Prusa mk3 Einsy case with fan

thingiverse

This modification builds upon the stock Prusa i3 Mk3 Einsy base and door design to accommodate a 40x40x10mm Noctua fan. To get started, you'll need two 3mm bolts measuring around 15mm in length, along with nuts. Mount the fan so that it blows out as an exhaust unit. Note that this modification uses the stock hinge, but if you're upgrading, you will need to print a new one. PETG or ABS filaments are recommended for this project. I personally used Atomic Filament Carbon Fiber PETG and had no issues with printing. I've put this modification to the test by printing it out myself, and it works seamlessly. The fan fits perfectly in place, allowing the door to clear without any obstructions. Moreover, 5v power is readily available and functions as expected. In terms of powering your Noctua NF-A4x10 5v fan, simply connect it to two unused pins on the P3 connector - specifically pins 1 and 7, located just above the filament sensor. A picture illustrating the necessary pin configuration is included for reference. Alternatively, you may also consider sourcing a 24v 40mm fan if that's more suitable for your needs.