Iā€™m certainly not the first to come up with it, but this seems like an interesting joint design for 3d prints that need some measure of adjustability at assembly time, and being stiff the rest of it.

https://marketplace.ultimaker.com/app/cura/plugins/Ghostkeeper/SettingsGuide2 is probably my best tool in learning 3d printing so far. All those million slicing parameters explained right in the UI. What's so great about it is that the tooltips not only explain what a setting does, but also the trade-off about using it or not.

Ultimaker Cura Marketplace marketplace.ultimaker.com