Using Lightburn 0.9.16 on a MacBook to control a Ruida Chinese x700 (Black/Red), I’m finding unexpected behavior with the Min Power setting. I believe I properly understand the setting’s purpose (for ramp control in tight areas like corners) so I normally have it set just above my personal laser/power supply’s threshold (~12%). This has usually worked fine, but recently I discovered that in some rare cases the Min Power is dictating the laser’s output across an entire design, even over straight lines. I believe this is a bug and that it happens whenever my speed is set below 10 mm/s. For instance:
- Case 1: Max Power 50%, Min Power 12%, Speed: 12 mm/s. I get a deep cut.
- Case 2: Max Power 50%, Min Power 12%, Speed: 8 mm/s. I get a superficial engrave, with no cut power, and I observe on my ammeter very little power draw. I’d expect more cutting power than Case 1, not less.
- Case 3: Max Power 50%, Min Power 49%, Speed: 8 mm/s. I get a deep cut (unsurprisingly with burning in the corners) and the expected high ammeter reading.
Sorry if this has already been reported–I tried to look–or this is the expected behavior I’m misunderstanding, but as I say it seems like a bug. Thanks!