Replacement Parts › DWC Z Axis Flex Coupler Image 1 of 2 Image 2 of 2 DWC Z Axis Flex Coupler $22.00 DWC CNC Motor to Z Axis Lead screw Flexible Coupling. stepper motor to lead screw couplingType: Shaft Flexible parallel couplingMaterial: Aluminium Purchase Added! DWC CNC Motor to Z Axis Lead screw Flexible Coupling. stepper motor to lead screw couplingType: Shaft Flexible parallel couplingMaterial: Aluminium Related Products 4 Channel Relay Module $22.00 2016 - Present DWC2440 Replacement Motor and Cable $115.00 DWC1824 & DWC2440 Axis Linear Bearing from $27.00 Hitachi/Metabo M12VC Router Brushes $7.00 DWC 6 Watt Laser Skirt $8.00