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Unread 07-05-2013, 13:00
James Tonthat James Tonthat is offline
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FRC #0148 (Robowranglers)
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Location: Greenville, TX
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Re: Battery Leads Coming Loose

Quote:
Originally Posted by jee7s View Post
To crimp, we use McMaster# 7061K12 plus an arbor press (no, we don't hit it with a hammer to compress like the instructions suggest). If you go this route, make sure you crimp into and out of the face of the lug. Going sideways means you don't get the right geometry since you aren't pressing into the split part of the lug.
We use the same crimper and but with a hammer, I don't think we've ever had any issues with the wiring mechanically coming out. We just make sure we're doing the crimping on a solid concrete floor.

These are the type of crimps (McM#7113K249) that we use. We also use #4 AWG wiring instead of #6. It's a highly stranded car audio wiring that we use. Something very similar to this Stinger Pro Translucent Red

Andy has pretty good pricing on the SB50 connector and terminals but we buy ours through Powerwerx along with our other APP products. (Warning: the other colors have different connector geometries so only buy red.) We use to use this crimper for the SB50 connectors but I'm not sure if we do it any more. I'll have to check in with our electronics students.
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James Tonthat

Mechanical Engineer, RackSolutions, a subsidiary of Innovation First International

Lead Engineer - Texas Torque - 2009-2014
Mentor - Robowranglers - 2015-