... brush pen, brush pot etc. Parameters ModelBig Rotary DeviceSmall Rotary DeviceMin diameter10mm10mmInside diameter10~90mm10~70mmOutside diameter200mm130mmMax length of ... Big rotary device is used for model YH-G8050, YH-G9060, YH-G1290, YH-G1490, YH-G1612, YH-G1616.4. Small rotary device is used for YH-G5030Applicable ... English software.Samples Laser Machine Auxiliary Rotary Device for cylinder objects