FabLab Kamp-Lintfort

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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**                  |  {{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  |                     |                 |                  |                                                                                                                                          |                                                                          |
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