Update to Mark2 - Soldering Fume Extractor / Absorber

thingiverse

Update: Please read this update carefully! The latest files are marked "Mark2". I was looking for a commercial fume extractor but saw the high price tag and decided to search for a DIY solution on Thingiverse. I found the fume extractors linked as remix sources, but thought of something more complete, with an on-off switch and detachable from power supply. So this is the design I created from scratch. It features a switch on top with a LED indicator, has a metal fan grille on the back for safety reasons and a printed clip-in grille at the front to secure the activated carbon filter in place. Furthermore, it's a larger design: The 80mm 12V fan provides power to suck in all the bad things coming from solder. Please take a look at the print settings and post-processing section for more details. A detailed write-up in German will be available at http://www.martinmajewski.net. Check out my other designs, printer parts, and tools as well. If you like to support me and my work, please consider following me on Thingiverse, MartinMajewski.net, Twitter, Instagram, YouTube. Sending a tip over Thingiverse will provide me with coffee to stay productive. Print Settings: Printer: MendelMax 3 from Makers Tool Works Rafts: No Supports: Doesn't Matter Resolution: 0.2 Infill: 10% to 20% Notes: I printed the body and the grille on my MendelMax 3 (http://goo.gl/93ys1Y) printer using a 0.4mm nozzle and 0.2mm layer height. There should be no infill needed for the body's walls, just use enough perimeters. Supports are optional. I used some for the switch hole and the cable hole (see picture), which I created with Simplify3D. My print time was about 6 hours for the body and one hour for the grille. The switch has a necessary hole diameter of 2.1mm, so does the 3D model. If you want to use a switch with another diameter, please let me know in the comment section. I will provide an additional STL file with this diameter as soon as possible! Post-Printing: Required additional hardware: To build this extractor, you need besides the provided STL files: Universal activated carbon filter (e.g. http://amzn.to/2c9kTnU) Shrink tubing (DE: http://amzn.to/2bJYHRU - e.g. UK: http://amzn.to/2bXcMMr) black and red wires (e.g. DE: http://amzn.to/2bCGIut - UK: http://amzn.to/2bUOrcA) Shrink tubing black and red wires A quick overview of the final result. Function Demo Project Updates: Updated to Mark2 The Mark2 version of the fume absorber has some improvements and should also be easier to print. Changes in detail: Switch hole has now two notches so that the suggested switches can be snapped-in easier without any need to resize the hole after print. With the two notches, it is now possible to print the hole without the necessity of support material. I printed the new version with my Prusa i3 MK2, and it went perfectly. The stand/foot is now flat with the back of the body so that it gets printed directly onto the print bed. No support needed, no overhang artifacts. The stand/foot is now wider and the edges rounded, which makes the absorber stand more stable on the ground, and the roundings look better (IMHO) and are easier to print. The absorber is now about 5 mm taller because of the stand/foot changes, which make the fume absorption more effective. The cable hole is not 6 mm wide and is more nicely routed into the absorber's housing. The front grill has lips at the clip-in sides now, which prevents the housing from being pressed/squished inwards.