Quote:
Originally Posted by KohKohPuffs
Always amuses me every time 
Can this go in both directions, or can it only go in one direction? I remember something about that a while back, but my memory is failing me there.
What practical application would this have? I would imagine this having a slower speed than most gearboxes, but a great amount of power/torque for game elements that would require such. |
It can go in both directions, but has backdrive resistance. Using pins should make it totally anti-backdrive, but I'm thinking about switching to rollers for just backdrive resistance instead.
The 20:1 reduction in the same space as a 10:1 reduction has a few uses. For example, intakes with high-speed motors like BAGs or AM-9015 can easily require more than a 10:1 ratio, and often times a 20:1 ratio could work. This year for 115's elevator we used a 21:1 reduction 2-stage versaplanetary on two RS-775, as well as a disc brake to hold the totes. We could have simultaneously saved a little space and weight as well as removed our disc brake by using a 20:1 cycloidal stage.
Any situation where you require lifting of the robot or something similar that requires full anti-backdrive I would use a pinned cycloidal versaplanetary stage. But if it doesn't need to be that strong and you want better efficiency, a roller cycloidal stage would work better.