[JohnToner]

I ran a short job that required tool length comp followed by a DOC of 0.100" then another cut at DOC of 0.200". Tool length comp. instated OK but the cut, a 3.000" long slot 0.500" wide came out odd. It tappered across the 3" length before it reached final depth. The first depth was set with G0 Z-0.100 on its own line as was the second depth with G0 z-0.200. The G0 movements are all clear of the workpiece, the job ran well except for the tappering of the DOCs


O100 (xxxxxxxxxxxxxxxxxxxxxxxx)
N010 G17 G20 G40 G49 G50 G80 G94 G64 (SAFETY BLOCK)

N020 M6 T8 H8 (0.500" HSS ENDMILL)
N030 G43 G41
N040 G54
N050 G0 Z1.0000
N055 G0 X1.5000 y2.1875 (Pre-position)
N056 F10 M3 S4000
N060 G0 Z-0.1000 (Initial Depth)
N070 M3 S4000 (CW 4K RPM)
N080 G0 X1.7500
N090 M8 (Coolant On)
N100 F28

N1100 G1 Y1.2500 (Center Cut 1)
N1110 G1 X-4.7500

N1200 G0 Y0.5825 (Cut 2)
N1210 G1 X0.7500

N1300 G0 Y1.4175 (Cut 3)
N1310 G1 X-4.7500

N1500 G0 Z-0.2000 (Final Depth 0.2000)
N1501 F28
N2100 G0 Y0.7500 (Center Cut 1)
N2120 G1 X0.7500

From here it just continues as above but with the 0.200 DOC. What did I doe wrong?

Thanks,
John

[solidcamx]

I have a Tormach postprocessor for SolidCAM 4axis simultaneously and Tormach 3axis ..
Tested and works perfectly.

[email protected]

[rlockwood]

I ran a short job that required tool length comp followed by a DOC of 0.100" then another cut at DOC of 0.200". Tool length comp. instated OK but the cut, a 3.000" long slot 0.500" wide came out odd. It tappered across the 3" length before it reached final depth. The first depth was set with G0 Z-0.100 on its own line as was the second depth with G0 z-0.200. The G0 movements are all clear of the workpiece, the job ran well except for the tappering of the DOCs


O100 (xxxxxxxxxxxxxxxxxxxxxxxx)
N010 G17 G20 G40 G49 G50 G80 G94 G64 (SAFETY BLOCK)

N020 M6 T8 H8 (0.500" HSS ENDMILL)
N030 G43 G41
N040 G54
N050 G0 Z1.0000
N055 G0 X1.5000 y2.1875 (Pre-position)
N056 F10 M3 S4000
N060 G0 Z-0.1000 (Initial Depth)
N070 M3 S4000 (CW 4K RPM)
N080 G0 X1.7500
N090 M8 (Coolant On)
N100 F28

N1100 G1 Y1.2500 (Center Cut 1)
N1110 G1 X-4.7500

N1200 G0 Y0.5825 (Cut 2)
N1210 G1 X0.7500

N1300 G0 Y1.4175 (Cut 3)
N1310 G1 X-4.7500

N1500 G0 Z-0.2000 (Final Depth 0.2000)
N1501 F28
N2100 G0 Y0.7500 (Center Cut 1)
N2120 G1 X0.7500

From here it just continues as above but with the 0.200 DOC. What did I doe wrong?

Thanks,
John

Sounds like maybe your tool pulled out, or your part pulled up?

[JohnToner]

You may be right. I checked tool height after the run, it was OK. I make a habit of doing this in order to detect any change before running the next job. So far, never been a problem with that. Now as to whether the tool might have risen a few thou, that I didn't check because at the time I removed the part from the vise, I was unaware of the problem. Thankfully, the part is functional as the depth of the cuts was for clearance only. The critical dimension was the width (0.835") for the longer cut.

Thanks,
John

[Steve Seebold]

Sounds like maybe your tool pulled out, or your part pulled up?

DITTO