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Unread 11-12-2012, 22:55
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JVN JVN is offline
@JohnVNeun
AKA: John Vielkind-Neun
FRC #0148 (Robowranglers)
Team Role: Engineer
 
Join Date: May 2001
Rookie Year: 2000
Location: Greenville, Tx
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Re: VEX Robotics Relaunches VEXpro Product Line with over 120 New & Improved Products

Quote:
Originally Posted by DonRotolo View Post
JVN & team:

For the ball shifter, the recommended Grayhill 63R encoders seem to be a bit expensive, about $65 or so. The US Digital encoders are half that. Why is the Grayhill encoder recommended?

If we choose the US Digital encoder, do you expect it to be 'easy' to mount to the shifter?

Concerning the 2-stage ball shifter with long output shaft, am I correct in assuming a (1/2") hex bearing might be needed to support the far end of the shaft, and that it is not included?

Thanks,
Don
Hi Don,
We have provided mounting in the kit for both encoders. We don't prefer one or the other, but of the myriad of Grayhill encoders, that model is the one we recommend.

If you look on the shifter page you can see we have CAD files posted showing the shifter with each encoder type mounted (one CAD model with Grayhill, one with US Digital).

Concerning the long output shaft on the 3-stage:
It depends on the loading application. What do you intend?
That shaft is double supported by 1/2" bearings, so many applications would not require additional support.

-John
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