Fume Filter

thingiverse

This project aims to eliminate ABS fumes from MakerBot and RepRap 3D printers using a filter. The creator had previously experienced headaches due to ABS fume exposure and decided to construct a more effective filtration system than those already available on Thingiverse. After attempting a PC-case fan with a HEPA filter, they settled on a 12V DC bilge pump for its superior power. The chosen HEPA filter is from an Electrolux vacuum cleaner and is washable, making it more cost-effective in the long run. A video demonstrating the filtration system's performance can be viewed here: http://youtu.be/SN6HTDGGLfs?hd=1. The project also involves a fume hood being developed by Built-to-Spec progress, as seen in this blog post: http://www.built-to-spec.com/blog/2011/03/08/progress-update-3810/. To replicate the filtration system, purchase a bilge pump, HEPA filter, carbon prefilter, and 3" dryer vent flexible hose from a local hardware store. A cardboard box and hobby sheet foam will also be needed for construction. Cut a hole in the box to fit the fan snugly, seal with foam, and attach the hose and extension cable. Ensure the box is sealed air-tight to prevent leakage of unfiltered air. The creator suggests not connecting the fan directly to the Extruder Controller due to high power consumption, instead using a 12V power supply from the PSU with yellow for 12V and black for GND connectors. The completed project may require additional soundproofing measures, such as adding a second box filled with crunched paper or packing material around the main box.