Basic 2D Printer VERY CHEAP

So the idea is to build a very cheap 2 axis printer that can be later upgraded to 3 axis for various purposes.

I got my things from ebay:

8x SK10 10mm CNC Linear Rail Shaft Guide Support LJN New US $11.76

4x 5 x 5mm CNC Motor Jaw Shaft Coupler 5mm To 5mm Flexible Coupling Fashion US $9

metric threaded rod with some bolts

pieces of aluminium sheet

L profile

4x 5V Stepper Motor 28BYJ-48 US $8

20CM Dupont Wire Color Jumper Cable 2.54mm 1P-1P Female to Female N4U8

10 PCS Miniature Rubber Sealed Metal Shielded Metric Radial Ball Bearing Model US $2.42

Arduino UNO