I'm not really sure where to post this, but I figured mechanics might be some folks that could help me out.
I happen to be getting a small CNC machine soon, and also have a need for several chain rings. (just started riding track) I am exploring the cost effectiveness of making my own on the CNC machine as both a school project (Industrial Design) and a way to save a few bucks. (nice chain rings can be upwards of $80 a piece)
I can extrapolate the functional aspects of the design from chain rings I have access to, but I'm not sure what material is appropriate. I assume it's some aluminum alloy, but don't know which one, and don't know what heat treating or other post process treating methods should be used. I'm guessing something like 7075/6?
Can anyone point me in the right direction?