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Jim Wilkins[_2_] Jim Wilkins[_2_] is offline
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Default Metric Trapezoidal Threads

"Bob La Londe" wrote in message
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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