Engraver

This is a machine for creating printed circuit boards. It works by shooting an UV laser to a photosensitive film applied to the copper clad board.
Parts needed (links just for reference):
2x nema 17 steppers
4x 8mm diameter rods
8x 8mm bushing (https://www.aliexpress.com/item/10pcs-SF-1-0810-Self-Lubricating-Composite-Bearing-Bushing-Sleeve-8-10-10mm/1393921440.html)
1x PC case(or wooden box)
2x M5 threaded rods
8x M5 nuts
2x stepper motor coupler (http://www.ebay.com/itm/5x5mm-CNC-Motor