I’m having a heck of a time cutting through 3mm Baltic birch plywood. I have run it at 100% power at 2 mm/sec , 6 passes, and not getting cut throughs. I was just wondering those with 50 watt lasers what settings are you using to cut through 3mm Baltic birch plywood?
I’m using a 60 watt (real 60 watt tube) at 25 mm / second and 65% power for a clean single-pass cut.
You’ll want to measure your tube and use TheGoogle to determine your true power for that laser. You’ll also want to locate the maximum recommended current draw for that tube. If you don’t have an ammeter in series with the ground lead of the laser tube, it’s a valuable accessory for getting the longest life from your device.
Running your laser at 100% means you’ll be reducing the lifespan of the tube. At the speed and power setting you’ve noted, it’s possible that you’ve reached the end-of-life for the machine.
100% on both Min Power and Max Power? Or just Max Power? Your profile says, “Chinese Laser” for the machine type, which is like saying, “my car has wheels”.
If you have a Ruida controller, at or below 10mm/sec, the controller uses the Min Power value only, so if you are doing really slow cutting, and aren’t setting that, that’s your problem. If you cut at 10.1mm/sec or higher, the controller ramps from Min Power up to Max Power as you get to the requested speed.
This lower value is also commonly called ‘corner power’ as it’s the power setting used when the controller slows for sharp corners.
Oz, I do have both settings at the same power level. I am just curious as to what others with a 50 watt Chinese laser are cutting 1/8 Baltic birch plywood with. I want to find out if I am expecting too much or this is common or am I around the settings. Nothing scientific, just seeing what others with the 50 watt are doing it with.
Make sure your focus lens is in correctly. It has two sides, a convex side which is a slight hump and the concave side which has a slight indent. The convex side should be up in a concave side should be down.
4.5mm ply@18mm/sec 65%power one pass.
Are you sure that you don’t have a ply issue. I had a bad batch not so long ago and I had terrible issues cutting it. Would take 3 to 4 passes but then the cut edges were burned so black leaving black soot all over the face of the ply and not the nice golden brown I would get normally.
I changed the batch and I am back to good cut most of the time.
It was upside down, Imagine that. What is the best way to clean a lens? Mine has a lot of buildup on it now-I’m going to try and clean it with denatured alcohol. Its caked on pretty good since I have been playing around with it in wrong for a couple weeks at very high power
FYI, I know you had your problem fixed, but I thought I would add something that I ran into yesterday. I was trying to cut through 3/4" Spruce, and after 10 passes at 80% it wasn’t cutting all of the way through, not even close. I changed the cut settings so that the minimum and maximum was 80% and it blazed through it in 2 passes.