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Unread 20-01-2016, 07:39
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timytamy timytamy is offline
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AKA: Tim
FRC #3132 (The Thunder Down Under)
Team Role: Electrical
 
Join Date: Nov 2009
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Re: Heat/Friction of 775 + Versaplanetary

Lots of good info/thoughts.

We're pretty confident we've got the right amount of grease etc. We've used the versaplanetarys before without issue.

Quote:
Originally Posted by R.C. View Post
To confirm,
OP are you using the piloted versaplanetary plates or the metal plate?
We are indeed using the plastic (injection moulded?) plates from some of the more recent versaplanetarys.

Quote:
Originally Posted by cbale2000 View Post
This might be a dumb question, but what is the ambient temperature of your workspace? Just noticing OPs location, and given the hemisphere and time of year... Just a thought.
Haha, good question! Outside we're seeing temperatures of ~40 C, but I don't think we'd ever see more than ~30 C inside. While an interesting factor, I don't think it can explain the massive power draw on idle.

From the sounds of it the most probable explanation is alignment issues. However since we've pulled this gearbox apart and put it together multiple times, I don't think it's a simple user error. We'll get the students to swap out the motor plate tomorrow and see how that goes.
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Tim W
FIRST® Team 3132 - The Thunder Down Under
Sydney, Australia
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