Airbrush Overspray Studio Guard

Modular Suction System

Hello everyone, during my airbrush painting sessions, I protect my health by using a specific filter mask, but for the overspray that the airbrush produces and deposits on my desk, I needed to find an economical and functional solution. Considering that I don't constantly use the airbrush, purchasing a specific booth was unnecessary.
This system was born exactly for this: to transform a common plastic box into a useful painting station.
This solution of mine is specific to the PC fans I purchased; they are common types with 12cm x 12cm casings, but I strongly recommend checking if the cutout size that accommodates the casing is compatible with yours.
Why this design?
Unlike simple flat adapters, this duct has been designed with gently sloping walls.
* No Turbulence: The aerodynamic shape guides the air towards the center of the fan, avoiding vortices that would reduce the effectiveness of the suction.
* Filter Sandwich Effect: The male-female grid system perfectly locks the filter (common range hood filter), ensuring uniform thickness and constant suction across the entire surface; changing the filter takes a second.
* Magnetic System for the filter (optional): Although there's no need as the filter stays in place without issues, I have created integrated recesses for 4x2mm magnets that allow for stable positioning of the filter.
Technical Specifications
* Compatibility: Designed for standard 120mm PC fans with 12x12 cm casings.
* Additional hardware required: 4 screws with corresponding nuts.
* Hole dimensions: Max screw seat 7.2mm, thru-hole 4.2mm (block depth 7mm).
* Filter: Compatible with filter fabric for kitchen hoods (economical and readily available everywhere).
Printing Tips
The model is designed to be printed in a single piece.
* Supports: Only needed on the bottom. Thanks to the design, once the print bed cools, they detach with extreme ease.
* Aesthetics: The surface in contact with the supports is inside the casing, so it will remain invisible once the fan is mounted.
* Pro-Tip: Print 2 or 3 extra grids (they consume very little filament!) to have spare filters ready for use and not interrupt your painting sessions.
My Setup: I installed two of these modules at the bottom of a plastic clothing storage container. Result? 100% overspray captured and a consistently clean desk!

I hope you find it useful
Thank you