6.35 x 12.7mm 1/4" x 1/2" Flexible Shaft Coupling Rigid CNC Coupler D25mm L30mm

Climax Part RC-025-A Aluminum Rigid Coupling, 1/4 inch bore, 1/2 inch OD, 3/4 inch Length, 10-32 x 1/8 Set Screw

STEPPERONLINE CNC Stepper Motor Driver 1.0-4.2A 20-50VDC 1/128 Micro-step Resolutions for Nema 17 and 23 Stepper Motor

ARDUINO UNO R3 [A000066]

STEPPERONLINE Nema 23 Stepper Motor 3.0A 269oz.in/1.9Nm 76mm Length Step motor for CNC Mill Lathe Router

Houkr GT2 Aluminum Timing Belt Idler Pulley Bearing 20&60 Teeth Width 6.35mm Born Synchronous Wheel, with a Length 200mm Width 6mm Belt and a M4 Allen Wrench, for 3D Printer.

Climax Part RC-050 Mild Steel, Black Oxide Plating Rigid Coupling, 1/2 inch bore, 1 inch OD, 1 1/2 inch Length, 1/4-20 x 1/4 Set Screw

STEPPERONLINE Nema 23 CNC Stepper Motor 2.8A 178.5oz.in/1.26Nm CNC Stepping Motor DIY CNC Mill

MAIYUM 63-37 Tin Lead Rosin Core Solder Wire for Electrical Soldering (0.8mm 50g)