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 Mini Carver Z axis Lead Screw Nut $11.00 2016 - Present DWC2440 Replacement Motor and Cable $115.00 E-Stop Switch $27.99 DWC 1824 Replacement Motor and Cable $115.00 DWC 6 Watt Laser Skirt $8.00