Uses of CIMS and associated reductions

[billbo911]

Originally Posted by Aren_Hill

I've recently started doing some independent study work at college and managed to make it somewhat FRC related, and hence have a few general questions for the FRC community.

What occasions have you used a CIM motor outside of a drivetrain?

What were those occasions?

What gear reduction did you apply to said CIM?

What method/gearbox did you use? custom spur? planetary? number of stages?

What were the leading issues you faced when designing said reduction?

If you could respond with answers to these questions that'd be great

Funny you should ask. I just re-ran the calculations on our CIM powered winch for 2013 and have them right here.

90.6:1 gear reduction. Three stages of spur gear reduction and one of chain reduction. 77% efficiency total for four stages.
The first two stages are through a Toughbox Mini, third and forth stages are custom.

The leading issue was trying to fit it on our robot .
With just a Drill/Mill to work with, we had to use .25" aluminum plate without much work done to lighten it.

http://www.youtube.com/watch?v=QvJWH_ZjcSU