.5" so the full cylinder stroke travel is required.
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Since it was my first time designing a ball shifter and I wasn't sure the design decisions that led Vex to choose the 60 deg angle, I went with the 45 deg angle as a safer alternative. (As 192 prefers to use the smallest actuators possible.)
The ball cavity spacing is the same (I've never actually looked at that value before today), however the stroke is shorter because I designed our shifter shaft to engage in different positions along the shaft for each gear.