The laser focal height can be adjusted by rotating left and right; 15W laser and fixed focusing column (adjustment speed is faster and more accurate). Can work for a long time.
Easy to operate with the help of software. Import the image, enter the text, you can engrave. Small cylindrical laser engraving machine. Create a laser engraver for the cylinder.Stainless steel, cans, wood, paper tube plastic. Goggles + power cord + USB + laser. WinXP / Win7 / Win8 / Win10.