Ari [APz] SovijärviYep, this thing takea a lot of table space!
I think I'll use the Polymaker filament boxes and stack them on a shelf above the printer for easy access.
vxo
Jon Gilbert@apzpins yeah.. this is my number-one reason for not pulling the trigger on the MMU3 for my MK4; the spools and feeds have maximum flexibility, but I just don't have that amount of horizontal or vertical space where my printer lives 🙃
@jgilbert I'm contemplating on a setup where it had 4 "permanent" filaments in boxes and one loose spool that can be swapped out quickly. But yeah, no way this can live like they intended. Besides the filament holders are the sucky type that came with the Mini+ too.
Kernel Bob 
@apzpins Take a look at the auto-rewinding spools on Printables. I've been using them for the last 18 months. They work pretty well. I think there's a version that fits inside the PolyMaker box. I use the version that fits the (un)official Prusa drybox.
https://www.printables.com/model/702217-mmu3-mmu2s-5-spools-auto-rewinder-adapter-for-unor
@apzpins I talk about my system in this thread (both above and below this post -- this post has the good photo).
@kbob How do these work? Are they spring loaded or is there some fancy motor setup in them?
@apzpins There is a coil spring inside the hub. When the spool rotates, the spring winds up. When the spring gets tight, the spool starts slipping on the hub. The spring is able to rewind 15-20 inches (35-50cm) depending on filament diameter.
@kbob Curious design. I'll have to look into these. Thanks!