Posted by Kurt on April 21, 2002 at 21:58:15:
In Reply to: Mouthpiece Blanks posted by David McRoberts on April 21, 2002 at 20:10:14:
I've recently gotten into mouthpiece prototyping. For blanks, I use 2in. diameter brass stock (you can order small amounts from smallparts.com). If you have access to it, CNC milling is the best (although most complicated) solution for accurate prototyping.
As for manual lathe machining, here's what to do. First, make templates for all surfaces of your design. You'll also need to grind your own tools to fit these templates. Remove most of the inner cup material by drilling, and finish using your made-to-fit tools. The backbore is tricky. If your friends have reamers with custom tapers, you can put the bore in this way. Otherwise, you'll have to use a very small boring bar.
Of course, this doesn't explain much on the actual maching part of it... get someone who knows how to machine this kind of stuff help you. Hope this helped!