I’ve found the perfect enclosure for my Prusa i3 MK3 3D printer (no modification needed!). It’s a cheap server wall mount cabinet for only 79,- EUR. You can find it on ebay or in different computer online shops. It has 4 mm safety glass and powder coated sheet metal walls. The roof and bottom have cable entries and the roof is also prepared for mounting 2 x single fans. That may come in handy if you want to build a fume exhaust for ABS printing.
This cabinet is available in different sizes and colors. But you need the biggest one (with 15 Height Units and 600mm depth) and the Prusa i3 will fit perfectly. Also the heat bed cable on the backside of the i3 has enough space without touching the enclosure, no modification needed. Since this thing was meant to be mounted on a wall it’s baseplate is not that sturdy. Don’t use rubber feet directly on the bottom side of the enclosure it will be too wobbly! Instead screw a thick plywood board to the bottom side to give the enclosure more stability. On that plywoodboard you can now fix some rubber feet to it if you want to use it on your desk.
I’ve built a little table from a plywood board and some cheap IKEA table legs and screwed the enclosure to it. You can also leave the IKEA legs and put the server cabinet directly on your desk but you really should reinforce the enclosure baseplate with a thick plywood board underneath. Inside the enclosure I fixed some wire channel / cable conduit with strong double sided tape to hide the LED Stripe and to get a pleasant indirect lighting.
19“ 15U Wall Housing Basic, Depth 600 mm, 1-Part, Flat Pack
Article no. WGB-1915WS.60 (white) <<< I have this one
Article no. WGB-1915TS.60 (black) / WGB-1915GR.60 (grey)
Number of height units: 15HE
1x Plywood board 540x600x24mm
4x IKEA ADILS legs
1x RGB LED Stripe 5 Meter
1x Smoke & Heat detector
1x 3M Smoke Detector Magnetic Mount Pad
1x Thermo & Hygrometer with magnetic base (ThermoPro TP53)
4x Wire channel / cable conduit
I’ve already printed some bigger parts and the temperature inside the cabinet is constant 28°C when the Prusa is working. No modification needed – the whole 3D printer including power source is inside the server cabinet. So I don’t need to add a fan but it’s winter here. Will see how it behaves in summer but if it does not exceed 40°C I won’t worry at all.