Exhaust fan for SL1S resin printer

We like our SL1S resin printer, however the fumes from the resin are less great. Here is a magnetic box that snaps onto the back of the printer, and allows the resin fumes to be blown into a duct and out of a window (or into a larger air filtration system).

This is a redesign of an initial prototype built by @Honghong_151703 

Components

• 1pc fan base (print)
• 1pc lid (print)
• 1pc control cutout (print, adapt it to your switch / barrel jack)
• 92mm fan (for example, CFM-9225C-125-317-22)
• 4pc M5x6mm flat head bolt (to screw into fan)
• 16pc M3*4*5 threaded inserts (for the magnets, lid, and control cutout)
• 16pc M3*6 flat head bolt (for the magnets, lid, and control cutout)
• 4pc 12mmx2.75mm round magnets
• 1pc panel mount rocker switch
• 1pc panel mount barrel jack
• 1pc 12V power supply
• small bits of heat shrink
• 11cm diameter flexible aluminum exhaust hose
• thin rubber gasket (optional, goes around input vent)

Tools needed

• 3d printer
• soldering iron
• threaded insert inserter (optional, can use soldering iron)
• heat gun
• screwdriver

Build notes

I used a scrap rocker switch and barrel jack, so I don't have part numbers for them. The control cutout was made as a separate piece; if you use a differently shaped switch (or no switch at all), then you should only need to re-design the control cutout portion.

I used threaded inserts for all of the M3 screws that go into the plastic; if you don't have them, then you can probably make the hole sizes smaller, and screw the M3 bolts directly into the plastic.

Finally, the original prototype was stuffed with active carbon filter material. If you want to do that with this design, you'll need to design a shroud to isolate it from the fan.