I wanted a better, cooler-looking knob for my printer's LCD so I fiddled around in OpenSCAD and came up with this awesome design! OMG I love it! It took me like 10 minutes and yet... Wow! I can't believe how well this worked out on the first try!
https://gfycat.com/craftypoliteauklet <--See my knob in action!
Because I'm such a nice guy I'm going to share. Get your fingers on my knob today!
=D
I recommend 0.15mm layer height or finer resolution. Also make sure you've got decent cooling or you might have some issues on the corners at the lower layers (like I did; sigh).
The author hasn't provided the model origin yet.