Homemade Mini CNC DIY Y Axis Frame

Hardware:
1 Nema 17 stepper motor 1 pcs wood 240 mm 240 mm x 18 mm 4 pcs NEW SHF12 12mm shaft support linear rail support CNC Router XYZ 4 LM12UU 12mm Linear Ball Bearing Bushing Linear Bearings 2 pcs 12 mm x 340 mm linear shaft 3d printer Cylinder Liner Rail Linear Shaft 4 pcs 2040 Aluminum Extrusion profile european standard 340 mm 1 pcs 5x8mm CNC Motor Jaw Shaft Coupler 5mm To 8mm Flexible Coupling OD 19x25mm 1 pcs 3D Printer T8 screw TrapezoidalLead Screw Dia 8MM Lead 4 mm Length 300mm Copper Nut+