6 model

Free

Sharpener with rotary mechanism -3d printer

Thingiverse

Free

Filament Sharpener -- 1.75mm

Thingiverse

Free

Parkside drill bit sharpener

Thingiverse

Free

Handmade leather sharpener

Thingiverse

Free

Raymond Loewy Streamline Pencil Sharpener

Thingiverse

Free

Tailor's Chalk Sharpener /Schneiderkreide-Schärfer

Thingiverse