CNC Tapping
I am trying to set up a tapping job with a Procunier 2e using a 1/4 20 tpi tap. In the tool setup I set the Reverse Multiplier to 200%, pitch to 20 TPI, Axial travel to 0, underfeed to 5% and RPM to 940. This generated the following G-Code for Mach3.
N0010 (Filename: TAP.tap)
N0020 (Post processor: Mach3.scpost)
N0030 (Date:26/01/2014 Time:07:02:42)
N0040 G20 (Units: Inches)
N0050 G40 G90 G91.1
N0060 F1
N0070 (Part: DREMEL395)
N0080 (Operation: Tap, DIMENSIONS, T10: Procunier 1/4-20 tpi, 0.5 in Deep)
N0090 S940 G00 Z6.0000
N0100 (Procunier 1/4-20 tpi)
N0110 T10 M06
N0120 G43 H10
N0130 G00 Z0.1250
N0140 S940 M03
N0150 M49
N0160 G95
N0170 X2.0000 Y-1.0000
N0180 Z0.0394
N0190 G01 Z-0.500 F0.0475
N0200 F393.7008
N0210 Z0.039 F0.095
N0220 G00 Z0.1250
N0230 X-2.0000 Y-0.5000
N0240 Z0.0394
N0250 G01 Z-0.500 F0.0475
N0260 F393.7008
N0270 Z0.039 F0.095
N0280 G00 Z0.1250
N0290 Y1.0000
N0300 Z0.0394
N0310 G01 Z-0.500 F0.0475
N0320 F393.7008
N0330 Z0.039 F0.095
N0340 G00 Z0.1250
N0350 M48
I have a question regarding this G-Code
N0190 G01 Z-0.500 F0.0475
N0200 F393.7008
N0210 Z0.039 F0.095
I understand that N0190 commands a Z axis move to -.50 with a feed rate of .0475 per revolution (G95 on N0160) and that N0210 reverses direction at twice the speed. What I do not understand is what does N0200 do?
Thanks in advance for an answer to this.
Noncarborundum Illigitimus