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Unread 29-08-2012, 01:51
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VEX Robotics Engineer
AKA: Arthur Dutra IV; NERD #18
FRC #0148 (Robowranglers)
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Arrow Re: pic: Delrin Poly Cord Pulleys

Quote:
Originally Posted by Mk.32 View Post
So my worst fears as been confirmed, the .6 ID of these pulleys make them to flexible. Under the load of 4 cords there is about an 1/8 of an inch of deflection which makes them very stiff to turn. We are switching to 6061-T6 and with an ID of .66.
If you can, go with a much larger OD and use round hollow tube for the roller material.

1.5" diameter x 0.040" to 0.063" wall thickness aluminum tube works great for polycord rollers.
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Art Dutra IV
Robotics Engineer, VEX Robotics, Inc., a subsidiary of Innovation First International (IFI)
Robowranglers Team 148 | GUS Robotics Team 228 (Alumni) | Rho Beta Epsilon (Alumni) | @arthurdutra

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