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Unread 28-01-2002, 12:57
Chris Hibner's Avatar Unsung FIRST Hero
Chris Hibner Chris Hibner is offline
Eschewing Obfuscation Since 1990
AKA: Lars Kamen's Roadie
FRC #0051 (Wings of Fire (on sabbatical))
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Quote:
Originally posted by Tom Fairchild
Be glad that your set screw didn't work. As its been said on this board many times before, set screws inhale audibly. Go with a keyed shaft, its what our team loves and they are also very strong. Other guys on the board can give ya better directions on how to do it than I can.

~Tom Fairchild~
Tom:

Read my post before making negative comments.

I didn't suggest using a set screw as a set screw. I suggested a way to turn a setscrew into to pin. The method that I described works very well if you don't have the tools to do a keyway.

If anyone remembers our double jointed arm from two years ago, each arm had a double sproket reduction and we attached all of the sprockets using the setscrew pinning method I described. We never had a problem and we had to carry up to 150 ft-lb of torque in the "shoulder" joint.

Just a point to note: just because it uses a setscrew as one of the parts, doesn't mean it is being used as a "traditional" set screw. The implementation is more important than the parts list.

-Chris
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