I have just bought a second hand rdl4040 50w CO2 laser engraver with little use on it, and I’m having problems with the cutting edge having lines every 5mm. I read the post below, but im not sure which wheel to adjust/reinstall.
Having just realigned and cleaned the mirrors and got the machine to start cutting
My honeycomb only lasted a day or two before I swapped it out for a sheet of rolled steel. The honeycomb totally ruined the air flow through the machine.
I’ve never seen a reflection that far across the material? Where do you focus and what lens do you have.
These anomalies start large and grow smaller… The beam is growing once it passes it’s focal length and a reflection adds to distance. If it’s 3mm, then it’s 6mm back to the top of the material, best case…
It looks like a mechanical issue. What axes is this, does it occur on both axes?
Hey Rob, had a bad week this week and totally forgot to do this in testing the machine (even though I do know to raise and put a bit of wet kitchen towel underneath as per a trotec video I watched). Proper cheered me up mate seeing the nice clean edge. thank you. was not a lightburn/machine problem, was a me problem!
I keep mine because I have a 2Hp blower on the exahust and it has enough power to turn the bed into a vaccum table. I cut a lot of paper templates so I built a jig to hold the paper and when I block off the rest of the bed it supplies enough vaccum to hold the paper in place and I can still use air assist for the cut.
Andrew, good luck with the new machine.