Printing with an enclosure reduces drafts and increases build area temperatures, improving the print quality. An enclosure will also keep dust, insects, and pets away from your printer.
Features

This upgrade adds a fan bracket, which aids in cooling the PSU, and optionally adds a bracket for a seperate accessory PSU.
Download stl without accessory PSU bracket
This upgrade helps prolong the life of your main board by adding an 80mm cooling fan and a mosfet for the heated bed.
Download stl for main board cover