I am having some issues with cut quality. The first several cuts I made were as clean as I could ask for. Then I start having some cuts be good and smooth then some look shaky and then some beveling. Here is what I have and what I have tried.
-14 guage mild steel
-.60 shim from torch to work piece
-plasma set to 30 amps
-material clamped down
-grounded to material
-air pressure is good and dry with no pressure drops
- table and slats are level
-nothing loose in the gantry including set screws, bearings ect.
-torch holder is good
So I’m at a loss of what to try next. I have played with the feed speeds up and down and it doesn’t seem to help any. Im just baffled because it did cut well on the first 5 pieces or so.
Any suggestions would be great!