Maybe someone can help me out.
I have a SM-350 with a 10W laser.
Using Luban my Z height from work piece to bottom of laser tube is 6mm. Burns and cuts good at that height.
Running from Ligtburn, my Z height goes to 26mm. Only burns at higher power settings and not good. Can someone explain the 20mm difference? Have relative Z off for material thickness capability. New to engraving BTH. Appreciate any help.