My entry for the 3DPN 3D Printing Design Contest.

This spool holder is made of 3 parts. The first part ("holder") is quite flexible, allowing you to spread it so that you can pass it around the board.

Once the holder is in place, you juste have to secure it by screwing the cylinder. Thanks to this cylinder, the holder will be tightened around the board.

Then, you can put your spool on the cylinder and to avoid this spool to drop, you just have to place the plate at the back of the cylinder.

The idea here is to be able to remove the spool holder easily and also to be able to customize it by changing the lenght of the cylinder (or even the design) to fit most of the spools of the market.