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These are great ideas for strengthening the cam socket, and I'll study up on them. I'm guessing that once I have any sort of steel socket the weakest link will be the shaft of the Allen wrench. At this point, I have to start fabricating and breaking some prototype parts. If a can't make the...

Hi Jistre, The cam will actually be part of a latch, so it will have to be torqued in both directions. The main concern is that when some fool working the latch reaches the end of travel he'll keep on cranking, trying to get it even tighter. One of the advantages of the skinny Allen wrench...

Hey Tom, Yeah, I like it! I haven't run the numbers enough to know whether the Loctite would be the weakest link, but if not there's always epoxy, or whatever. Nice glue joint, in any case. Thanks, Drew

Hey Mike, Looks good. I was picturing something with the socket running all the way through, but this should work, and it has the added advantage that it actually exists. Thanks, Drew

I'm designing a small aluminum cam that will be turned with an allen wrench (or it could be a different cross-section). I'd like to have as small a socket as I can get away with--on the order of 5/32--for a given torque, without stripping the socket. I have vaguely heard of externally-splined...

Easy for you to say, but thanks very much, Zekeman; I'll work my way through that.

Hi Guys, I’m trying to optimize the shape of a flat spring, generally semicircular in plan but tapering toward both ends like a crescent, acting as an offset link, in order to get the maximum axial deflection before yield for a given axial force. I’d love to find some simple math to get me...