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Unread 22-04-2012, 16:26
Travis Hoffman's Avatar Unsung FIRST Hero
Travis Hoffman Travis Hoffman is offline
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FRC #0048 (Delphi E.L.I.T.E.)
Team Role: Engineer
 
Join Date: Sep 2001
Rookie Year: 2001
Location: Warren, Ohio USA
Posts: 4,047
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Re: Galileo 2012!

Quote:
Originally Posted by slijin View Post
Looks nice!

Was there a reason you never tried reversing the orientations of one of the long bots so that the CG was closer to the center than the edge?
3193's weight is actually front-biased a bit, so they were in the proper orientation. Note what happened whenever we applied forward force to the center robot later in the video - which way did 3193 tilt?

They do not have a stinger or bridge tender in the rear of their bot. There is actually not much at all back there - the internal guts of their bot are laid out very differently from ours. Plus the pivoting arms let either of us shift the CG further toward the front.

They might have had a similar result driving up backwards and tilting their arm all the way back, but I think we prefer this configuration; plus it was more symmetric and therefore looked cooler!

48's CG is very slightly rear of center, but with the stinger, we kinda need to be pointing that way. As you can see, we can hang quite a bit of the rear bot off the bridge and be comfortably balanced. Tilting the arm forward helps with stability. You can be assured we'll be pushing ours as far forward as possible, into contact with the center bot during any triple opportunities - we promise we'll be gentle!

For the record, the center "bot" in practice (donated by Team 46 ) was close to a max length 28" widebot frame.
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Travis Hoffman, Enginerd, FRC Team 48 Delphi E.L.I.T.E.
Encouraging Learning in Technology and Engineering - www.delphielite.com
NEOFRA - Northeast Ohio FIRST Robotics Alliance - www.neofra.com
NEOFRA / Delphi E.L.I.T.E. FLL Regional Partner

Last edited by Travis Hoffman : 22-04-2012 at 16:47.
 


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