I’m planning a Dynatorch project on 12ga mild steel and (you know me …) I suspect I might prefer a fine cut nozzle. I have more questions than answers.
Comments/thoughts about using a fine cut nozzle? The “regular” 45A set had a kerf of about 0.085" the other day. IDK if that’s typical or if it was a little large because the nozzle was wallered out …
If I buy fine cut nozzle parts, do I need the entire set of five parts in the “fine cut” variety? Or just the nozzle/electrodes?
Does DMS have any of those parts, specifically the retaining cap and swirl ring, which I’m guessing don’t particularly wear out?
I bring my own shield, nozzle and electrode. If the shield is chipped then the dross tends to stick to it. Electrodes are the same; the shield and nozzle are different. The cap and swirl ring I use the one on the machine.
In terms of accuracy, the performance is bad with all consumables because the metal expands when it heats up and the plasma behaves… well, like plasma. 12 gauge mild steel is the perfect material for these fine cut consumables. You can use the feeds and speeds from the cut chart. You will see the best-case scenario. If you like the results and try different materials in the future, then you can lower your expectations accordingly.
Chris, we do/did have some of those items. I would recommend buying extra 12 gauge to do testing on for the best cut scenario. You will need to dial in the height control to what looks about right as we have not fully diagnosed the issue with the arc height voltage, but it is linear & reproducible.
