Torch Height Control (THC) Setup

Pierce height: Follow Hypertherm cut charts. Too low = blowback; too high = failed starts.
Cut height: Critical for edge quality. Always match chart value, then fine-tune.
Cut volts: Start with Hypertherm’s recommended voltage, then adjust +/– 1–2V to minimize bevel.

Verify ohmic sensing: Paint, rust, or mill scale can give false readings. Keep tip and work surface clean.
Test with scrap: Before a production job, test pierce height and volts to confirm cut angles.
Monitor torch dive: If torch dives mid-cut → usually wrong voltage, noisy signals, or grounding issues.
For CandCNC systems: check FeatherTouch wiring and RS485 hub stability if THC is unresponsive.

Keep a saved set of cut parameters (“golden settings”) for each material and thickness you cut frequently.