The file 'Small Wire Spool 3D Printer Model' is (stl) file type, size is 10.2KB.
A friend needed some simple, small, cheap spools that fitted in with the others he had for wire wrap wire. Lots of it.
Internal/usable dimensions: 30mm core. 20mm depth, 23mm width.
Two holes on each side for start/end.
The larger one has a final internal width of 36mm, hopefully.
EDIT: I would not recommend it for something like filament, it's for thin stuff. Like wire or thread.
wirespoolholder.stl | 26.4KB | |
wirespoolholder_larger.stl | 26.3KB |