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Author Topic: Mach3 plasma + THC 150 issue  (Read 632 times)

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Offline TPS

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Re: Mach3 plasma + THC 150 issue
« Reply #10 on: December 27, 2018, 11:36:08 AM »
can you pls post your GCode ?
anything is possible, just try it.
if you find some mistakes, in my bad bavarian english,they are yours.
Re: Mach3 plasma + THC 150 issue
« Reply #11 on: January 04, 2019, 02:33:33 AM »
Here is my GCode:

N0010 (Filename: Work1.tap)
N0020 (Post processor: MP1000-THC.scpost)
N0030 (Date: 01/01/2002)
N0040 G21 (Units: Metric)
N0050 G53 G90 G40
N0060 F1
N0070 (Part: Work1)
N0080 (Operation: Inside Offset, Layer 1, T3: Steel 3 mm)
N0090 M06 T3 F1500  (Steel 3 mm)
N0100 G00 Z10.0000
N0110 X22.6966 Y46.4400
N0120 Z3.0000
N0130 G28.1 Z3.00
N0140 G92 Z0.0
N0150 G00 Z0.0520
N0160 G92 Z0.0
N0170 G00 Z3.0000
N0180 M03
N0190 G04 P0.1
N0200 G01 Z1.5000 F100.0
N0210 G02 X25.2566 Y49.0000 I2.5600 J0.0000 F1500.0
N0220 G01 X49.0000
N0230 Y1.0000
N0240 X1.0000
N0250 Y49.0000
N0260 X25.2566
N0270 G02 X27.8166 Y46.4400 I0.0000 J-2.5600
N0280 M05
N0290 G00 Z10.0000
N0300 X0.0000 Y0.0000
N0310 M05 M30
Re: Mach3 plasma + THC 150 issue
« Reply #12 on: January 04, 2019, 04:14:03 AM »
Code: [Select]
N0120 Z3.0000
N0130 G28.1 Z3.00
N0140 G92 Z0.0
N0150 G00 Z0.0520
N0160 G92 Z0.0


With the above code you are setting you Z axis home location as the top of the material.

You are setting via G92 as Z0.0 ..... you should allow for the switch offset

The torch then moves 3mm above the top of the material (but again.... you've not allowed for your switch offset).

Code: [Select]
N0180 M03
Fires the torch

Code: [Select]
N0190 G04 P0.1
Waits 100milliseconds

Code: [Select]
N0200 G01 Z1.5000 F100.0
And then drops from (3mm to 1.5mm..... but again.... you've not allowed for your switch offset....)

To set your switch offset, get something like thin paper and place it below the torch.
Perform the G28.1 which will home the axis, and probably set it to 0.0
then jog the axis upwards 1 step at a time until you can slide the paper out from under the torch..... this is your switch offset height
Add that switch offset to your G92 X____ withing the post processor (it will probably be called "switch offset") ....... note that it will be negative (because when you perform G28.1 the torch will be homed BELOW the switch offset height)

So when you retract for the pierce it will retact 3mm + the switch offset.

Rob

Albert Einstein ― “If you can't explain it to a six year old, you don't understand it yourself.”
Re: Mach3 plasma + THC 150 issue
« Reply #13 on: January 04, 2019, 06:16:06 AM »
Thanks robertspark, i was set switch offset in post processor but now i don't know if it is in negative. I will check and let you know.