I have had the pro table for almost a year and have as many no go as I have had good cuts. Not the tables fault, I do think its a great entry level table for the price, in fact I think langmuir did a great job packing is as many good features and quality as you could get for the price. Sometimes your the one to have a lot of the things that can go wrong actually happen with a cnc table and all the support equipment like air supply and multile filtering, plasma cutter, consumables,cabling and software. I know these are inherint to all levels of manufacturing small and large scale. My main issue is arc loss during a cut and recently no primary arc after IHS. Ive changed consumables, checked cable conections, dry air, grounded table and frame, arc timing and even changed the mother board on the plasma machine (Razorcut). Somthing I noticed was if a current cut didnt work I tried older random files from Fushion I made almost a year ago and they worked every time. I have reset Fushion defaults, made sure im in the right plane, checked and rechecked my post settings, used default tool settings but still sometimes it fails. I just did a drawing with a lot of curves and used the spline tool over a canvas and the cut failed so I used the 3 point arc and it cut fine. Since ive had so many fails its hard to pinpoint the problem.
I will probably swith to Sheet Cam and a different Cad even though I like Fushion since my account will soon expire.
Has anybody had an issue like this with older and newer files in Fushion?
I have spent a lot of time on this forum and its been very helful so thanks in advance.
That sounds like too short or long of a pierce delay (this is usually accompanied with an error in FireControl) or insufficient air pressure getting to the torch.
Many people have reported that the internal pressure regulator in the RazorCut becomes faulty. Some replace it, others bypass it all together.
I would say that was random. I can’t think of why that would interupt the focus of the gcode. There is a very high possibility that you might be having EMI issues or disruption of the signal from the computer thru the USB cable to the enclosure.
Suggestion: 1. Try another computer,
2. make sure the computer is fully charged or
3. use the computer with power plugged in and the ground plug removed (the computer might be limiting “resources” and that might be to choke down the communication thru the USB connection).
Yes, and it usually relates to EMI, air or electrical connection somewhere.
If you have the hobby account, it is renewable. But for peace of mind, I think it would be interesting to see what happens with the free trial of SheetCAM with your arc and spline example to see if that varies your result.
As far as variability/difficulty of reproducing the problem: That is always the WORST whether it is a tooth ache, car engine noise or CNC Plasma cutting.
Thanks Jim
I use a computer in my office so its not on my table. EMI was a recent consideration so I ran some ground wires which I thought helped until it didnt. Using old files led me to think it was a setting somehow in Fushion since and old file worked right after a new one didnt. I am keeing everyhing to default regarding peirce delay .5 speeds and no extra stuff. I took the reg out of the plasma and keep it up to 70psi and up when cutting and through a desicant, motor guard and a few regular water filters. Dry air this time of year is easy to make. I isolated the control box from the table frame with rubber pads and oversized holes thru the table so the bolts wont touch. If you dont think its software then I have to go back to hardware which is to bad since that can get frustrating and thought maybe just using a different program might be a final fix, allthough I will robably try it since Ive tried so many other things. I will focus on keeing any wiring of the frame or each other. The mouse and control box USB cables and monitor cable are straped together running to the shop from my office desktop comp and I have the one USB cable straped on plastic holders mounted to the cnc table running to the table controlbox.
Wow! You have tried lots of things.
Recently someone was having really strange sawtooth cuts. He finally isolated to the wireless mouse. Almost any radio signal could be the issue. I had an issue stepping over the USB cable while holding a metal crowbar that had been holding down the metal being cut on the table. Obviously it got energized and when I stepped over the cable, immediately the torch stopped moving, FireControl continued on the cut path even though it was no longer sensing that the torch had stopped and the plasma stream continued. Weird stuff can happen.
I then thought I had everything worked out and on the same project, it lost steps and resulted in the image being shifted. This resulted in the torch re-cutting some areas with another image that was suppose to be about an inch away. The only thing I could think was that it might have been the USB getting low priority allocation. I plugged the computer in and re-cut without another problem. So the same project that should have used a 30x30 inch piece of metal, used three times that. Very frustrating.
So you will figure it out but really try to see if you can reproduce it. My issues (in retrospect) turned out to be easy to figure out because there was nearly instant cause and effect. Yours is not so instant, sounds like.
Hopefully others will weigh in with their thoughts.
You want to keep that pressure at or above 75 while cutting. That pressure reading should be at the plasma, or as close as possible.
you say you took it out, did you mount it on the back of the machine?
Is it before or after the motorgard and other filters?
If you have a Razor cut 45 there is a button you can push on the front that way you can see the air pressure on the gauge like it was cutting.
There is a video of how to remove the razor cut cover, 1 or 2 srews under the handle and a few on the side panels. ( i would check but im not in my shop) I removed the air filter and ran straight to the valve using the conectors already in the machine since your removing a couple of them. Air comp-standard water filter mounted on my sound dedinig enclosure (62db) then 3/4" air hose to table mounted desicant filter-Motor guard filter and one more standard filter but just a 1/4" one with a guage and then into the plasma cutter and connect to the air valve on the board. All conected to each other with Poly tube. Under 70psi or close to it will affect more of cut quality than stop the arc command because of low psi, which isnt my issue. After reading Jims response im learing more about EMI and how to ground things better since it might not be a software issue, which I was hoping since it would eliminate a mechanical \ electrical issue which can be more frustrating if you cant simply recreate it to find the failure.
If you are convinced that old files work and new files don’t, I’d continue to concentrate on software, changes to default Tool settings you may have made, different settings when you Post Process, etc.
Some folks have had issues after updating to newer versions of Firecontrol. You might try going back to an earlier version. If you do, make sure to go to the actual file folder and delete it before installing the older version.
If old files cut fine and new ones don’t, the problem is in Fusion.
Something changed in your Fusion settings, either you changed a setting or an update changed something.
Post some of the code from an old file and a new one and we can see where the difference is.
Trying to find problems with Firecontrol or the table wiring is a waste of time, since old files cut fine.
Of all the variables in the set up and support equipment and all the things I have tried over the ast year including support from Jasic sharing pics and video and having them send me everything but a new torch cable to rebuid my plasma cutter, the software, whether coincidental, is the only thing that I can say that I noticed a change in something. I was plugging along at first learing the table and peramiters for different thicknesses and making my own cutt charts and fine tunning the cut volatge settings and making better cuts, just straight cuts. It was after i created my own custom tools In Fushion that after I noticed this happening with lost secondary cutting arc. Only recently getting no primary arc either and just not moving past a start positon. every time this has hapened, I load an older file of simple files I made when I first got the table like lettering and simple squares with circles and shapes and they cut everytime. I have since deleted my custom tools and just use default tools and settings. when it cuts, the cuts are good, not a problem once its cutting. I have been getting info on EMI which is said to be 50% controlable and 50% mystery so im going to searate some USB cables I have running from my shop to office and move them away from the table and move my cutter from under the table thats in plastic storage bin with the ends cut out. Again, could be a coincedence but I havent chenged any other physical thing exept speeds, feeds and metal thickness. Ive worked many years as a Millwright so as long as think the equipment was built right which in this case I do since there are many with little to no problems, I will keep trying. Its just frustrating when you have high hopes for that you cant rely on working when you need it.
Thanks for your rely. Im impressed and apreciate the time people put into helping others on this site.
Are we talking air filter or Regulator?
There is a small particle / water filter attached to the air regulator inside the machine. You can remove that and plug straight into the air valve on the machine. Now you can control the air pressure from an external source from your air compressor.
So you removed the regulator and filter from inside. Got it