About this 3D model
here are some addons for the DC775 Turbine from https://www.printables.com/de/@PINGUIN 1st i added a screen for the backsite you can attach a charcoal filter with that and use the turbine as a fume extractor or you can spin the turbine reverse an use that screen as a dust filter Part A For the Screen there are two options: 1. empty screen, to clamp a filter or something 2. a closed one, with that you can print the filter. To do this use the height modifier and make 1mm only infill like 25% honeycomb, that setting was used on the picture Part B i made a Base that can be attached to the Fan Housing one hole at the Backsite for a DC Plug and a mount for PWM like this one https://amzn.eu/d/6Mu9k9z on the botton side are 2 holes for heat-inserts (not shown on the pictures)