Threading Multiple Start is possible?

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11 years 6 months ago #57864 by machete
Threading Multiple Start is possible? was created by machete
Hello!

Threading with Multiple Start is possible on LinuxCNC?

We are retrofiting a big Gildemeister Lathe , and one of the tasks is to do threading with multiple start (2 or 4).

Is it somehow possible?

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11 years 6 months ago #57865 by andypugh
Replied by andypugh on topic Threading Multiple Start is possible?

machete wrote: Threading with Multiple Start is possible on LinuxCNC?


Yes.

The way to do it is by programming each "start" separately and offset the thread starting Z.
For a 3mm lead / 1.5mm pitch 2-start thread:

G0 Z0
G76 P3 ....
G0 Z1.5
G76 P3....

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11 years 6 months ago #57871 by machete
Replied by machete on topic Threading Multiple Start is possible?
Thats perfect!

Thank you so much! :)

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