Ok so I have been cutting these brackets for a long time and sometimes have trouble, normally wore consumables.
machine: Razor weld 45
45 amps 110IPM .06 CH .3 PD 75PSI on gauge
I recently switched to a H/T torch a few weeks ago. When I first switched I had problems as this torch required a much shorter PD than the RW torch did. I found .3 was good for 14 ga
So I have a 168 of these brackets to cut and installed new consumables, verified correct cut height and regenerated my desiccant. work clamp on piece. On the holes it will pierce and cut good or it will pierce and the torch will shut off, but it still moves likes its cutting the hole. Some times it might just pierce the hole and stop and throw a error. I dont see any pattern to when it happens, and once going it cuts fine.
Any ideas as to what I am missing? I am thinking of setting PD down to .2
Curiosity how did you determine that you had to reduce your pierce delay? I am thinking that the XR is capable of shorter delays than the pro.
I used the rw45 for about a year on a pro table and never need shorter than a .5 delay. With my hypertherm I am able to consistently cut with .3 if needed. 22ga is all I have seen a need for that short.
Sounds like you are having a issue with the plasma. I bought a swirl ring new that was defective and I would get misfires often. Sounds like you are flaming out maybe due to a slow lead in? I can see it trying to continue to cut the holes because it cuts so fast fire control may not always catch it.
Testing for me I would make sure the was no feed optimization or path rules that could cause you to cut the material away to fast. I often cut 14 ga at 35 amps with no issues. The new torch may be blowing away your material. Then I would do complete new consumables to eliminate a defective swirl ring or something. Then go back to the old torch to make sure it isn’t the plasma.
When I first installed the new torch I could not cut any old files. I posted it here when I was having trouble and either some one told me or I stumbled on it, I lowered the PD to .3 and it worked.
I still have more testing to do, but I have a couple of things I need to do first. I was able to get it to work half way decent by turning off THC.
I also seem to be having trouble in that it will pierce fine, then right when it starts cutting it does not cut all the way through for maybe .2" then will cut the rest of the (perimeter)fine.
I am wondering if I am getting some EMI.
I did swap out the brand new consumables for another set and that also helped.
I did get all of them cut but they need quite a bit of clean up.
I got you. I am actually surprised the the rw can pierce at .3. .
I will put a small bug in your ear. I have always pierced 14 ga at .5. I was helping a good friend set up a pro table it acted the exact same way as you described with. The small portion not cutting. We found he required a ,7 delay with a similar machine as mine… it requires time to go from pilot to cutting are is what I am thinking.
All that to say have you increased your pierce delay and tried?
I see no problem if it works… you definitely have another issue causing something.
The reason I questioned it is because you mentioned it piercing then not t cutting completely through for a short distance.
Here is a picture of his cuts. He bumped up to .7 and it fixed him… you say you are losing arc. Sounds like it is burning material away to fast. Like your speed is to slow maybe?
