Air inlet port + grate + vent cover enclosure for Phrozen Sonic Mighty 4k

thingiverse

I really love my Phrozen Sonic Mighty 4k, but the hood that covers the printer/vat area was a big nuisance. Every time a print was ready you needed to remove it and put it somewhere where it didn't stand in the way. Another thing that bothered me was the fact that you can't attach a ventilation system to the hood to get rid of the fumes and smells from the printing process and the resin. After some designing I have now built an enclosure for my Mighty and I had to fix a few things that are important concerning cooling. I needed an extended inlet port for the cooling fan at the back of the printer. Since I have an air extraction system attached to the top of the enclosure to take the fumes and smells from the printing process out of the enclosure, I also needed to have some inlet ports to let fresh air in. The door has closed cell foam tape on the edges for an airtight seal and when the outlet fan is on, the door is sucked closed by the negative pressure. To prevent warm air being re-used to cool the internal electronics of the printer I made a connection from the printer directly to the outside of the enclosure. The small fan inlet pipe screws onto the back of the printer over the intake fan hole and uses the same mounting holes and screws. You do however need to remove the grill protecting the fan. I recommend leaving one screw in, otherwise the fan will no longer be attached to the back of the printer and you might experience some difficulty to get it properly aligned with the hole again. The original grill was turned to the side so the inlet pipe could be attached. I used the original screws and started with just 1 to keep the fan attached. When the 1st screw is attached to the fan, you can remove the last screw from the grill and remove it. Now you can screw in the last 3 screws to fix the fan tight again. For some extra filtering of the air being taken into the printer I used a double layer of micro mesh stocking, which I fastened to the inlet pipe with a tie-rip. The outside grill has an outside diameter of 70mm and an inside diameter of 66mm. The outside diameter of the inlet pipe is 62mm. On the inside of the grill flange I taped 2mm thick closed cell foam to make an air tight seal between the outside grill and the inlet pipe, which provides some room when you are placing or removing the printer from the enclosure. In de back of the enclosure I drilled a few extra holes for air to enter the enclosure to make the negative air pressure inside not too great. These holes are also covered by a rectangular grill on the outside, once again covered with the micro mesh, to prevent dust from entering the enclosure and contaminating the resin in the vat. For the large vent outlet on top of the enclosure I made an outlet port which will fit an 80mm hose or pipe. I also added a double layer of micro mesh stocking over this, as this is connected to the outside air through an air grate in my window. When I forget to close the air grate in the window, air can blow into the enclosure and possibly introduce some dust and or small debris, which is now caught by the micro mesh. To make inserting the USB drive on the side of the printer a bit easier, I bought a small 15cm USB extension cable which I then mounted in a small holder for the cable and attached it with 2 screw from the outside to the inside wall of the enclosure.