Коробка для нитей своими руками - держатель для стержня....
Источник:
You buy a plastic box with a top cover about 30x50x30 cm, insert the two holders to the sides, put a rod in between while inserting the the spools to the rod.
Drill small holes about 3-4mm in the top cover where the filament will come out of the spool holder. Done!
