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Unread 19-03-2008, 09:37
Brandon Holley's Avatar
Brandon Holley Brandon Holley is offline
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FRC #0125 (NU-TRONs, Team #11 Alumni (GO MORT))
Team Role: Engineer
 
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Rookie Year: 2001
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Re: how does one go about making a 6 wheel config drivetrain?

A few clarifications:

-Center wheel drop isn't *necessarily necessary (See any of 25's drivetrains from the '03 and on)
-#25 chain can be just as effective as #35 chain

On the 2nd note there, if your team feels like taking a little risk go for the #25 chain, and make sure you do it right. Tension obviously is key. I have used #25 on my '04 drivetrain (where we did all reduction through chain and sprocket to pair the CIM with the drill and then finally drive the wheels, I believe it was 11 or 12 chains per side) I did it in '05 and I did it in '07...I HAVE NEVER SEEN A #25 CHAIN BREAK so I may be slightly biased, but honestly do not let the age old "#25 is too weak" stop you from trying it.

This year however, we used kevlar reinforced timing belts with aluminum pulleys. Around 1/6 of the weight of a comparable chain and sprocket setup, with very little noise and a very sleak design. I love them, and I see no reason to stop using them. See here: http://www.chiefdelphi.com/media/photos/30256
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MORT (Team 11) '01-'05 :
-2005 New Jersey Regional Chairman's Award Winners
-2013 MORT Hall of Fame Inductee

NUTRONs (Team 125) '05-???
2007 Boston Regional Winners
2008 & 2009 Boston Regional Driving Tomorrow's Technology Award
2010 Boston Regional Creativity Award
2011 Bayou Regional Finalists, Innovation in Control Award, Boston Regional Finalists, Industrial Design Award
2012 New York City Regional Winners, Boston Regional Finalists, IRI Mentor of the Year
2013 Orlando Regional Finalists, Industrial Design Award, Boston Regional Winners, Pine Tree Regional Finalists
2014 Rhode Island District Winners, Excellence in Engineering Award, Northeastern University District Winners, Industrial Design Award, Pine Tree District Chairman's Award, Pine Tree District Winners
2015 South Florida Regional Chairman's Award, NU District Winners, NEDCMP Industrial Design Award, Hopper Division Finalists, Hopper/Newton Gracious Professionalism Award