Dual-Filter Soldering Fume Extractor/ 3D-Printing Filter: HEPA + Carbon with 120mm Fans

prusaprinters

Update: Added the configuration as a 3D-Printer filter. It slots into my Filament wall hook.Also messured VOCs with bme680 airquality sensor. The air quality improves slowly when the printer is printing and the fans are running on max speeds.Overview:This is my air filter I use for soldering and 3D-printing ASA and PETG in my enclosure. It uses a Hepa filter for vacuums that you can find easily on amazon. For the second stage I use Carbon Pellets such as found in the Nevermore filter system. As Fans I use 2x 120mm Desktop Pc fans and a cheap PWM controller. You will need:9x M4 thread inserts / minimum 4x: 2x for Hepa filter 2x for M4 rod 5x M4 x 8mm screws for holding the Hepa filter /  minimum: 2x for Hepa filter 4x M4 x 100mm threaded Rods / minimum 2x M4 x 100mm4x M4 Nuts / minimum 2x M4 Nuts3x M3 thread inserts 3x M3 x 8mm screws to secure the baseholder on the Carbon module1x M3 x 30mm for the base1x M3 nut1x Hepa Filter for AEG AEF12, AEF13W, AFS1W1x Carbon Pellets I recommend the Nevermore ones2x 120mm Desktop Fans /minimum 1x 120mm Fan Print instructions:Watch out!!!Print the CarbonBasket with 12% lines infill and no top and no bottom layers. The CarbonLit with at least 6 walls and 12% lines infill and no top and no bottom layers.So that Air can pass but the Carbon Pellets not!!!I printed all files out of PLA except the parts that say TPU out of TPU. I use 3x Walls and 3x Top/Bottom Layers with 10% infill on the standard parts. The TPU parts are optional and not mandatory for the function of the Filter System.You need to print more than 1x :5x HepaHolderClips / minimum 2x3x TPU_Feet_Base_13x TPU_Gasket_Fan Products I used for the Design:Hepa Filter for AEG AEF12, AEF13W, AFS1W:https://www.amazon.de/gp/product/B0C1G9S8Y7/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1120mm Desktop Fans ARCTIC P12 Max:https://www.amazon.de/dp/B09VDNKL4G?psc=1&ref=ppx_yo2ov_dt_b_product_detailsPWM Controller for 12V Fans:https://www.amazon.de/dp/B07HB5TV49?psc=1&ref=ppx_yo2ov_dt_b_product_details