Hey y’all, new to Lightburn. I picked up a Redsail clone machine 20X28 bed size - 60W. Having some questionable results…
I can pulse the control panel laser (power 80%) and get ~ 25mA output from my ammeter.
I create a box and set it to 6mm / sec and 100% power, and the ammeter is only showing ~ 5mA power but it’s cutting through the material.
Any suggestions or ideas? I don’t have auto Z and don’t know if the machine can sense material height and adjust cut power automatically? I am still trying to school myself on proper machine settings in LB software
That was the first thing I checked. I have it set to 15% min and 100% max and it’s still only showing 5mA at the meter. It should be higher than that, no?
Power can also be capped in the controller. Don’t remember where it’s at, but it overrides anything sent to it via the software. Possible the previous owner capped it for the material he was working with.
Thanks for that! Yea, turns out if you have a max @ 100% and a min @ 15% it will cut the square out at a low setting. I upped it to both 65% (showing ~ 18 mA at the meter) and it cut through no problem.
25mA is pretty high for a 50-60W tube. An SPT 850mm tube rated at 40W achieves 40W at ~16mA.
If you can find the tube spec and adjust your LPSU trim pot to ~2mA below the maximum, you will get consistent results and the tube will last longer than 100 hours, which is about the life you will get pushing it to 25mA.