I have a Blue and Grey OMtech 60w 2028 laser with Ruida controller. I have upgraded my mirrors and lens to the America Photonics. I have upgraded my air assist to run off my 100 gallon compressor, laser is regulated down to 30psi.
I am having issues with cutting 1/8” basswood. My settings are 1 pass, 7mm/s, 85 power, and air turned on. I find that a lot of the cut will cut through all the way, but there will be sections that don’t. I feel like 7mm/s at 85 power is really slow for a 60w machine. I am elevating the wood off the honeycomb 1/4” so I can see if parts cut all the way before touching the wood. I have tried focusing to the top, middle, and bottom of the wood. I have checked my alignment, I can’t find an issue with the alignment. I have also cleaned my mirrors and my lens.
It might be the wood you’re using. Some is better than others for laser cutting. Glue pockets in the plywood cause problems with cutting. I’ve had issues with wood from Amazon and only buy ‘laser rated’ material from quality sellers.
Since your project is likely already unusable, you can check the wood by moving it diagonally about an inch and running the project a second time. If the uncut sections are aligned, it’s your material.
Something is definitely astray. At what point did it begin to fail?
This is my 43W machine cutting 5mm sub flooring at 11mm/s@45% power, using a 2" lens. This is with a stock air pump, ventilation and the lid fully open.
Since I don’t know if you’re a master laser operator/maintainer, this give me cause for concern.
At this point, I’m not sure what we’re (you’re) up against.
If you have these three
properly working tube
clean and aligned optics
proper focus
– they work.
Start with the tube and ensure it’s working correctly by a TEM00 test at m1.
Then mark and post your targets for each mirror to the table.
Marking a target is just that. Burning a hole through it, doesn’t tell us much.
