FoxAlien Rotary Roller Engraving R42 Module is designed for LE-4040, LE-4040 PRO engraving machines to engrave cylindrical objects. The whole rotary module is pre-assembled. It is available to plug-and-use with simple wiring and adjusting after you receive it. Applications: The rotary axis module can be applied to engrave cylindrical objects such as round wood, cup, cans, bottles and glass etc. Product specification: Stepper motor: NEMA17 stepper motor Compatible with: FoxAlien LE-4040, LE-4040PRO Support software: Lasergbrl, Lightburn Product size: 24.5*18*8cm/9.45*7.08*3.15inch Compatible with: LE4040, 3018-SE, Reizer, Masuter Pro, and Masuter 3 !!! NOTICE: If your Masuter Pro/Masuter 3 is upgraded with NEMA23 stepper motors. The R42 rotary roller is NOT compatible. Please click here for the R57 rotary roller. Using Tips: Check the set screws on the synchronouswheels from time to time in case they get loose during engraving. Make sure theset screws are tightened. The belt is adjustable, make sure the screw sare tightened after adjusting the belt, otherwise it may lose steps if the belt is loose. Read the user manual thoroughly before using. Package List: 1x Rotary roller engraving module 1x User Manual