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Unread 09-02-2004, 15:25
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Daniel Brim Daniel Brim is offline
It's hard hat time here in Boston
AKA: DFB
FRC #0125 (NUTRONS)
Team Role: Engineer
 
Join Date: Feb 2003
Rookie Year: 2002
Location: Boston, MA
Posts: 938
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Re: pic: 294: Orange Tide

Quote:
Originally Posted by sanddrag
I like it a lot. I have a few questions:

1.) What are the four "trapezoidal prisms" coming up from the chassis?
2.) How did you cut the numbers in that plate?
3.) Why the different wheels?
4.) What are the shiny pieces on the sprockets in the right side of the picture?

EDIT:

5.) How are the wheels affixed to the axles/sprockets?
1. Those are our idler assemblies, for tensioning the chain
2. Mentor Scott Tupper has a machine shop with a waterjet, we waterjetted the numbers out
3. More traction while turning (we may notch the smooth tires).
4. Those are custom hubs (made with a mill). We felt that the kit 45 tooth sprockets were to heavy, so we made these. The hubs bolt on to the disc part of the sprocket. The hubs have 2 set screws, as well.
5. Wheels to axle: We made a custom keyed hub and pressure fitted it in. We also have an internal star washer to keep it from sliding.

If there are any other questions, I will be happy to answer them.

-Daniel
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2003 (2002) - 2006 -- Team 294, Beach Cities Robotics
2007 (2006) - Present -- Team 125, NUTRONS