I’m new to laser machines and the lightburn software. I have a sculpfun s9.
I have been trying and trying to cut with 2mm plywood. I still have had no success. I have watched tutorials, YouTube videos etc and have set settings to 2-3 and 4 passes. With speeds of 150, 200. And power of 100% but it still does not cut through. Everyone else seems to have no problems with these settings.
I almost got through with 20 passes, 150 speed, 100 % power but going off everyone else’s videos I watch they can get through with 2-3 passes.
I have noticed when I do 2-3 passes it prints dotted lines not a bold line.
If anyone can help me out I would be greatly thankful and appreciate your time.
Mel as jack mentioned the specifics are important. Although i dont have scuplfuns’ machine i do have the S9 laser head and for the most part i have been able to cut through everything right up to 8, 10 and almost 12mm thick at speeds of 6 or 7 mm/s. The largest number of passes was for MDF. I had maybe 30 when i tried that. Sounds like the actual machine needs some tweaks. Are you using the aluminum spacer they sent to set the focus?
Thank you for your help, still struggling at the moment. Wondering if I need a wire bed underneath my wood? I have just been placing the galvanised sheet provided underneath my wood. Is this okay or do I need a honey comb bed/galvanised bed?
What you could try is making a bed of nails fixture. Not sure what size work you are doing but take a piece of the 2.5mm plywood or thicker, you can buy it at a dollar store and in light burn sketch out a square or rectangle of the size of the plywood (Layer1)and place a bunch of .040" holes in it (Layer2). The holes can be on a grid or randomly sequenced in and around your rectangle or square. Shut off the output for your sqaure (Layer1) and Run the program and let the laser pierce a bunch of holes through. When done you can hammer in a bunch of Brad nails to form the bed. I have been using this alot and it eliminates the burn marks under your work if you a cutting through.
I have been using underlay or ring nails they hold better. Thicker plywood is better as it will eventually get destroyed .LOL It would also be a good idea to keep the galvanized sheet down and put this on top!!