Chisel honing guide or jig. Top piece can be turned over which has grooves for 1/4, 1/2, 3/4 and 1 inch chisels as well as a 50mm plane blade.
Parts needed.
I made sure this one was designed small enough so small blades can still be honed at lower angles if needed.
The 5/16 bolts can probably be replaced with M8 bolts but I live in US and imperial what I'm used to :)
Filament:
any PETG
Designed this after trying many other designs, as well as the cheap ones off Amazon and out of need to be able to reliably hone my chisels without fuss.