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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 media.digikey.com_photos_gardtec-incorporated_mfg_sc120-w5.jpg Metallic fan protection for 120mm fans 6 0.6€ 3.6€ link
AFB1224HHE-T500 media.digikey.com_photos_delta_20photos_afb1224hhe-t500.jpg 120x120x38mm fan 0.354 in H2O (88.2 Pa) 1 24.34€ 24.34€ link
MS1238E12B-FHR-2EM media.digikey.com_photos_mechatronics_20fan_20group_ms1238e12b-fhr-2em.jpg 120x120x38mm fan 1.200 in H2O (298.9 Pa) 1 26.70€ 26.70€ link
AFB1224SHE-T50F media.digikey.com_photos_delta_20photos_afb1224she-t50f.jpg 120x120x38mm fan 0.571 in H2O (142.2 Pa) 1 24.93€ 24.93€ link
Motor Speed Controller i.ebayimg.com_images_g_tj4aaoswbirfo5_i_s-l1600.jpg 5A 28V motor speed controller 1 8€ 8€ link
F8 / F9 Feinfilter matte Filtermatte F8 or F9 1 16.8€ 16.8€ link
Active carbon 1kg i.ebayimg.com_thumbs_images_g_gbmaaosw0gdxtwgq_s-l96.jpg Active carbon for bad smell 1 9€ 9€ link
Pre filter G4 matte i.ebayimg.com_thumbs_images_g_4dkaaoswvljfs4wh_s-l96.jpg Filtermatte G4 for prefilter 1 10.85€ 10.85€ link
Hepa TE70TE15021 Hoover i.ebayimg.com_thumbs_images_g_ot4aaoswwhrhi_9v_s-l96.jpg Hepa Filter 1 5.5€ 5.5€ link 18x98x108mm, 190cm3, sealing on the bottom, seems easy to attach
Hepa Bosch BSA i.ebayimg.com_thumbs_images_g_5xsaaoswj0nhi_o3_s-l96.jpg Hepa Filter 1 6.4€ 6.4€ link 11.8×132.5x96mm, 150cm3 sealing on top, side plastics makes it difficult to attach
Hepa Zelmer ZVC i.ebayimg.com_thumbs_images_g_kwiaaoswsv5hjhp5_s-l96.jpg Hepa Filter 1 6.7€ 6.7€ link 21x108x98mm, 220cm3, sealing on the bottom, seems easy to attach
Hepa Ariete 2741 i.ebayimg.com_thumbs_images_g_nrkaaoswzcrhjdfv_s-l96.jpg Hepa Filter 1 5.4€ 5.4€ link 19x104x96mm, 190cm3, sealing on top, seems easy to attach
Hepa Electrolux T8 i.ebayimg.com_thumbs_images_g_mjuaaoswqyrhi9zm_s-l96.jpg Hepa Filter 1 5.4€ 5.4€ link 21x88x103, 190cm3 sealing on top, side plastic makes it difficult to attach
Hepa Siemens VS i.ebayimg.com_thumbs_images_g_qzyaaoswrsvdlhoa_s-l96.jpg Hepa Filter 1 9.9€ 9.9€ link 32x95x82mm, 250cm3 sealing on top, side plastic makes it difficult to attach
160.52€

Design considerations

Final Design

Assembly procedure

  1. Position the inner supports and the 6 x M4 nuts
  2. Glue the lock surface on top of the nuts
  3. Screw the fan to the Fan Support, by making sure to have both protection grids installed, use the M4 60mm screws
  4. Assembly the main body
  5. Add a thin layer of G4 on the back of the fan
  6. Add the active carbon
  7. Add the F8/ filter
  8. Add the F8/9 filter
  9. Screw the Air Inlet using the M4 30mm screws
  10. Attach the Motor Controller to the top side of the control box, using 8 x M3 8mm screws and 4 x 10mm M3 StandOffs
  11. Pass the cables through the cable gland
  12. Screw the cable gland to the back of the control box
  13. Assembly the control box

Final BOM

Total cost is about 60€

Item Picture Description Qty Unit Price Total Price Link Comment
MS1238E12B-FHR-2EM media.digikey.com_photos_mechatronics_20fan_20group_ms1238e12b-fhr-2em.jpg 120x120x38mm fan 1.200 in H2O (298.9 Pa) 1 26.70€ 26.70€ link
SC120-W5 media.digikey.com_photos_gardtec-incorporated_mfg_sc120-w5.jpg Metallic fan protection for 120mm fans 2 0.6€ 1.2€ link
F8 / F9 Feinfilter matte Filtermatte F8 or F9 1 0.5€ 0.5€ link Here a 120x120mm piece is needed, price is calculated accordingly.
Pre filter G4 matte i.ebayimg.com_thumbs_images_g_4dkaaoswvljfs4wh_s-l96.jpg Filtermatte G4 for prefilter 1 0.5€ 0.5€ link Here a 120x120mm piece is needed, price is calculated accordingly.
Active carbon 1kg i.ebayimg.com_thumbs_images_g_gbmaaosw0gdxtwgq_s-l96.jpg Active carbon for bad smell 1 9€ 0.9€ link Here less than 100g are needed, price is calculated accordingly.
Hepa TE70TE15021 Hoover i.ebayimg.com_thumbs_images_g_ot4aaoswwhrhi_9v_s-l96.jpg Hepa Filter 1 5.5€ 5.5€ link This is usually used in vaacum cleaner.
6mm Wood Sheet www.atlantictimber.co.uk_user_products_large_sheet_20material_efficiency_poplar_plywood.jpg 6mm Poplar Wood 600x400mm (approx) 5.8€ 5.8€ link Also another kind of light wood would do it. MDF is not recommended.
4mm Wood Sheet or MDF 32.cdn.ekm.net_ekmps_shops_trustleaf_images_4mm-mdf-sheets-6816-p.jpg 4mm Poplar Wood or MDF 250x250mm (approx) 3€
PLA Filament www.filamentworld.de_wp-content_uploads_2020_02_3d-drucker-filament-pla-matt-175mm-schwarz-3.jpg Normal PLA filament 100g (approx) 2.5€ 2.5€ link
Cable Gland PG7 1
Superglue i1.wp.com_bioplasticsnews.com_wp-content_uploads_2020_02_biobased-super-glue-e1582663717343.jpg 1
Power Supply m.media-amazon.com_images_i_71pfvdpihsl._ac_sl1500_.jpg 12V 5A or more 1 15€ 15€ link Needs to be a power supply of the type that does not need an enclosure.
Fasteners automatedfastening.com_wp-content_uploads_2018_03_automated-fasteners-constru.jpg DIN 912: M4-30mm x 4, M4-60mm x 4, DIN 934 M4 x 8, Standoff (Plastic) M3-10mm x 4
projects/diysolderingfumeextractor.txt · Last modified: 2021/11/22 18:44 by daniele