Hi there Wbittmann; Yes did some more testing, replaced all consumables with brand new. No change! Tested the height with gauge blocks and really 10 thou variation, won’t make that great a difference, so no real joy there. Suspect it is the THC, so am going to reset the software back to IHS only and pull pins 5 and 6 from the CNC port and see what happens. If I can get it back to where it was with no THC, then I think I am on my way to find a different solution.
1 Like
Ok let me know how that goes! I plan on trying to use IHS alone for my next cuts as well. This seems like the next logical step. Hopefully i can get some useable cuts. Update me if you make any progress. Thanks
Tried pulling the pins from the amphenol plug and all new consumables, still have same issues. Going to try to borrow a similar plasma unit and test. All consuming time but not giving me definitive answers 
What is this?
CPC connection
1 Like
Much of the same here. What was the goal of messing with that connection? Just to disable ?
I’d be interested in seeing the actual g-code that both of you are using.
Whittman indicated that he didn’t have the issue when he ran someone else’s file, so it seems the issue is related to a CAM setting error.
There is a lot of speculation and wasted testing, when the cut file could tell us what the real problem is. The table may be doing exactly what it’s programmed to do.
Also- are either of you using “nominal voltage” in Firecontrol?
1 Like
For sure ill share my gcode later today. Im not sure honestly
1 Like
Hi All;
Tinman you are correct Amphenol (CPC) plugs are used for the CNC connection port to my Razorcut 45.
Wbittmann, correct, I pulled the pins so there was no extra noise or chance of confusion. So IHS only on second set of tests.
ds690 thank you for the review offer. I was using IHS only, then installed the THC, this is when the cut though problems became more pronounced. I have attached code, if it is OK, then I need to take out other variables.
test_cut_6mm.tap (934 Bytes)
The only real issue that I see with your settings is the plunge rate. That is the speed that the torch lowers from pierce height to cut height, after the pierce delay is finished. Yours is still at the default Sheetcam rate of 100mm/min and it should be at least 1200mm/min.
I would bump up the pierce delay to around .9 to 1 second for 6mm material.
1 Like
OK thanks ds690, I will give that a go and post back.
1 Like
Hi ds690;
Tried your suggestions, see attached file. Opened up the cutter re-calibrated the air pressure on the bench to land on the 74 PSI. Still no joy.
2test_cut_6mm.tap (936 Bytes)
1 Like
What steps did you take to recalibrate your air pressure?
Hi Wbittman;
Several people on this forum have said the Razorcut is rather finicky about air pressure. I open up the machine ran air to the unit and adjusted the internal regulator. Before this I noted any drop when actually running, in my case it was about 5 PSI, so I adjusted the static pressure to approx 76-77 then closed up the box an lit it up.
I have a loan of a spare machine torch in next day or two, (160M drive) but at least it will remove one more variable.
Ok thanks for that tid bit. I have been noticing solid pressure to start with ≈80psi or a little less which is what i set my regulator to. I do notice a larger drop than you of about ≈15 psi. I will have to look into this. Thanks
If your getting a 15 psi drop you have a air restriction some were or a bad regulator.
2 Likes
Ok im going to check the internal regulator when i get time. I have a 60 gallon 11.9 cfm compressor with a desiccant filter in line. I have 1/2” quick connect line run all the way to my plasma cutter so I am pretty confident in that.
Well I grabbed another torch that was confirmed working prior. Using IHS sensing only and new consumables, I see exactly the same issue. DS690 I don’t think the cut speed is too slow, so unless you can see something else in the code I can only assume I have something really gone wrong in the table or the plasma machine is sick. Anyone go other ideas to test/try?
If not already mentioned, post a video of a cut so we can see what is going on.
Record with your phone, upload to YouTube or Google Docs, post the link
1 Like
Thanks Sticks I will try to do that. Tried another cut yesterday slowed down to 860mm/Min (about 33IPM) it kinda cut with a lot of dross and did not drop from the sheet. I am going to borrow a colleagues machine (same type) see if that is the issue. Wbittmann have you had any further luck on this?