5015 fan emulator

thingiverse

I've been battling bad 5015 fans for days. I wanted to ditch the massive dual 50x50x10 parts cooler with two 12v fans running in series on my Ender 3, so I printed one of those nifty Hero Me fan units everyone's raving about. I tried four different 5015 fans and they all died within a day. Meanwhile, these 12v fans have been working like champs for months - they're connected in series to the 24v system, but I've checked the voltage and it's maxing out at 24.5v on the circuit board. I could adjust my power supply down by half a volt, but that shouldn't make a difference since I'm only running the fans at around 80% speed, which is about 19v. I got fed up, so I'm not giving up on finding one of those mythical 5015s that can actually work. While these four go back to their makers, I whipped out my trusty Fusion 360 and slapped together a 5015 emulator using the old stacked 50x50x10s - they're still 12v, after all. Realizing this might not get any takers, I printed three parts as flat as possible (no part cooling, remember?) and connected them with CA glue and kicker. Then I hacked up my Hero Me to make it fit a bit better. I'll be printing another one as soon as I find some real 5015s. If you're feeling adventurous or want to try this at home, here's what you'll need: four M3x20 screws (or M3x10 if you have a 24v 50mmx10 axial fan), some fans, and a healthy dose of frustration.