This is my spoolholder specifically made for Blueprint3d spools.
But the size will fit most 1 kilo rolls, except those fat ones.

This is version 3

Whats new on this version.
Bearings!

We (Jason Yannuccelli) and I designed this to be the best spool we have done improving on my last.

Anyway,
It does not require supports, If you have a small printer worry not.
It can go into a 140x140x140 printer volume.

So these photos were done on a cube 2

Also we have improved the tolerances since we 3D printed this one.
And we have split the model in case you want to tweak with any of the parts separately.
The bearings are 8mm internal dimension, and 22 mm outside diameter.

Woulds love to see photos of your prints