Simple Filament Spool

Reduce waste and cut costs by printing your own, re-useable spool and buying refill filament.

Below parts are needed.
- M3 x 10mm screw and nut : 10pcs.
- M3 x 40mm screw and nut : 4pcs.
- M3 butterfly nut : 4pcs.

Filament coil
- Filament coil inner dia. : 80mm / 120mm
- Filament coil outer dia. : 150mm
- Filament coil width : 23mm
- Mounting hole : 36mm

http://nature3d.net/

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