MMU3 / MMU2S 5 Spools auto rewinder adapter for (un)original Prusa drybox / Repbox

This is an upgrade for users of MMU and who has (un)original drybox (also works with the Slim version). This system replaces the filament buffers.

It's a project in development that I try to improve with the time, thanks for your understanding.

And thanks for your support 😉

I thinking this project to be the most useful possible :

• Easy access for changing your spools
• Auto rewinder because it's a most elegants solution than the buffer (personal opinion 😉)
• Shorty path as possible to avoid a maximum of friction
• Preservation of the opening from above for mmu maintenance 

• Beam A1 mod  and Beam A2 mod :

Those parts replace back parts Bean A1 A2 on the (un)original drybox. 

• There are 5 spool with auto-rewinding remix  (Original by Jim Nangano )
•  New guide ptfe in the drybox systeme (made by myself)

PTFE connector for MMU3 owner :

For my full MMU systeme (with the two link in the bottom) you need some PTFE tubes : 

The MMU3 come with (10 X 60 cm PTFE) tubes so I created this connector for use them, the clips used for maintain the ptfe tubes come also with the MMU3.

If you don't use a MMU3 kit you need about 4 meters ID=2,5mm OD=4mm  : (These size are with a slack )

• 2 X 85 cm
• 2 X 80 cm
• 1 X 70 cm  

I advice to buy 5 meters to be sure and cut off the excess once installed.

You needed some non printable parts :

•  screw M3x10 X20
•  608 bearings X10

Be careful to build correctly your rewinder, the axle must be placed last. Put it in starting by the lid like on the bottom photo. ( thanks to @HonzaJaros_1717380 for help with this issue)

All parts were printed with PETG Prusament  during testing.

Print the rewinder system in ASA if you use the heater for (un)original drybox.

I also do a fixation for the (un)original drybox on the Prusa enclosure  :

https://www.printables.com/model/702384-fixation-for-unoriginal-prusa-drybox-on-the-prusa-

Pass Ptfe on the top of enclosure  :

https://www.printables.com/model/702362-guide-ptfe-mmu-top-on-prusa-enclosure

Useful solution to adapt MMU systemes autorewinder to (Un)original Prusa Drybox

So is not really a remix except for two optionals parts but an add-on.