A simple 120mm fume extractor (pre-split)
thingiverse
I had a 120mm computer fan lying around and decided to build a fume extractor. It turned out my printer didn't like printing the whole thing, so I split it up into two halves to be glued together afterwards. The opening seen in the photo turned out to be quite small, so I updated the files to have a bigger one. The supports can be cut out to provide more airflow. I used wood screws to mount the fan into place. You can add a fan cover to avoid blocking the fan accidentally, http://www.thingiverse.com/thing:298648 has been working great for me. Print Settings Printer Brand: MakerBot Printer: MakerBot Replicator 2X Rafts: Yes Supports: No Resolution: 0.2 Infill: 10% Notes: I used ABS, but PLA/Nylon should work just fine too.
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