How ERCP Filament Buffer works

This short video shows why you need a filament buffer for multi-material 3D printing, and how the ERCP filament buffer works.
About the project by EtteGit:
github.com/EtteGit/EnragedRab...

[@planckstudios]

Great idea! I had to eliminate the buffer from my mmu to fit it into a smaller space. I used the RepWinder STL to fit 5 spools next to each other in their RepBox. It's about $200 all in but having 5 reliable self-rewinding spools in a drybox that's thinner than my lack enclosure and mounted just a foot above it is pretty wonderful.

[@stanescutheodor2425]

Amazing design ! I kept putting off printing a self rewinding spool because of the spring that had to be printed cause they always have to be replaced eventually

[@kamilhorvat8290]

Why not use auto rewind spool holder? That's also what Bambu used on AMS lite.

[@nachomahn]

Thanks! I knew I needed a buffer for the carrot feeder I am about to build, but I wasn't quite sure how it worked just looking at the CAD. I think I will try and tweak it a bit (flip the spool holder, add hooks to the feet) so I can hang a few of them off bottom of the reprack above my printer.

[@designsliceprint6621]

also check the usermod folder on github, there are a couple for the feet, upside down, magnetic feet etc.

[@raymondelder5004]

that's brilliant! i have a Prusa mk3 with a mmu and the buffer takes up a lot of space, ao i might make a few of these...

[@milz0]

very clever, im building the ECRF V2, parts on route

[@kyootfox]

How many loops should be in the buffer cage? Is there a formula for the retract distance per loop?

[@PapaDupz]

Why not implement a cutter? Instead of reversing the filament just have the next filament push the rest through?

[@srinivashk3602]

Epic.

[@dopeyiniraq]

Can these be mount on a wall with he ptfe tube done?

[@DrGeta666]

Or you could just use an auto rewinder. Then if you swap out the filament you don’t have to deal with the buffer again.

[@Golf3gti1]

Cool idea is there the file for the filament holder ? I would like to download

[@designsliceprint6621]

you can find them here under ERCP: github.com/EtteGit/EnragedRabbitProject

[@Golf3gti1]

@@designsliceprint6621 I am not familiar with this link sorry. Where can I download the STL file ?

[@jakefromstatefarm8545]

@@Golf3gti1 in the link he posted.

[@zebsolaria4763]

how does all that unwinding and rewinding not result in clogs?

[@TheRobojay]

why would it? The biggest concern I see is that this system doesn't use a cutter for the filament when unloading

[@JohnJohn-gy2st]

Hello 600

[@Todestelzer]

Idk never worked for me 😂