I recently bought a one-handed queen catcher which was working incredibly well until I snapped the slide in half accidentally so needed a replacement and made one using Freecad. I have included the 3mf file for a bambu lab a1 mini and the stl for any other printers.

Print Settings:

Layer height: 0.16mm

Infill %: 100%

number of walls: 2

Filament: PLA or PETG