TMPG_US-EN

Programming Guide

Using the information on the previous page, the values can be calculated:

Pitch

0.05

= 1 / thread per inch RPM

5416

(SFM • 3.82) / Tool diameter Linear feed

54.16

RPM • Feed per flute • Number of flutes Feed rate for thread milling

12.69

Linear feed • ((Major thread Ø - Tool Ø) / Major thread Ø) Z axis move on arc on

0.0063

(Pitch / 8) Z axis move for full thread (Pitch / 8) + Length of cut Arc on/off

0.5063

0.0256

(Major thread diameter - Tool diameter) / 4 Full rotation value (Major thread diameter - Tool diameter) / 2

0.05125

Major thread diameter

Z axis for arc on/off Arc on/off value (X,Y)

0.4375

0.0063 0.0256

Tool diameter

0.335

Length of thread

Full rotation value (X,Y) 0.05125

0.5

Feed rate for thread milling 12.69 Z axis depth for full thread 0.5063

Pitch value

0.05

WARNING: The program is based off the center of the tool. No diameter value should be stored in the machine’s controller for the thread mill. This will cause a machine controller error.

THREAD MILLING REFERENCE GUIDE | 13