i have a noname 5.5mw laser engraver it is running GRBL 1.1f and when i got it i was testing power and speed setting and was getting beautiful results with painted tile im not etching the tile i am removing a top layer of paint to reveal the under color. originally i was using the default firmware setting and what ever the default lightburn settings were and results were great but a tile would take 3 hours the top layer of paint on a 4in x 4in tile so i started looking to how to speed up my laser as no matter how high i set the speed it was always slow i followed some tips on these forums and was able to get great speed by setting $32=1 but now i either get overburn where it burns all the paint off the tile on the edges or after about 1/2 way threw the burn the power goes way down i have used other software with the updated FW settings and dont have the overburn issue or the power fade issue but the end quality has a bunch of lines in the image.
i am not burning with the fill or line settings i am using an image.
befor i started messing with the firmware the $32 was set to 0 but now the laser dont act right with that setting.
what i am trying to have is the laser to run at the exact power i set no fade out if i do a bunch of test squares i found that since i did all the suggestions on these forums my laser power is weaker with the new setting but faster what i want is M3 laser power but with the M4 speed how can i achieve this.
sorry for the ramble but i have spent almost 2 weeks now trying to get this figured out and have seen alot of posts about the same issue but no real answer.