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Originally Posted by sanddrag
Now another question: Can sprockets be lasercut out of the correct thickness of plate? Like how thick are #25 sprockets at the teeth anyhow? I don't remember if the thickness tapers off at the teath or not. Thanks.
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#25 sprockets typically have a thickness of 0.110", but the teeth are tapered slightly to the face of the tooth. I'm not sure what the face width at the very end of the tooth is. If you want to have your own #25 sprockets water/laser cut, (if I were qualified to make suggestions like this) I'd suggest getting plate the thickness of the end of the tooth and having that cut, but I'm not sure what function the taper performs (stabalizing the chain, I would imagine), so perhaps this is absolutely the wrong thing to do.
If you're dead set on making sprockets, you might consider getting cylinder stock of whatever material you're going to use, and turning it down to get the base structure of the sprocket (including a hub on each side, for this next step), and then tapering the circumference down, yourself, by hand. Then you'd laser/water cut the teeth into it. When you turn it down, you'll need to calculate the outer diameter from your intended tooth count, which just adds more complexity.
This all sounds like it could be a lot more trouble than it's worth, though.
