DIY filter to contain your nefarious gases. Great for resin printing!
Thread the parts onto M3 or 4-40 threaded rod and use wing nuts to secure. You can also use the Spacer as a stencil to cut a hole in a bin to make a makeshift fume hood!
Two Filter Frame Halves are needed to hold one piece of filter foam. Any foam about 5mm (1/4") that you can cut to a 120mm square will work. Here's one that might work: https://amzn.to/3bD1fQA
My configuration is:
- Grill
- 120mm fan, blowing away from grill
- Spacer
- 2x Filter Frame Half holding foam
- Charc-Holder
- 2x Filter Frame Half holding foam
- Spacer
- 120mm fan, blowing out
- Hose Adapter
After assembling, fill the Charc-Holder with activated carbon pellets or granules, such as https://amzn.to/3dMRXEp
Then, use M2.5 screws to affix the Charcoal Lid to the Charc-Holder.
No parts need support material.
You can build your own configuration! Replace the Hose Adapter with another Grill if desired. Line up multiple Charc-Holders for more filtering fun.