"Bob La Londe" wrote in message
news
I need to machine some metric trapezoidal threads. Both internal and
external.
What's the best way to do that?
Is hand grinding the tools going to be my best approach? I think
maybe it is since they are for making molds of two mating parts.
The molds can't be of the exact thread forms or the parts won't fit
together. A proper cutting tool for those threads might not produce
what I need. I'm still thinking my way through the process.
A local vendor who has closed sold me an imported 3-axis angle vise
like this that I use to surface-grind angular and trapezoidal
threading and spline milling bits.
http://www.wikiwand.com/en/Tool_and_cutter_grinder