Fumes Extractor

prusaprinters

<p>I had a need to keep solder flux fumes out of my face whilst doing soldering on my electronics projects. &nbsp;There are plenty of solutions that are available for purchase. &nbsp;For me this is a simple mechanical project with some incorporated electronics, so came up with my own solution from components I had on-hand.</p><p>The extractor uses an off the shelf 12V 0.3A DC brushless 120mm PC fan. &nbsp;It's USB powered and has a fan speed control. &nbsp;The working distance is up to 250mm.</p><p>My design goal was purely to keep the fumes away from my face, not to filter or cleanse the air of particulates, hence I have not incorporated any fumes filtering. &nbsp;If lack of filtering is unappealing, then this design is not for you.</p><p>The extractor is designed to be powered by a USB power source via a USB Type C connector. &nbsp;The extractor uses up to 4W at full fan operational speed. &nbsp;An externally mounted knob can adjust the fan speed from zero to full speed. &nbsp;A power switch is also mounted on the top of the case.</p><p>The extractor is mounted on a stand that elevates the fan and allows the fan to be tilted to suit the operating conditions.</p><p>Here is my 3D design. &nbsp;My design may match your needs, too.</p><p>My print is made in PETG 1.75mm 3DFillies orange filament, with 0.2mm layer height and 15% infill on a PRUSA I3 MK3S printer.</p><p>I hope you can find this design useful, too.</p><p>Remember to leave me some feedback or even a tip to keep me enthused to make more of these drawings.</p><p>ISSUE<br>-----<br>- Space for my metal fan grill was not initially allowed for. &nbsp;I integrated the grill&nbsp;<br>&nbsp;after printing by using my Dremel to gouge out a trough in the underside of the duct<br>&nbsp;printed part for the fan grill.<br>&nbsp;Maybe later to be corrected at the design stage by increasing the case walls by about 1.5 - 2mm.</p>