DIY Aluminum 6040 CNC Router Milling Engraver Machine frame Kit With dust cover

(5) Transmission unit: X-axis= 20mm linear shaft; Y-axis=16mm linear shaft; Z-aixs=16mm linear shaft.The X/Y/Z axis are all new SFU1605 ball screws,and good quanlity coupler. 9) Flexible coupling can be used for high torque transmission.

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