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Unread 03-05-2013, 21:00
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Abhishektha
FRC #1923 (The MidKnight Inventors)
Team Role: Leadership
 
Join Date: Apr 2010
Rookie Year: 2010
Location: Plainsboro, NJ
Posts: 17
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Re: Looking for info on expandable shooter wheel

We were getting more wear on the wheels than the other teams, especially on our back wheel. We replaced the back wheel at Lenape, and then the front wheel at MAR champs. At St. Louis, we were planning to replace the back wheel again as it was starting to show wear, but we had more important issues to attend to, and we left it running as is. The wheels has some small abrasions in it, which did not affect our shooting.
We ran these wheels for our second district event (Lenape) after talking to a few mentors on 2590 during Hatboro-Horsham. We were originally running two AndyMark pneumatic wheels, and they were OK, but our bucket jamming problems during Hatboro-Horsham made us very unreliable and left us in many matches where we couldn't even shoot.

After Hatboro-Horsham, we completely redesigned our shooter and ran the new expandable wheels. One difference we ran them with was we had much more compression (it seemed) than other teams. We had over 1" of compression when the wheel was fully expanded. We ran the 2" width wheels with the 3/4" bore. To interface them, we simply bought a 3/4" to 11/16" bushing, and then another 11/16" to 5/16" bushing, and press-fit the bushings into the bore of the wheel, and pressfit the wheel onto our mini-cims we were using to power it.

EDIT: We ran the nitrile ones, but they also come in neoprene and urethane.
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Last edited by aboppana : 03-05-2013 at 21:01. Reason: adding material for wheels
  #17   Spotlight this post!  
Unread 03-05-2013, 23:41
Mike Marandola Mike Marandola is offline
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AKA: Mike Marandola
FRC #0316 (Lunatecs)
Team Role: Mentor
 
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Rookie Year: 2008
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Posts: 666
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Re: Looking for info on expandable shooter wheel

Quote:
Originally Posted by fb39ca4 View Post
What sort of material are they made from?
You can buy them in nitrile, neoprene, and urethane but it seems like most teams were using the nitrile wheels.
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2015 - Pioneer Valley District Finalists/Upper Darby District Finalists/MAR District Championship #1 Seed and Winners with 225 and 203
2014 - Lenape Seneca District Winners/Chestnut Hill District Winners
2013 - Lenape Seneca District Winners/Chestnut Hill District Finalists
2011 - Philadelphia Regional Finalists
2009 - Finger Lakes Regional Finalists

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