I have Chinese Eleksmaker A3 Pro laser engraver with 2.5W laser. When I try to burn my pcb from JPG or PNG file, Laserweb makes it very “fuzzy”, meaning lines are not correct.
Check attached image. I couldn’t put second image because I’m new user.
By checking Laserweb preview, image looks good but not when it is burned. I have made spring tighteners to keep all the belts tight enough, every bolt and screw is tightened, nothing loose anywhere.
I also have newest grbl 1.1h installed on Arduino Nano on my engraver.
What could cause this problem ? Is it bug perhaps ?
Or is there fix to this already ?
Thank you all in advance for help