ATOMSTACK R3 - Object Under Roller Check; Adjustable Gear Settings

4.21 Make sure no object under the roller
5. There is 8 Steps for our R3 Rotary Roller, it can adjust to match different size object for engraving via different
gear.
4.22 Steps setting of roller
4.23 Steps for adjustable
4.24 plum blossom handle
6.Precautions