I only had a retangular switch, so i remixed the housing to fit it. I took the opportunity to make adjustaments in the battery charger socket, and remove the part for screw the fan.

Changes:

• Retangular switch hole (14x8.7mm)
• Better fitting of the battery charger module
• New model just to test the battery charger fitting
• 2 Housing modules, one for putting the fan behind the filter (as usual), and another to put the fan in front of it (it doesn't have the parts for screw the fan). I made this change because i thought the air flux with the filter in front of the fan is much lower than behind it. However, i've uploaded the two versions with the retangular switch hole

All parts printed in PLA, 0.2mm layer height, 16% infill, and with -0,08mm Horizontal Expansion (Cura).