Prolific manufacturer [sjm4306] Tell us that the first iteration of his welding fan was nothing more than some cardboard, electrical tape and a broken USB cable. But as we all know, these small projects will develop over time. Fast forward to today, His custom fan is a carefully polished kit Anyone with a soldering iron will be proud to have it on their workbench.
Cardboard has given way to a 3D printed housing that can hold a fan, electronics, a pair of 18650 batteries, and an easy-to-replace filter. Between the marble filament, the recessed logo, the proper countersunk screw holes and the rounded corners, it is hard to exaggerate how good this case looks. We shamefully made enough boxy 3D printed shells, knowing that it takes time to add all these small details, but the end result is indeed self-evident.
The user interface running on OLED is also a very nice touch.The fan is definitely not good need Graphic display, and [sjm4306] Using a turnkey speed controller could have saved a lot of time and effort, but the button configuration and graphical indication of fan speed and battery life did give the final product a highly professional feel.
In the video below, [sjm4306] It reveals that although the finished product may look great, there are still some bumps in the road. The clearance problem inside the case made him rethink how to wire and install things, resulting in a much narrower layout than he expected. Part of the problem is that he first designed the case and then tried to integrate the electronics, not the other way around. A common pitfall you should be aware of.
It turns out that if there is no external input, solder fumes will be sprayed directly on your face. Whether you need to do such a complicated thing is naturally controversial, but if you want to keep all these nasty things away from your lungs, then you’d better install some kind of fan on the workbench.