Two-fan enclosure for Flashforge AD5m

I printed the enclosure for the Flashforge AD5M printer, and when it was closed, I found that the internal temperature rose significantly and caused heat creep. So I designed a cooling system for temperature control, so that the chamber would not get too hot. I bought a thermostat controller with a relay output to calibrate the fan on and off temperatures, but I needed a way to put the fans in place, so I designed this housing that perfectly accommodates two 5cm fans. With these fans, I inject cool air from below to control the temperature. Since I inject it from below, it doesn't cause warping; the airflow it generates is very low, but it's enough to reduce the chamber temperature to the standard required for problem-free PLA printing.

This assembly is mounted on the 3mm side acrylic; a 62mm x 104mm cut needs to be made, and the housing slides into the acrylic and is fixed. At the bottom, it has a compartment for the fans' electrical connections, and a cable grommet to route the cables to the back of the printer. I combined it with a lid riser I found on this site, which has side vents that help hot air escape. 

The result has been very satisfactory; when printing PETG with a bed at 80°C and a nozzle at 255°C, the temperature remains at 35-37°C. 

I imagine I'm not the only one who has encountered this problem. I'm sharing my solution in case it's useful to someone else.