Make your empty filament spool reusable!
You can take your empty inland spool and reuse it with spool less filament to save some money without having to buy the inland reusable spool.
1) Cut the side of the spool off. You will need to rotate the spool so you don't cut all the way through.
2) Print all 3 parts.
3) Push the ring onto the cut off side. The ring will help keep the side centered.
4) Add filament and assemble the spool with the spool mounts.
Spool mount ID is 37mm in order to fit over an Ender 3 spool holder (Ø35mm).
Spool mount OD is 54.5mm. Fits into my inland spools. This is also the distance across the flats for tightening the nut.
Spool width is 65mm but could handle down to 50mm and up to 70mm.
Layer Height: 0.16mm on threaded parts, 0.28mm on ring
Printer: Creality Ender 3
Line count: 3 on sides, top, bottom
Ring: 0:40 print time, 9g of material
Shaft: 3:27 print time, 26g of material
Nut: 1:25 print time, 8g of material
Total cost: $0.73 based on my filament costs.
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