I have had my crossfire pro up and running for about a month and its been working well until now. I have a delay in the literal piercing of the material so my cut doesn’t start until after it has moved on in the pattern. The IHS appears to be working correctly and it fires the torch just fine. I don’t know if the output on the Razor cut45 is low or what. I have the knob turned up to full, I have adjusted the pierce delay/ heights etc and still have the same problem. I am cutting 14 Gauge steel. Help Please and thankyou! Chad
PS, I did read the stickies above and adjusted the bearings on the IHS along with checking cable slack Toolboardsample.nc (7.1 KB)
Yes, The same piece material I used last time is the same I am using now. The pattern is the same as well, i just added more bodies to cutout in Fusion 360 and used the same settings(maybe adjusted the speed from 80-70ipm). Consumables appear to be good and were cutting perfectly last time used. I did notice the IHS not appearing to be going all the way the material for the THC if I’m saying that correctly. Before posting I checked and did all the things listed in the sticky file and It appears to do the “touch off” just fine
I agree with you, that’s what I was originally looking at and noticed. Once I went through the procedures outlined in the stickies and put the torch back on it appeared to be touching the plate and then moving back up to fire the torch. I thought IHS was automatic in finding the height of the material, so how can I adjust it more. I am assuming you are talking about loosing the allens and dropping the torch body down
It isn’t the cause of the torch not piercing, but there are a few issues with your settings in that file.
The first issue is that you have both the pierce height and cut height set to .040". Pierce height should typically be 2.5x the cut height.
The second issue is the springback and backlash of .040" is excessive. .020" of that is set by the post processor, but you can remove the other .020" with your settings in Fusion.
The third issue is that 1 second is a very long delay for cutting 14ga material. You can experiment with that and find out what works after resolving your other issue with piercing.
The fourth issue is that 70 IPM is way too slow for cutting 14ga material.
I wasn’t able to look at his file. Been thinking he has multiple problems. Main one is why but he said he wasn’t touching off so I am guessing trashed consumables.
I agree also if he isn’t touching off. Making it cut to high will destroy them as well. I ran a rw45 for almost a year seems the consumables are way easier to jack up than my hypertherm.
Yes, I adjusted most of those settings looking for a solution thinking that increasing the pierce time would overcome the issue. So that I’m at square one, what do you suggest for the exact settings
So you know how the system works, I’ll provide a somewhat simplified explanation of the IHS. These commands are copied from your file posted above and I have provided a description of what each one does in parentheses next to it.
G92 Z0. (sets the Z axis zero at the current position)
G38.2 Z-5. F100. (probe the Z axis down, up to 5 inches, until the IHS switch opens)
G38.4 Z0.5 F20. (move the Z axis up until the IHS switch closes)
G92 Z0. (set the Z axis zero at the current location)
G0 Z0.04 (IHS Springback + Backlash) (move the Z axis up by .040")
G92 Z0. (set the Z axis zero at the current location)
G0 Z0.04 (Pierce Height) (raise the Z axis to pierce height)
M3 (fire the torch)
G4 P1. (pause for the amount of time specified after the P)
G0 Z0.04 (Cut Height) (move the Z axis to cut height)
In order for that to work correctly, the Z axis has to probe the torch down to touch the metal and still have enough available travel to keep the Z carriage traveling down to open the IHS switch. If the Z carriage bottoms out before the torch touches the metal, it will open the switch and provide a false Z zero height to Firecontrol. For that reason, I recommend having at least a half inch of remaining downward travel when the torch tip hits the metal. You can do that by jogging the Z axis until it is about 1/2 to 3/4" from the bottom and then loosening the bolts holding the Red piece to the carriage and slide that down until the torch hits the metal. That is the correct height to have the Red torch mount.
So in the 2d profile in Fusion 360, there is a tab where you can select clearance, retract, and top height. What should they be and do they affect any of the things we have talked about?
Thankyou very much guys…I changed the settings like you suggested and the tip and seems to be fine. I will go back and look at some other code I used and see what I had the pierce height at. Also ordered some extra consumables. I examined the last “good” cut and found a bevel instead of the clean cut it should of had. That was a missed clue. I haven’t used my hypertherm in a few years but remember that happening now that I see this