Thread: How much can the window assembly lift?
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Unread 23-06-2002, 22:59
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#0047 (ChiefDelphi)
  
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Re: Something seems wrong...
Posted by Michael Betts.

Engineer on team #177, Bobcat Robotics, from South Windsor High School and International Fuel Cells.

Posted on 2/4/2000 10:28 AM MST


In Reply to: Re: Something seems wrong... posted by Tom Wible on 2/3/2000 6:24 PM MST:



: Last year we used two window track drives to elevate our robot. We did an experiment to see how much lifting power one of the window set ups had. We put the set up in a vise and tied weights to the plastic track. The motor was able to lift about 30 pounds of steel plate. If we added weight, it bogged.
............
: Tom Wible
: Team #131

Team 177 did a similar experiment with similar results (30 lbs max for reliable operation) in the first year that we used the window motors (Toroid Terror???). My recollection of the details may be a little fuzzy as the test was performed by a Physics teacher and two students who have all 'moved on' since then. As I recall, above 30 pounds the motor got hot and performance degraded.

We have used 30 pounds as a design criteria ever since. It may be a tad conservative but we have had few problems over the years.

Mike


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