====== DIY Soldering Fume Extractor ====== A single unit should cost about 80€, parts will include: * housing * fan(s) 12V or 24V, some candidates: AFB1224HHE-T500, MS1238E12B-FHR-2EM, AFB1224SHE-T50F, = order the fan from DigiKey! * active carbon filter * prefilter(s) * hepa filter * motor speed controller * 12V or 24V power supply, external, sealed ====== Tested Parts(in bold the selected final components!): ====== This parts are here to document the design process, the final BOM and results are below. ^ Item ^ Picture | **Description** | **Qty** | **Unit Price** | **Total Price** | **Link** | Comment | | **SC120-W5** | {{https://media.digikey.com/photos/Gardtec-Incorporated/MFG_SC120-W5.jpg?100}} | Metallic fan protection for 120mm fans | 6 | 0.6€ | 3.6€ | [[https://www.digikey.de/product-detail/en/SC120-W5/1997-1059-ND/9654003?itemSeq=374871252|link]] | | | AFB1224HHE-T500 | {{https://media.digikey.com/Photos/Delta%20Photos/AFB1224HHE-T500.JPG?100}} | 120x120x38mm fan 0.354 in H2O (88.2 Pa) | 1 | 24.34€ | 24.34€ | [[https://www.digikey.de/product-detail/en/AFB1224HHE-T500/603-1470-ND/2560594?itemSeq=374871602|link]] | | | **MS1238E12B-FHR-2EM** | {{https://media.digikey.com/Photos/Mechatronics%20Fan%20Group/MS1238E12B-FHR-2EM.JPG?100}} | 120x120x38mm fan 1.200 in H2O (298.9 Pa) | 1 | 26.70€ | 26.70€ | [[https://www.digikey.de/product-detail/en/MS1238E12B-FHR-2EM/1570-1914-ND/9962917?itemSeq=374871614|link]] | | | AFB1224SHE-T50F | {{https://media.digikey.com/Photos/Delta%20Photos/AFB1224SHE-T50F.JPG?100}} | 120x120x38mm fan 0.571 in H2O (142.2 Pa) | 1 | 24.93€ | 24.93€ | [[https://www.digikey.de/product-detail/en/AFB1224SHE-T50F/603-1471-ND/2560595?itemSeq=374873298|link]] | | | **Motor Speed Controller** | {{https://i.ebayimg.com/images/g/tj4AAOSwbIRfO5~I/s-l1600.jpg?100}} | 5A 28V motor speed controller | 1 | 8€ | 8€ | [[https://www.ebay.de/itm/253606210621?hash=item3b0c1bac3d:g:aSsAAOSwZTlfO5~E|link]] | | | **F8 / F9 Feinfilter matte** | {{https://i.ebayimg.com/images/g/DpwAAOSw56NdgVR5/s-l1600.png?100}} | Filtermatte F8 or F9 | 1 | 16.8€ | 16.8€ | [[https://www.ebay.de/itm/264683795358|link]] | | | **Active carbon 1kg** | {{https://i.ebayimg.com/thumbs/images/g/gBMAAOSw0gdXTWGQ/s-l96.jpg?100}} | Active carbon for bad smell | 1 | 9€ | 9€ | [[https://www.ebay.de/itm/182153993270|link]] | | | **Pre filter G4 matte** | {{https://i.ebayimg.com/thumbs/images/g/4dkAAOSwvLJfS4Wh/s-l96.jpg?100}} | Filtermatte G4 for prefilter | 1 | 10.85€ | 10.85€ | [[https://www.ebay.de/itm/182273109757|link]] | | | **Hepa TE70TE15021 Hoover** | {{https://i.ebayimg.com/thumbs/images/g/Ot4AAOSwWhRhI~9V/s-l96.jpg?100}} | Hepa Filter | 1 | 5.5€ | 5.5€ | [[https://www.ebay.de/itm/193691979224|link]] | 18x98x108mm, 190cm3, sealing on the bottom, seems easy to attach | | Hepa Bosch BSA | {{https://i.ebayimg.com/thumbs/images/g/5xsAAOSwj0NhI~O3/s-l96.jpg?100}} | Hepa Filter | 1 | 6.4€ | 6.4€ | [[https://www.ebay.de/itm/143765557061|link]] | 11.8x132.5x96mm, 150cm3 sealing on top, side plastics makes it difficult to attach | | Hepa Zelmer ZVC | {{https://i.ebayimg.com/thumbs/images/g/KwIAAOSwSV5hJHp5/s-l96.jpg?100}} | Hepa Filter | 1 | 6.7€ | 6.7€ | [[https://www.ebay.de/itm/143766219873|link]] | 21x108x98mm, 220cm3, sealing on the bottom, seems easy to attach | | Hepa Ariete 2741 | {{https://i.ebayimg.com/thumbs/images/g/nRkAAOSwzcRhJDFV/s-l96.jpg?100}} | Hepa Filter | 1 | 5.4€ | 5.4€ | [[https://www.ebay.de/itm/143765896203|link]] | 19x104x96mm, 190cm3, sealing on top, seems easy to attach | | Hepa Electrolux T8 | {{https://i.ebayimg.com/thumbs/images/g/MjUAAOSwqyRhI9Zm/s-l96.jpg?100}} | Hepa Filter | 1 | 5.4€ | 5.4€ | [[https://www.ebay.de/itm/193691901276|link]] | 21x88x103, 190cm3 sealing on top, side plastic makes it difficult to attach | | Hepa Siemens VS | {{https://i.ebayimg.com/thumbs/images/g/QzYAAOSwRSVdlHoa/s-l96.jpg?100}} | Hepa Filter | 1 | 9.9€ | 9.9€ | [[https://www.ebay.de/itm/274035288782|link]] | 32x95x82mm, 250cm3 sealing on top, side plastic makes it difficult to attach | | | | | | | 160.52€ | | | ====== Design considerations ====== * Fans in series increase the pressure but keep the same airflow, fans in parallel double the airflow but keep the same pressure * 120x120x38mm fans seems the best format * some fans are highly dangerous for the fingers, maybe better to protect the front/back with a plate! * fans could be only with 2 wires and voltage controlled; the 5A motor controller seems ideal and cheap: [[https://www.amazon.de/-/en/Gebildet-Controller-Adjustable-Reversible-Regulator/dp/B07X5JZX4M/ref=sr_1_13?crid=39BGVBV3X1336&dchild=1&keywords=motor+speed+controller&qid=1629811356&s=diy&sprefix=motor+speed+c%2Caps%2C161&sr=1-13]] * fabulaser filter is: G4, F9, H13, Active Carbon * Weller soldering filter is: F5 + E12 * firtermatte could be precut or cut by hand * the hepa filter maybe taken from a vacuum cleaner filter [[https://www.ebay.de/itm/373462598006]] * do we need a middle size filter (middle size of the dust)? in case we can cut it from some "taschenfilter" * Similar push structure as Fabulaser Filter + rubber/foam tape? * noise isolation material for the fan? * if everything is powered by less than 48V then it should be categorised as low voltage device (for CE certification) ====== Final Design ====== Downloads: **Fusion File:[[ https://a360.co/3nI6aXQ]]** \\ **Step File: {{ :projects:diy_soldering_filter.zip |}}**\\ **Drawing PDF:{{ :projects:diy_soldering_filter_final_drawing.pdf |}}**\\ {{:projects:rendering_1.jpg?800|}} {{:projects:drawing.jpg?800|}} {{{{:projects:fab_filter.jpeg?600|}}}} ====== Assembly procedure ====== - Position the inner supports and the 6 x M4 nuts - Glue the lock surface on top of the nuts - Screw the fan to the Fan Support, by making sure to have both protection grids installed, use the M4 60mm screws - Assembly the main body - Add a thin layer of G4 on the back of the fan - Add the active carbon - Add the F8/ filter - Add the F8/9 filter - Screw the Air Inlet using the M4 30mm screws - Attach the Motor Controller to the top side of the control box, using 8 x M3 8mm screws and 4 x 10mm M3 StandOffs - Pass the cables through the cable gland - Screw the cable gland to the back of the control box - Assembly the control box {{:projects:assembly_gif.gif?800|}} ====== Final BOM ====== Total cost is about **60€** ^ Item ^ Picture | **Description** | Qty | **Unit Price** | **Total Price** | **Link** | **Comment** | | **MS1238E12B-FHR-2EM** | {{https://media.digikey.com/Photos/Mechatronics%20Fan%20Group/MS1238E12B-FHR-2EM.JPG?100}} | 120x120x38mm fan 1.200 in H2O (298.9 Pa) | 1 | 26.70€ | 26.70€ | [[https://www.digikey.de/product-detail/en/MS1238E12B-FHR-2EM/1570-1914-ND/9962917?itemSeq=374871614|link]] | | | **SC120-W5** | {{https://media.digikey.com/photos/Gardtec-Incorporated/MFG_SC120-W5.jpg?100}} | Metallic fan protection for 120mm fans | 2 | 0.6€ | 1.2€ | [[https://www.digikey.de/product-detail/en/SC120-W5/1997-1059-ND/9654003?itemSeq=374871252|link]] | | | **F8 / F9 Feinfilter matte** | {{https://i.ebayimg.com/images/g/DpwAAOSw56NdgVR5/s-l1600.png?100}} | Filtermatte F8 or F9 | 1 | 0.5€ | 0.5€ | [[https://www.ebay.de/itm/264683795358|link]] | Here a 120x120mm piece is needed, price is calculated accordingly. | | **Pre filter G4 matte** | {{https://i.ebayimg.com/thumbs/images/g/4dkAAOSwvLJfS4Wh/s-l96.jpg?100}} | Filtermatte G4 for prefilter | 1 | 0.5€ | 0.5€ | [[https://www.ebay.de/itm/182273109757|link]] | Here a 120x120mm piece is needed, price is calculated accordingly. | | **Active carbon 1kg** | {{https://i.ebayimg.com/thumbs/images/g/gBMAAOSw0gdXTWGQ/s-l96.jpg?100}} | Active carbon for bad smell | 1 | 9€ | 0.9€ | [[https://www.ebay.de/itm/182153993270|link]] | Here less than 100g are needed, price is calculated accordingly. | | **Hepa TE70TE15021 Hoover** | {{https://i.ebayimg.com/thumbs/images/g/Ot4AAOSwWhRhI~9V/s-l96.jpg?100}} | Hepa Filter | 1 | 5.5€ | 5.5€ | [[https://www.ebay.de/itm/193691979224|link]] | This is usually used in vaacum cleaner. | | **6mm Wood Sheet** | {{https://www.atlantictimber.co.uk/user/products/large/Sheet%20Material/efficiency_poplar_plywood.jpg?100}} | 6mm Poplar Wood | 600x400mm (approx) | 5.8€ | 5.8€ | [[https://www.ebay.de/itm/163723841384|link]] | Also another kind of light wood would do it. MDF is not recommended. | | **4mm Wood Sheet or MDF** | {{https://32.cdn.ekm.net/ekmps/shops/trustleaf/images/4mm-mdf-sheets-6816-p.jpg?100}} | 4mm Poplar Wood or MDF | 250x250mm (approx) | 3€ | | | | | **PLA Filament** | {{https://www.filamentworld.de/wp-content/uploads/2020/02/3D-Drucker-Filament-PLA-Matt-175mm-Schwarz-3.jpg?100}} | Normal PLA filament | 100g (approx) | 2.5€ | 2.5€ | [[https://www.filamentworld.de/shop/pla-filament-3d-drucker/schwarz/|link]] | | | **Cable Gland** | {{https://cdn.shopify.com/s/files/1/1000/8196/products/quick_connect_pic_800x.PNG?100}} | PG7 | 1 | | | | | | **Superglue** | {{https://i1.wp.com/bioplasticsnews.com/wp-content/uploads/2020/02/biobased-super-glue-e1582663717343.jpg?100}} | | 1 | | | | | | **Power Supply** | {{https://m.media-amazon.com/images/I/71pfVDpIHsL._AC_SL1500_.jpg?100}} | 12V 5A or more | 1 | 15€ | 15€ | [[https://www.amazon.de/Stromversorgung-Lichtstreifen-Fernseher-Verst%C3%A4rker-Kamerasystem/dp/B07L5GP7SD/ref=asc_df_B07L5GP7SD|link]] | Needs to be a power supply of the type that does not need an enclosure. | | Fasteners | {{https://automatedfastening.com/wp-content/uploads/2018/03/Automated-Fasteners-constru.jpg?100}} | DIN 912: M4-30mm x 4, M4-60mm x 4, DIN 934 M4 x 8, Standoff (Plastic) M3-10mm x 4 | | | | | |