Quote:
Originally Posted by Ginger Power
In other words...avoid doing that. Gotcha. Thanks for the input everybody! The current plan is to go with a single cim Gem500 with 3 or 4 stages- still deciding. If anybody is interested in seeing the CAD (or just a picture) PM me!
Also, can anybody speak to how well the Gem500 (and mounting bracket) can handle side loads to the output shaft (30-50lbs)?
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One issue we ran into with the GEMs was that the pressed in pinions that the planet gears sit on can wobble out if there is a lot of side loading. It depends a great deal on the type of GEM used as AM has switched out the parts over the years. In theory, there are large washers inside the GEM to help with this. We went so far as to weld them at one point and even had the shop attempt to harden them... no luck, they snapped like twigs.
Also, with 4 stages, it is possible to corkscrew the output shaft so run your calculations carefully before running it on a robot.