fraisa.com 338 G0 G1 G3 G40 G41 G90 G91 M3 M5 M8 M9 Technical notes regarding use of thread milling cutters Thread milling cycle for M10 in ISO-code as an example Meaning of the G and M commands used 00 G0 G90 X0 Y0 Z+10 Tool moves to drill-hole and positions itself above it 10 G1Z-15,75 F500 M3 M8 Axial entry into the drill-hole 20 G41 Y-3,9 Start-up procedure 30 G3 X0 Y+5 Z-15 I0 J+0,55 Radial plunging via tangential arc 40 G3 X0 Y+5 Z-13,5 I0 J0 360° circle interpolation 50 G3 X0 Y-3,9 Z-12,75 I0 J+0,55 Radial withdrawal via tangential arc 60 G1 G40 X0 Y0 Withdrawal as far as the mid-point of the drill-hole 70 G1 X0 Y0 Z+10 M5 Withdrawal from the thread Linear motion at high speed Linear motion with feed F in mm/min Circular arc inter- polation with mid-point (I, J) Cancel too-radius correction Tool- radius correction (tool to left of contour) Absolute- measure- ment pro- gramming Sequentialmeasurement programming Spindle on (right- handed motion) Spindle off Cooling on Cooling off
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