Robuta

https://formlabs.com/blog/adding-screw-threads-3d-printed-parts/
Learn about the various ways to 3D print threads, screws, and threaded inserts to combine multiple 3D printed parts for a robust mechanical fastening.
threaded insertsprintingthreadsaddingprinted
https://www.cyclingweekly.com/products/3d-printed-inserts-and-a-custom-chain-catcher-fred-wrights-merida-reacto
From a distance, the aero race bike looks like a standard affair, but up close and personal, we found it was anything but
printed insertsfred wrightcustomchaincatcher