... distortion.2. Stepper motor, high performance driver and strong ballscrew for transmission, it is very stable, effective, and high precision ... and run the machine. It's the best choice for small shop and handcraft maker.4. Power-off memory, ... variable CAD/CAM software. The machine can process food model, jade engraving, acrylic handcrafts.Applicable Materialsaluminum, iron, plastic, wood, plexiglass, ...