W1209 Temperature Control Plus Step Down Module Housing

Summary
Built this box to house my temperature switch and voltage regulator. I use this in conjunction with my 3D Printer to turn on the enclosure fan when in use the shut it off automatically. If printing ABS I shut the unit off to hold as much heat as possible.

Parts Needed:

DC power supply. (you will need 12v to power the W1209 12V DC Digital Temperature Controller)
PC fan
W1209 12V DC Digital Temperature Controller (https://www.amazon.com/gp/product/B0727PB59H/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1)
M2.5x6 screws
M2.5x8 screws


Possible Parts:

Voltage Step Down (https://www.amazon.com/gp/product/B01GJ0SC2C/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1)
Voltmeter (https://www.amazon.com/gp/product/B00YALV0NG/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1)

Notes:
I opted to use the voltage step down and voltmeter to because I'm using the 19v PS with a 12v fan. I can overvolt the fan but don't want 19 volts to risk burning it up. Adjust the voltage step d