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archiver
06-23-2002, 09:52 PM
Posted by Tom Wible, Coach on team #131, chaos, from central high school manchester and osram-sylvania.

Posted on 2/25/99 10:29 AM MST



We designed our robot to stay level at all times (even when climbing the puck) to hopefully prevent us from being tipped. Has anyone designed a device to right themselves? This seemed like an undoable task to us.

Tom Wible
Team 131

archiver
06-23-2002, 09:52 PM
Posted by Dodd Stacy, Engineer on team #95, Lebanon Robotics Team, from Lebanon High School and CRREL/CREARE.

Posted on 2/25/99 10:41 AM MST


In Reply to: tippin' posted by Tom Wible on 2/25/99 10:29 AM MST:



We tried to design for having the CG below the widest part of the 'bot, with the body and wheels held in below the "beltline" far enough that the machine should self right by gravity after being knocked flat 90 degrees. At least with the lifting mechanism in the stowed position. Seems like all the last minute weight went on high up on the machine tho', so we'll have to see how it works out in practise.

Dodd

archiver
06-23-2002, 09:52 PM
Posted by Bob Weiss, Engineer on team #54 from Hoboken HS and Stevens Institute of Tech.

Posted on 2/25/99 1:26 PM MST


In Reply to: tippin' posted by Tom Wible on 2/25/99 10:29 AM MST:



We considered a device using pneumatic cylinders to throw out "outriggers" of some kind, when commanded by the rate gyro tilt sensor. But this was in the early days just after kickoff. Just getting a machine together was rough this year, without the time for fancy stuff like that. We ended up with a machine that should be pretty tough to tip, just because we managed to keep the CG very low. We are pretty close to the weight limit, and I would guess that about 110 lbs of it is below a 9" height from the floor. Our heaviest single components are 4 cast iron timing drive pulleys (.5" pitch, 32 tooth, 2" wide), mounted in the 4 corners of the platform.