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Old 10-10-2011, 05:32 AM   #38
sailah OP
Lampin' it
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Joined: Aug 2005
Location: Turning expensive metal into scrap
Oddometer: 5,814
Originally Posted by Roadracer_Al View Post
Hahahaaaa, yes, you're ahead of me when I first started building crap. I tried to cut a front sprocket with a standard lathe tool (High Speed Steel) and basically rediscovered making fire via friction. The HSS just wouldn't touch it! Carbide and grinding are the only way to cut those bastids, and carbide, only barely works. I wish I knew the exact alloy and hardening process -- something that tough would come in handy for other stuff, too.

The build is looking good!

Regarding making female threads, it's pretty much just like making male threads, but the real key technology is to make a gauge -- a short threaded plug which you can use to determine if the female threads are to size. Make a cut, check the fit, repeat until you get nice tidy, slop-free threads, then quit cutting.

Yeah, I had a couple molten chips land dangerously close to my OSHA approved flip flops last night. I was doing the "lathe dance" You're right, even with a carbide bit I must have taken 20 passe. Oh well, got it. Once you got away from the surface, it cut okay, the hardening must not be all the way through for strength issues

I thought about trying to learn the inside threading but didn't have a tool ground and was really in the mood for progress not frustration. Plus the stems I was cutting were getting rather sparse having just effed another. I think at last count I have 13 sets of triples

I'm very pleased with the bike so far, I hope I can keep it looking that way. I know by the time I mount the tank, radiator and header it will have bulked up again but the tail section and minimal front end should keep it pretty light. If I get to 350, I'll be thrilled, hell a KLR weighs what 400ish?
We're not out here to rough it. We're here to smooth it. Things are rough enough in town.

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