2020 extrusion printer - driver fan(5~7cm)

It attach to 2020 extrusion, can keep your RAMPS board stable, so stepper motor driver would not be too hot. Decrease situation of stepper motor loses steps.
Kind of screw use : M3-10mm(8), M3-25mm(3), M4-10mm(2)(attach on 2020 extrusion).

Power of fan can connect on:
1.Connect End stop port (5V-GND-Singal (yellow wire, not use) )
2.Or connect to power(12V)

Step 1 : Attach RAMPS and Arduino to board shelf.
Step 2 : Connect fan shelf to board shelf.(but a M3-10mm should not be used on f