[rccars4sal]

Yes, thats a problem. I would prefer to raise the spindle slightly before plunging back in. Is there a way to assign a work offset in z to each of 9 passes, so that when the sub starts over, it can raise up, then go down to the depth of last pass, then finish plunging down the additional -.033?

Or, for the sake of simplicity, should I just let it plunge without raising back up each time?

I will be cutting nylon and acetal with this process,, possibly g-10 or carbon fiber on occasion. No coolant.

[Jim Dawson]

Try this

O2
G91
G00 Z0.066
G01 Z-0.099 F12
G90

[vmax549]

If you just want to loop through then just delete teh "G01 Z0. F7" That line takes you back to ABS Z0 each loop so you only step down to -.033 each loop. It will never progress any further.

IF you want to Go Back to the Z0 each pass then you need to do this. Don't worry about teh G4 P0 they only are there to make teh messages behave when you run the code.

At teh beginning of teh SUB you still go to Z0 but on each loop teh inc step gets larger by teh step value . Each loop teh Z increases depth by -.033 . On each loop watch teh Z depth in teh Zdro.



(Test Program)
G90 G00 X0.Y0.Z.3
#1 = -.033 (Z Stepdown)
#2 = #1
M98 P001 L9 (Call the SUB with 9 loops)
G90 G00 Z.3
G00 X2.5Y7.5
(End of Program Run)
M30
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o001
(Sub Program 001)
G4 P0
G01 Z0.F7.
G91 Z#2
G90
G01 Y0.6623 F70.
X-0.0996 Y3.5149
X0.286 Y3.5284
X0.3038 Y3.0193
G03 X0.3241 Y3.0003 R0.0197
G01 X1.0009 Y3.0239
G03 X1.0199 Y3.0443 R0.0197
G01 X1.0021 Y3.5534
X1.3877 Y3.5668
X1.4118 Y2.8763
G02 X1.3774 Y2.7274 R0.2953
G01 X1.3259 Y2.6306
G03 X1.3053 Y2.5412 R0.1772
G01 X1.3561 Y1.0872
G03 X1.3829 Y0.9995 R0.1772
G01 X1.441 Y0.9065
G02 X1.4857 Y0.7604 R0.2953
G01 X1.4961 Y0.4628
Y0.
X1.1457
Y0.5118
G03 X1.126 Y0.5315 R0.0197
G01 X0.3701
G03 X0.3504 Y0.5118 R0.0197
G01 Y0.
X0.
G0 Z0.000
#2 = [#2 +#1] ( Increase the next Plunge by the stepdown value)
(End of Sub Loop. Return)
G4 P0
M99
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