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)
The author remixed this model.