This MasterSpool Design is inspired by the idea from Richard Horne to avoid waste and reduce shipping weight.
My intention was to reduce the amount of filament and printing time, needed to build this spool by changing the locking mechanism from a threat to sort of a bayonet catch. I ended up with this lightweight but rigid "Masterspool - Twist and Lock".
Parts needed
the hub
the side part (you need two of them)
opening tool. One tool should serve for all your spools (l-type part1 and l-type part2 or s-type)
Depending on the manufacturer you will need a different spool size. Choose the parts you need from the tables below.
In order to cover the large bandwidth of different coils, I had to develop 2 types. Type-s is for the coils with small inner diameter, Type-l for those with large inner diameter. All parts of the same type are compatible with each other.
For assembly and disassembly instructions take a look at the video below or follow this link: https://youtu.be/xfV2luRR-po
To attach labeling stickers use…