[~50g filament usage] ESUN, ROSA3D, Prusament, Kraus spool (1Kg refill coil)

This spool is designed to use with threaded inserts

I used the ones from cnckitchen:

http://cnckitchen.store/shared-products/431146823?ref=v1:431146823:-1510512723

If you use the “inner - minimal” then a full spool need less than 50g.

6x M3-8 screws are used.

:edit 

added “2xOuter more stable.stl”

then it is not under 50g anymore but still good :D

(the initial goal was to stay below 50g because the filament samples were mostly 50g back then. Now you often also get 60 or 65g samples at trade shows …)

:edit 27.04.2024

added spool for Kraus refill coils.