I wanted a bento box air filter for my printer but couldn't find a suitable place for the original bento box. I also wanted to share parts with my friend who owns a Bambulab. So, I launched Fusion and created a design that could fit into the space between the print bed and back wall. This required a design less than 48mm thick.

The design only uses up 45mm by 116mm of space, while retaining the fun of having a bento box. It fits two 4020/4028 fans with ease. When printing, please download the CMAG .STL file from the original source.

A STEP file is included if you want to modify my design or add support for your printer.

**The Qidi Q1 mounting uses the original screws on the printer: two screws accessible after removing the rear cover and another one located near the linear rod. A washer is needed if your printer has a different height. I removed the exhaust fan, sliced the fan into the JST XH (2.54mm pitch) connector, and plugged it into FAN-0.** Test clearance by manual moving bed before running any print.

Print with PETG, ABS, or any plastic that can withstand a heated chamber. You don't want it to melt, do you?