3D Printer Air Filter / Heated Chamber (Lulzbot TAZ 5)

thingiverse

UPDATE: After using it for a while, my wife stopped complaining about the fumes. It works as both a heated build chamber with a mandatory cover and removes all odors from ABS printing. I added a circular pipe to feed cool air to the Rambo board. I had some weird failed prints due to the board overheating. The black cover hides the printer nicely while in use or not. DESCRIPTION An air filter housing that fits on top of the Lulzbot Taz 5 and possibly the 6. It accommodates two 120mm fans, one 25mm thick and the other 38 mm thick. You need powerful fans to push through HEPA filters. I used Scythe Ultra Kaze 3000rpm for the bigger one. Choose high static pressure over airflow. It fits two Electrolux H12 or H13 vacuum filters; I modified it to house two filters for more air flow. The other side fits 5-6 10x100x100mm activated carbon filters from eBay. The grille on the left holds one carbon filter, preventing the fan from moving too much air in the wrong direction. Rest of the carbon filters are above the fan. You also need to cover your printer with a hood as it's meant to "scrub" the air inside repeatedly. It also gets somewhat heated buildchamber. Mine reaches 55 degrees while printing ABS on a heated bed at 95 degrees. The noise level is okay with the cover on and masks annoying printer noises nicely. The H13 filter is very thick, passing little air. The original Electrolux H12 filter passes more. Chinese filters pass even more. Currently, I have the original H12 and one Chinese one installed. The filter really works, removing nasty odors! Print two of the "UpperHepaDuct" parts; the other goes to the left side, above the thicker fan, missing from the picture. Parts Needed: - 120 mm 25mm fan, high static pressure - 120mm 38mm fan, high static pressure http://www.scythe-eu.com/en/products/fans/ultra-kaze-120.html - 8 M4 approx 4mm long Brass inserts - 8 M4 45mm button head screws - 5-6 100x100x10mm activated carbon filters http://www.ebay.com/itm/322237669755 - 2 Electrolux H12 or H13 filters https://www.amazon.com/Electrolux-EL012B-Electro-Hepa-Filter/dp/B000MISO8A, or Chinese ones - A hood/cover over the printer; I used a thin survival cover cut to shape plus a normal cover to keep heat in Note that the printhead might not go all the way up with the air filter on it but you can always print an adapter to mount it higher if you wish. I have mine sucking in from the carbon side and blowing out from the HEPA side, just like my Phillips air cleaner. I guess it's this way to avoid possible carbon dust. Todo/Ideas: - Power/control from RAMBO - Led lights - 24V PTC Heater to heat the build chamber, controlled from RAMBO - Gas and particle sensors