Fan Power Box with Pot Control

Using for control of the added fans for the Da Vinci AiO machine. I made this box with enough room to add a Arduino Uno to the bottom for a later upgrade. I would like to put in a temp sensor and display along with a distance monitor for the bed. This would allow for auto turn on/off of the fans when not around. That will have to be at a later date, but is a future plan.

v2 just moves the pot up so the prongs won't need to be cut off to not hit the power switch.

My extruder is having issu