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Unread 03-01-2016, 03:18
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Munchskull Munchskull is offline
CAD Designer/ Electrical Consaltant
AKA: Anthony Cardinali
FRC #0997 (Spartan Robotics)
Team Role: CAD
 
Join Date: Jan 2013
Rookie Year: 2013
Location: Corvallis, OR
Posts: 504
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Re: WCP vs Vex Ball Shifter

Quote:
Originally Posted by pilleya View Post
Both the WCP DS and the VEXpro ball shifters are good quality.



Only the VEXpro ball shifter has a 3rd stage



The output shaft of both gearboxes is made from 7075 Aluminium that is anodised. There shouldn't be any problem with the shaft wearing down when used correctly such as in a WCD. The shifting component either Dog or Ball can wear though.



The VEXpro ball shifters allow encoder attachment while the WCP DS does not. If you are planning to use a WCD this is not a problem as the encoder such as a grayhill or a CTRE mag encoder can be mounted to an outer axle. If necessary a CUI encoder, First choice 2015 and 2016 can be mounted to one of the CIM motor shafts of the WCP DS using this great thing http://www.chiefdelphi.com/forums/sh...WCP+DS+encoder

First of I love seeing people recommend my stuff. Second of be careful because I do belive the first choice variety of CUI encoder is the 101V (need to check that) which is right angled making it harder to use. Also the WCD gearbox verison requires machining to the pinion or you need to use andymark pinions.

That said for gearboxs I would go with WCP DS, why well I have heard of teams wearing the ball shifter out over a season. After a season with DOG shifted we are planning to reuse internals because the are still in good condition.
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Anthony Cardinali
4th year of FRC
Class of 2017



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