Description WE ARE NZ COMPANY. THIS ITEM IS STOCKED IN AUCKLAND. Product: To provide you with a better engraving experience, this roller is made of T slot 2020 aluminum extrusion, sturdy 4.5mm thick plexiglass (blue transparent), and a Nema 17 stepper motor with good torque and low self-interference. Meanwhile, it is adjustable to 5 roller positions at 15 mm intervals, from 20 mm diameter up to 200 mm length. Roller spacing is adjustable from 20 to 90 mm. compatible with cylindrical objects with a minimum diameter of 20 mm and a maximum diameter of 200 mm. What’s more, this is ideal for all-angle engraving on glasses, coated drinking cups, cans, wood, and other cylindrical objects. Connecting the Y-axis motor cable of the laser engraver to the motor of the rotary roller will be accessible. Rotary rollers are compatible with Lightburn and LaserGRBL. Features: No installation required, Easy and fast sliding adjustment Adjustable Width ( 5 levels:Range 20mm-80mm diameter is accessible) Perfect combination of aluminum alloy gasket with screws Embellished with VI bottom cover with VI bottom cover Extensive compatibility with software and other brands of engraving machines Specification: Name Nema 17 stepper motor Model 17HS4401 Step Angle 1,8° ± 0.09° Rated voltage DC 3.6V Rated Current DC 1.5A / Phase Holding Torque =420mN.M Maximum no load Starling frequency =1900 PPS Weight 255 g