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Re: WCP vs Vex Ball Shifter
DOG shifting has a much better track record than ball shifting in my experience with FRC. Between the WCP and the VEX I'd use the WCP for this reason. (I know that an all steel andymark supershifter can last half a decade or more. Depending on your resources this may be a worthwile 3rd option, heavy and expensive though.)
The ball shifter is quite a lot more versatile in that it can be more easily used outside of a WCD style drivetrain.
The WCP gearbox integrates into a WCD much more nicely (no 3rd stage necessary unless you want to run massive wheels). My experience with the ballshifter using the 3rd stage and versablocks is not very good. There's a lot of load on 4 #8 screws which tend to loosten and are a pain to tighten. YMMV.
reiterating the encoder comments
We can give you the pros and cons of each gearbox and our opinions on them but it's up to you to weigh these factors and ultimately decide.
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2010-2012 FRC 865 Warp7 Student, Mechanical
2013 FRC 1310 RUNNYMEDE ROBOTICS Student, Mechanical, Design
2014 FRC 865 Warp7 Student, Mechanical, Design
2015 FRC 865 Warp7 Alumni, Mechanical Mentor
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ps... it is better to have built a robot and lost than to ever played basketball at all - Andy Baker [more] 
03-01-2016, 03:59
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