Hello
I need some help. When I am cutting the first cut is always fine the 2nd cut a bout 3rd of the way the arc stops. I have changed heights,clamp location, cutter tips . I am using fusion to program. And I have Powermax45 SYNC with the ls-thc The weird this is before Christmas it was fine and I was able to cut a lot of stuff. I don’t know what to do
Pierce, hight .140 Cut high is .05 cuts speed 220ipm
Kerft .021
Are you sure the machine is not set to continuous mode? The knob on the front should be in the second position
Try a longer pierce delay..07?
Put water in that table or you will be starting another thread.
Is that a ring for an ohmic sensor?
Remove it, unnecessary on these tables.
Also not mentioned is whether you checked your air supply (if you left it off or something) or your pierce delay length.
If it stops midway through a cut loop, I would suspect an air supply issue.
That’s a Becks Armory torch holder. Very nice.
Yeah it is nice for sure, I had one on my Crossfire Pro.
But he’s got a metal ring around his retaining cap.
Air is a 60 gal 11.8cfm at 90 psi
Pierce time is .1 S
Turn it up to 0.5s
0.1s is too short; you would’ve received this error in Firecontrol too but didn’t mention it to us
On the fire control screen when dose the thc light light up is it all the time or when firing
I haven’t used a Langmuir in awhile, but THC will show working after a short delay of cutting as it establishes a voltage to reference.
It’ll also disable itself in situations where speed is slower than 80% of the base cutting speed of your cuts.
Also, how did you confirm correct pierce height and cut height? Did you physically measure it?
For the height, I just programmed it in fusion and then the torch goes over touches off and backs off and starts cutting
Doesn’t work that way exactly.
When IHS occurs, it probes the material, zeroes itself, then jogs upwards by your backlash value and pierce height, and ignites the torch.
However, there can be small deviations from one setup to the next showing discrepancies as much as .04” or more on different setups.
I ran a programmed cut height of .02” to achieve a physical cut height of .06”.
This was done only after running test cuts, pausing, and measuring with gauges.
There’s a possibility that you fat fingered something that prompted this issue today. Why not share the g-code you had issues with? It’ll be in your NC file as we speak.
I would be lying if I said I never made a mistake myself - the last one was today when I cut out a dual fuel can carrier in which I chose the wrong profile that had the wrong kerf setting. This lead to my 0.074 wide slots to be about 0.069 forcing me to slightly grind down the tabs that go into them.
One thing a lot of people accidentally mistake is using hundredths versus tenths for their pierce delay, as they’re also thinking about pierce and cut heights as well.
@shmac2008 those both looked really good.
Could you post your NC file for one of these that cut out correctly without errors?
I will post the code but it’s on all my programs today . Went from trying to fined the best feeds and speeds in 2 different plate size programs to me trying to to cut a DXF import just to trouble shoot
