45xp cutting 10mm steel

[mcmental]

Hi there, im just trying to do some test cuts on 10mm steel plate before i cut out a circle pattern in the plate i need.
im using commandcnc, ive used the cut settings as per manual but it seems to be building up slag and causing the torch to drag.
anyone got any tips n tricks for their cut settings please?

[weldguy]

I have found often that despite entering the setting from the Hypertherm chart in your machine, the actual results are slightly different in terms of actual pierce height and actual cut height. I would double check with feeler gauges that the pierce and cut heights are correct when piercing and cutting. Also if you find that the slag is building on the tip during the piercing of the material (because it is thick material on a low amp machine) you can increase your pierce height so the slag is less likely to stick to the tip. I would then use a longer lead in so the THC can get the torch down to the proper cut height during the lead in before the torch gets to the actual profile it is cutting. Let us know what you find.

[mcmental]

Thanks for that, the machine hasn’t been used for 6 months.
I’m going to replace the consumables and make sure I have good earth to the part as well as following your advice

[weldguy]

New consumables and dry air will be key to good success on your thicker materials. Good luck.

[adbuch]

Also having your height control properly calibrated and cutting at correct speed. Cutting too slow can result in excessive back side dross.
David

[mcmental]

I thought I’d try some 4mm plate, I’m guessing it’s something to do with the torch etc as when I disable the torch it runs the program but as soon as I enable torch it fires and stays still.

[mcmental]

Tried again and I got some stop start action

[adbuch]

I thought I’d try some 4mm plate, I’m guessing it’s something to do with the torch etc as when I disable the torch it runs the program but as soon as I enable torch it fires and stays still.

Your control program may have something that needs to detect the torch firing before moving. This would be a setting. Plasmacam has a similar setting. So for the Plasmacam table, it waits until it detects the torch firing, then waits the specified pierce delay time, and then the torch starts moving.
I am not familiar with your control software, but perhaps Tom or one of the others will know what setting you need to use.


David

[mcmental]

I thought I’d try some 4mm plate, I’m guessing it’s something to do with the torch etc as when I disable the torch it runs the program but as soon as I enable torch it fires and stays still.

Your control program may have something that needs to detect the torch firing before moving. This would be a setting. Plasmacam has a similar setting. So for the Plasmacam table, it waits until it detects the torch firing, then waits the specified pierce delay time, and then the torch starts moving.
I am not familiar with your control software, but perhaps Tom or one of the others will know what setting you need to use.


David

wait for signal.jpg

Thanks David I’ll take a look

[mcmental]

So I checked grounds and consumables etc and started to go through the “test” setup, I found that 1 of the wires going to the PWM module had come out.
It’s working again now

[adbuch]

So I checked grounds and consumables etc and started to go through the “test” setup, I found that 1 of the wires going to the PWM module had come out.
It’s working again now

[tcaudle]

All CommandCNC systems use the arc CURRENT (not volts which only shows thatht he torch is fired, not CUTTING metal) It has to come form either the Plasma cutter itself or using a current sensor in the workclamp circuit. (Our DCP-01 is an example of that)
If you fail to get ARC OK two things hapopen: The HOLD signal goes active and the ARC OK LED ont he PWM AND the screen do not com eon.
We use the arc ok ("Transfer" or OK to MOVE) signal because its an indication that metal is actually being cut/pierced . So if you are cutting and it stop drawing amps (maybe you ran into a void or the edge) motion stops . it also stops premature motion before there is an actual arc to the metal .