Suggested Buffer Alternatives/ MMU Feed equipment Changes???
The Mk4s + MMU3 works beautifully and prints wonderfully. But, there are usually some kind of exceptions:
1. Loading the filament into and out of the original buffer is quite a headache, although doable with patience.
2. Getting the filament loaded into the MMU3 is often a matter of fidgeting with the filament taper, sometimes with multiple attempts.
RE: Suggested Buffer Alternatives/ MMU Feed equipment Changes???
Stock buffer works really well but the secret is, you need one of these to assist with loading.
https://www.printables.com/model/829946-mmu-loading-fork?lang=de
This is a game changer......it works perfectly and makes loading a breeze.
Also make sure the end of your filament has been straightened and use a tip sharpener to round the filament end for loading. (Something like this https://www.printables.com/model/154090-filament-sharpener-175mm).
RE:
One of the above links was incorrect and I am not able to edit the post.
Try this one for the sharpener:
https://www.printables.com/model/154090-filament-sharpener-175mm
RE: Suggested Buffer Alternatives/ MMU Feed equipment Changes???
MCS - Multi Color System for Prusa MMU3 by Real 3D Prints | Download free STL model | Printables.com
https://www.printables.com/model/555238-mcs-multi-color-system-for-prusa-mmu3
Works like a champ. 2000+ hours on mine, loads every time. Easy to build and use. Feeding filaments is quite easy.
RE: Suggested Buffer Alternatives/ MMU Feed equipment Changes???
I finally settled on this combination all kept within the Prusa enclosure
https://www.printables.com/model/461663-spool-holder-1kg-or-2kg-for-original-prusa-enclosu
https://www.printables.com/model/845863-mmu3-mounting-kit-for-original-prusa-enclosure
The loading fork makes reloading filament very easy:
https://www.printables.com/model/829946-mmu-loading-fork
Works absolutely perfectly and is the most compact solution I have found to date.