I’m trying to learn and get my table up and running. However, I have no idea what to set feed rate to. I assume it has to do with a combination of your plasma cutter amps and the thickness of the material. For some reason the tool I created in F360 is at 40 in/min.
Is there some kind of data collecting process people go through changing the feed rate with the same tool path until they get what they feel is good?
If you have the patience to look on this forum long enough there are older posts of peoples excel spreadsheets of spreads w amperages they run at.
Well that is good and all, the best thing to do is after you assembled your table is to use the straight cut feature in fire control and to play around. Try cutting a 6" line into some scrap and see what works out the best for you. Couple of fridge pops and you’ll dial it in pretty close.
Some major factors include:
-Moisture content in your compressed air (get an air dryer)
-quality of consumables (with the razor weld I recommend using the powermax 45 hypertherm, they work with it)
-air pressure and having adequate storage (either have a good compressor or a junker with a big tank)
-Ipm (preference based i would say, but if you go to slow & high amps you pour heat into the metal and can cause warpage)
-type of material (stainless, galv, black, etc)
-Typically metal signs I do are 14 gauge, and I run my razorweld 45 @ max amps, 75 psi, 70ipm
-for hvac duct work or light jobs 26/28 gauge I run in the middle for amps (30 perhaps), 75 psi, 120ipm minimum. The thin stuff you go too slow it’ll warp real bad if you have a lot of detail in one area
I keep my air pressure always the same, one less variable.
Cheers, best of luck