Inline Vacuum Air Filter Enclosure

I wanted to add another level of air filtration for a dust extractor for my small CNC mill, so after the first stage cyclone filter (from thingiverse) and before the wet/dry vacuum, this provides an enclosure to hold a secondary air filter to trap as much fiberglass dust as possible.

The design is fully customizable, but with the uploaded settings, it fits the [86889 EF-1 Filter for Kenmore 53295 40324 20-86889 KC38KCEN1000 8175062 610445 Replacement Panasonic Part MC-V199H MC-UG725](https://www.amazon.com/gp/product/B071HGS476) or similar part.

Adjust the filter dimensions, if you want to use a different filter, and the input and output ports are customizable (both inside and outside diameters). Be sure to make multiple measurements across the filter (length/width/height) and use the largest measured dimensions, adding a little padding, if desired, to allow for filter manufacturing tolerances.

The current version doesn't compensate the funnel wall thickness based on the slop