Plasma cutter why won't my z axis move up on rapid moves with masso g3 controller

simongts

Simongts
why won't my z axis move up on rapid moves with masso g3 when it gets to the rapid move it stays at the same height and moves to the next object I am using sheetcam and in sheetcam simulation it is moving up and down as it should but when I put it into masso it don't work the plasma cutter stays at the same height and when it finishes the G code it does not lift up when it goes back to work coordinates
 

simongts

Simongts
I just sent you machine settings and tool settings gcode file and another problem I have when I run G code on rapid moves to plasma cutter only turns off now and then so on rapid moves the plasma cutter is still on and cuts through my work place
 

Ross

Ross
I think you still have grounding issues, You can have a look at my video how i wired mine if you like.

Plus can you send the g-code file and i can test it for you.

Ross.

 

simongts

Simongts
files
 

Attachments

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  • Elephant-test-6-x1100-y1200-for-1.2-mm-sheet-1mm-tool.zip
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breezy

Moderator
@simongts

Simon,

A quick look at your settings and noticed that the Z axis acceleration figure is higher than the feed figure, generally acceleration is 20% of feed rate.

Could you do some tests on your Z axis. Jog down to the material, raise it 2mm and zero the DRO, raise Z to home position using the button on the MDI. Take note of the DRO reading. Now issue G0, then Z0 and follow that with Z(DRO reading - 5) and repeat this cycle several times. What you are trying to do is see if your driver can follow the step pulses coming from MASSO.

If it fails adjust your acceleration downwards until the test succeeds. Then try running your gcode again.

Regards,

Arie.
 

Ross

Ross
Hi Simon, this is how your tap file looks like,

N0450 M05 (---Torch OFF---)
N0460 G00
N0470 X465.9210 Y499.0805
N0480 (---Go to pierce height---)

It needs to have a lift of the Z axis at the end of the cut, it will look like this. N0380 G00 Z45.0000

N0360 M05 (---Torch Off---)
N0370 M666 (---THC Off---)
N0380 G00 Z45.0000
N0390 X199.8274 Y1582.0424

This is changed in SheetCam.

The other thing i will suggest is to use my Post Processor. here is the link.


Ross.
 

Attachments

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    Rapid-clearance.png
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Ross

Ross
Here is your tap file back, I redid it with my settings. so you can do a dry run to see if it works then do a cut if you are happy.

Plus Arie said your feed rates are not correct and this will have to be addressed as well.

I didn't look at that side of things, but i did see your piece height is not correct and should be 3mm and cut height should start at 1.5mm

On thin metal .2 of a second is long enough for your piece.

Good luck, Ross.
 

Attachments

  • Elephant-test-6-x1100-y1200-for-1.2-mm-sheet-1mm-tool.tap
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simongts

Simongts
Z axis acceleration figure is higher than the feed figure, generally acceleration is 20% of feed rate.



So what is it meant to be set at
 

simongts

Simongts
Quote from Ross on November 19, 2020, 7:24 pm

Hi Simon, this is how your tap file looks like,

N0450 M05 (---Torch OFF---)
N0460 G00
N0470 X465.9210 Y499.0805
N0480 (---Go to pierce height---)

It needs to have a lift of the Z axis at the end of the cut, it will look like this. N0380 G00 Z45.0000

N0360 M05 (---Torch Off---)
N0370 M666 (---THC Off---)
N0380 G00 Z45.0000
N0390 X199.8274 Y1582.0424

This is changed in SheetCam.

The other thing i will suggest is to use my Post Processor. here is the link.


Ross.

I haven't got a torch height controller
 

simongts

Simongts
Quote from Ross on November 19, 2020, 7:24 pm

Hi Simon, this is how your tap file looks like,

N0450 M05 (---Torch OFF---)
N0460 G00
N0470 X465.9210 Y499.0805
N0480 (---Go to pierce height---)

It needs to have a lift of the Z axis at the end of the cut, it will look like this. N0380 G00 Z45.0000

N0360 M05 (---Torch Off---)
N0370 M666 (---THC Off---)
N0380 G00 Z45.0000
N0390 X199.8274 Y1582.0424

This is changed in SheetCam.

The other thing i will suggest is to use my Post Processor. here is the link.


Ross.

I haven't got a torch height controller
Quote from Ross on November 19, 2020, 7:45 pm

Here is your tap file back, I redid it with my settings. so you can do a dry run to see if it works then do a cut if you are happy.

Plus Arie said your feed rates are not correct and this will have to be addressed as well.

I didn't look at that side of things, but i did see your piece height is not correct and should be 3mm and cut height should start at 1.5mm

On thin metal .2 of a second is long enough for your piece.

Good luck, Ross.

I set the p.s. height and cut height but the funny thing is it cuts at Pierce height when I first start it goes down to the 1.5 spaces and then goes up to 3 mil so it's in Reverse which is weird and it happens to every file I have tried to cut these easy access does not move up on rapid and I have put all the settings in sheetcam exactly what you show dim photo has not I did all that before I start to cut I have done a few other jobs and they're all the same but I will try your post processor but I haven't got torch height controller will it still work and what is the feed rate meant to be set at I'm new at this don't know what they that means and thanks for helping me if I didn't have used to help I would be pulling out my hair and I haven't got much to pull out
 

breezy

Moderator
Simon,

Your X & Y are set at feed 9000 mm/min, acceleration 900mm/s2 which 10%, so I would try 50mm/s2 (which is 1/10th of what is currently set) for Z because your feed is 450mm/min.

Before you start cutting you need to make sure that the settings for your axes are suitable for your hardware. That is why I asked you to do that test with your Z axis.

Regards,

Arie.
 

breezy

Moderator
Simon,
what is the feed rate meant to be set at I'm new at this don't know what they that means and thanks for helping me

The settings in MASSO are the rapid rate for your machine, so when MASSO sees G00 it knows to move at the Max Feed Rate for that axis.

When you are cutting you need to set in SheetCam the speed you want to cut at and that depends on the material / torch. Then SheetCam produces code with the speed set as Fxxxx

Regards,

Arie.
 

simongts

Simongts
I've got all that set in sheet cam and when I run the simulator in sheetcam I watched the z axis and it raises up and down on rapid moves and goes to 3 mm Pierce and down to 1.5 mm cut seems to be all working in sheet cam
 

simongts

Simongts
Here's a little bit about my machine it is a plasmacam which I retrofitted with the masso with Nema 23 stepper Motors and them settings is the only way I can get it to move fast enough can you suggest what I should have all the Motors settings the X and Y are Nema 23 Z is I think it's a Nema 17 whatever plasmacam has on their Z that's the only original motor I kept
 

simongts

Simongts
Quote from Ross on November 19, 2020, 7:24 pm

Hi Simon, this is how your tap file looks like,

N0450 M05 (---Torch OFF---)
N0460 G00
N0470 X465.9210 Y499.0805
N0480 (---Go to pierce height---)

It needs to have a lift of the Z axis at the end of the cut, it will look like this. N0380 G00 Z45.0000

N0360 M05 (---Torch Off---)
N0370 M666 (---THC Off---)
N0380 G00 Z45.0000
N0390 X199.8274 Y1582.0424

This is changed in SheetCam.

The other thing i will suggest is to use my Post Processor. here is the link.


Ross.

hi Ross I tried your post processor and I'm having a few issues this is what's coming up. no120 g38.2 z -46 f1100.0 alarm touch error I haven't got torch height controller how do I change your post processor to suit not having a torch height controller
 

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