... , engineering plastic, bakelite, etc. Nonmetal materials on the solid wood engraving and milling, also suitable for carving PCB, and wood ... of engraving machine use:1, carving PCB (buy the machine will send tutorial)Many users will this machine is used for carving PCB ... road (with what tools, cutter size, carving depth, speed, etc.) - preservation G code - to MACH3 control scrimshaw work.3, ...