Density Converter
LightBurn asks for a line interval in mm. xTool asks for lines per cm. Other software uses DPI or LPI. Enter any one and get them all.
LightBurn interval
0.1 mm
xTool lines/cm
100 lines/cm
DPI
254 dots/inch
LPI
254 lines/inch
Lines/mm
10 lines/mm
The math
interval (mm) = 25.4 ÷ DPI · lines/cm = DPI ÷ 2.54 · lines/mm = DPI ÷ 25.4 · LPI = DPI
What to start with
Diode lasers usually engrave well at 0.08–0.1 mm (254–318 DPI; xTool's default is 100 lines/cm). CO2 tubes start around 0.085 mm (300 DPI). Fiber galvos run much finer, at 0.03–0.05 mm.