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Mini CNC router 6040 DIY engraving machine frame with ball screw Technical ParametersMachine Dimensions860X690X550mmRack material6061 and 6063 Hard aluminum alloy(The unique and dedicated mold extrusion profiles, Let counterfeiters dwarfs.)Engraving area600X400mmZ-Axis Stroke80mm, Engraving depth depends on the length of the tool edgeAcceptable material thickness≤80mmRail typeChromeplate shaft+Linear Bearings,(Surface hardening 61HRC)Type of screwNEW Ball screw1605,Pitch 5mmDiameter of Spindle motor65mm ( 80mm optional)Stepper motor size (not have motor)57mmRepeat positioning Accuracy0.03mmweight40kg