Measure the hole through the middle of your spool, how long that hole is, and the axle or holder you want it to turn on, and we will cut a ring that fills the gap: its outside fits your spool and its middle fits your axle, each with a little clearance. A rim on the outside rests against the side of the spool so the adapter cannot slide in; you can leave it off. Two adapters, one in each side, hold the spool square — you print the same file twice. It prints standing on its rim, with no supports.
Rendered at our default measurements — yours comes out to your numbers.What you need before you start
What it will take
Spool centre hole, across: 20–120 mm
Spool width at the hole: 15–150 mm
Axle or holder, across: 5–100 mm
One adapter or two: 2 to choose from
Rim on the outside: 2 to choose from
Nozzle size: 5 to choose from
Filament: 4 to choose from
As it comes
Outside, to fit your spool hole54.6 mm
Hole in the middle, for your axle22.6 mm
Goes into the spool hole15 mm
Filament per adapter, at most (printed solid)22 g
Build plate: 65 mm as it comes, never more than 256 mm.
What you need to hand
A calliper with inside jaws for the hole through the middle of your spool, and a ruler or calliper for how long that hole is.
A calliper for the axle, rod or holder the spool will turn on.
Your nozzle size and the filament you will print it in.
The part, drawn to your numbers
Cut through the middle, standing as it prints — the rim on the build plate, the axle hole in the centre
Drawn from the numbers in the form below, off the same geometry the file is cut from. It is not a photograph, and there is no photograph — every part that leaves here is a different size.
