Are there any other European filament-manufacturers that sell plain filament-refills for use with the Master Spool other than Das Filament? I tried googling around, but I seem to only be getting irrelevant hits or blog-posts talking about the Master Spool, not where to buy refills for it.
Filaments.ca in Canada
I mean, there’s nothing specifically wrong with Das Filament, AFAIK, but they have a rather small selection of filament-types and colours available for Master Spool.
@Cullen_Grant Alas, Canada ain’t in Europe 
Nope, actually nobody. I think it’s just not the thing to do here. Actually spools are rather cheap and not that heavy, so I think European manufacturers could only give a discount of maybe 1€ per spool. Shipping in Germany doesn’t get cheaper either that way because you pay within a weight range. DHL charges about 5€ for up to 5kg so it doesn’t make sense.
It’s a shame. I have no need for a billion empty spools, they’re just waste space, effort, resources and money.