... as a simple 3d numerical control to use primary worktable, such as test laser engraving, numerical control dispensing, nc positioning, ... 57 stepping motor7. Transmission unit: ShuangXuan word 1204 high-speed precision acme screw8. Spindle motor:; 2million dc motor ... tools, cutter size, carving depth, speed, etc.) - preservation G code - to MACH3 control scrimshaw work.3, three-dimensional sculpture ...