Messages

401

General Mach Discussion / Re: MACH3PLASMA LIMIT SWITCHES FOR G540/PROMA

« on: March 01, 2018, 02:21:50 AM »

I’ve messed with the setting on the PROMA a little bit, and I have noticed: if I leave the delay timer on proma for a period longer than the duration of the cut itself, the z will work fine. If I lower the delay time, for a period shorter than the duration of the cut (PROMA makes adjustments to Z in Mach) the Z then doesn’t compensate for the distance traveled by the PROMA.

That is correct = by setting a long delay you are effectively turning THC OFF

The delay is a Pierce delay - it must be set JUST long enough for the pierce to happen and the torch to start moving, no longer, no shorter.

402

General Mach Discussion / Re: MACH3PLASMA LIMIT SWITCHES FOR G540/PROMA

« on: March 01, 2018, 02:20:30 AM »

It needs a careful, methodical approach, step by step.

I would try disconnecting or turning off Proma, fit two switches - Z-up & Z-down to the points where the proma was connected.

Now, with the plasma turned off and code loaded, try running the code and you should be able to jog the torch up/down manually as it goes.

At the end, after M05, issue G0 Z0.5 in MDI and the torch should be 0.5 above the metal.

Post the results

My codes all end with
 
G00 z1
M05 M30

Also what is MDI, sorry

Not what i asked, but ok, when your code has finished running(torch off) enter G0 Z0 into the MDI and press enter

MDI = Manual Data Input - its a line/box where you can type G code directly and it will run as soon as you press enter

403

General Mach Discussion / Re: MACH3PLASMA LIMIT SWITCHES FOR G540/PROMA

« on: February 28, 2018, 05:01:19 PM »

Could it possibly be the work offsets? I can’t set them to 0.

Don't worry about WO,they will give you a headache, they are rarely zero and only indicate the difference in position from machine home to where you set XYZ zero.

Concentrate on the odd behaviour

404

General Mach Discussion / Re: MACH3PLASMA LIMIT SWITCHES FOR G540/PROMA

« on: February 28, 2018, 04:58:14 PM »

It needs a careful, methodical approach, step by step.

I would try disconnecting or turning off Proma, fit two switches - Z-up & Z-down to the points where the proma was connected.

Now, with the plasma turned off and code loaded, try running the code and you should be able to jog the torch up/down manually as it goes.

At the end, after M05, issue G0 Z0.5 in MDI and the torch should be 0.5 above the metal.

Post the results

405

General Mach Discussion / Re: MACH3PLASMA LIMIT SWITCHES FOR G540/PROMA

« on: February 28, 2018, 04:45:31 PM »

MACH is changing my Z zero on its own after the first m05 code.

Pretty certain Mach will not be doing it, something else, but not Mach, if it were then nobody would be using it and there are thousands of users.

406

General Mach Discussion / Re: MACH3PLASMA LIMIT SWITCHES FOR G540/PROMA

« on: February 28, 2018, 02:39:29 PM »

deleted N100 toolchange not necesary.

sorry i modified N100 to N100 F80 to Keep the fedrate

Does the tool change code matter? It’s being generated by itself, but in MACH, my “ignore tool change” setting is checked. It has never been an issue

It shouldn't but in light of odd things going on, any odd code should be pulled i think just until its all working at least.

407

General Mach Discussion / Re: MACH3PLASMA LIMIT SWITCHES FOR G540/PROMA

« on: February 28, 2018, 02:05:24 PM »

everything seems ffine to me,..,

Code: [Select]

N0010 (Filename: 1.tap)
N0020 (Post processor: Mach3 plasma.scpost)
N0030 (Date: 28/02/2018)
N0040 G20 (Units: Inches)
N0050 G53 G90 G91.1 G40
N0060 F1
N0070 S500
N0080 (Part: 1)
N0090 (Operation: Outside Offset, LAYER_1, T1: Plasma, 0.0561 in kerf)
N0100 M06 T1 F80.0  (Plasma, 0.0561 in kerf)
N0110 G00 Z1.0000
N0120 X0.6134 Y0.6013
N0130 Z0.0000
N0140 M03
N0150 G03 X0.7726 Y0.6873 I0.0366 J0.1227 F80.0
N0160 X0.7726 Y0.6873 I-0.2726 J0.0813
N0170 X0.6865 Y0.8466 I-0.1227 J0.0366
N0180 M05
N0190 G00 Z1.0000
N0200 X1.1256 Y-0.1384
N0210 Z0.0000
N0220 M03
N0230 G03 X0.9976 Y-0.0104 I-0.1280 J0.0000
Hmm, N0100 & N0130 items seem odd to me

Tool change is not usually used in plasma, why is it going to Z0 before the pierce??

You should never, pierce at zero height, unless this is a scratch-start plasma??

408

General Mach Discussion / Re: MACH3PLASMA LIMIT SWITCHES FOR G540/PROMA

« on: February 28, 2018, 01:36:26 PM »

Could it be because I’m using a PP that is designed to run without a THC?

Doubtful, the port won't know a plasma cutter form a mill - its just a port.

After the cut, there should be an M05 which turns the torch off, then a G00 Znn where nn is your clearance height.

The clearance height is relative to the height by your probing routine, if the probing works, then the torch tip should return to clearance height after every cut.

Any chance you can show some code?

409

General Mach Discussion / Re: MACH3PLASMA LIMIT SWITCHES FOR G540/PROMA

« on: February 28, 2018, 12:44:02 PM »

Really interesting, on my second pierce, when it goes to probe it changed my cutting speed From 130 ipm  to 30 ipm.?

I have never seen this, as far as i know, the only things that can change the speed are :- Code, Feed Override, MDI

If yours is changing outside these commands then you have a problem I think.

410

General Mach Discussion / Re: MACH3PLASMA LIMIT SWITCHES FOR G540/PROMA

« on: February 27, 2018, 04:48:10 PM »

Pierce height should be in the g-code IIRC