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Unread 05-02-2009, 12:46
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Bob Steele Bob Steele is offline
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AKA: Bob Steele
FRC #1983 (Skunk Works Robotics)
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Join Date: Jan 2003
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Re: Team 2085 Design Questions

Quote:
Originally Posted by squirrel View Post
See if you can find some pictures of 842's robot Carmen, they found what looks like a good low-buck easy-to-build way of making the belt roller/pulleys, using rings of PVC pipe on a smaller ABS pipe. The belts fit between the rings.
We are using the same arrangement exactly... white PVC rings on Black (ABS) Styrene pipe.

We actually ran our shooter using this system at 3500 RPM last night and it worked great... although you have to be careful with alignment at this speed.
If you are collecting you won't need this speed and the ring system should work fine.

We did purchase the mini-welding kit from Fenner... for the tubing...
It is about 1/2 the cost of the fancy one from MC and works great...and I believe it is worth the price...

Here is the link... I ordered directly from Fenner and also got the belting for about 70 cents per foot instead of the 90 cents from MCarr...

http://www.fennerdrives.com/eagle_po...e_mini_kit.asp

This is the link to it... around $250 but worth it if you are using a lot of belting.

Good luck with your design!!
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Raisbeck Aviation High School TEAM 1983 - Seattle, Washington
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