It’s not new to see daily items printed out of a 3D printer but this project stands out from the rest. Eric Harrell, YouTuber and mechanical engineer, posted a video of what seems to be one of the most fascinating things you’d see in a while: a mini Subaru EJ20 WRX engine. If that didn’t seem good enough for you, did we mention that it works? Yes, this 3D printed contraption has working pistons and everything a working model should have.
Sadly, there’s no way for you to mount this on a 3D printed car yet and it’ll take a huge amount of effort (and resources) to put one together. The engine runs on electricity as opposed to combustion and would be a very good tool for engineering students who want to rip apart an engine to see how it works. Aside from that, the engine is pretty much for display only.
For instructions on how to build this, check out his channel on YouTube.