easy CNC

this is my CNC good for milling wood, plexyglass,pcb and much more
easy desing and low bughet
Hardware:
x7 8mm x 22mm bearings
x2 500x8mm linear rod
x2 600x8mm linear rod
(you can do them as long as you whant)
x3 8mm x1,25 threaded rod
M3 screw and nut

my electronic:
Grbl shield and 4 NEMA 17 stepper motor