I was really happy when I saw [%7724467652] post these! I thought the design looked incredibly neat, and the fidget aspect is just plain fun. I actually Cloud printed the caliper portion on my Ender 3 V3 KE while I was at work. I ran it at a 0.12 layer height without any supports. Once I got home, I knocked out the rotor on the K2 at 0.16, The Creality servers were a bit backed up—showed a queue of 93 people!—so I just sliced it locally. So despite the congestion, it finished up fast, right around 20 minutes Like any good mechanical fidget, it needed a tiny bit of break-in time to seat everything, but now it is moving smooth and nice. To the creator, Awesome work on the design! Anyways, For anyone thinking about printing this, Treat Yourself, It's worth it.