Remix of COBRA System Filament Guides for Original Prusa Enclosure with all 5 spools inside enclosure

This remix uses the Filament Guides of the “COBRA System for Original Prusa Enclosure" to set up a system for the MMU3 with all five spools inside the enclosure including the buffer.

The following Parts/Models are used for the complete system:

Filament Guides of this model (Remix of COBRA System) 

3 Additional PTFE Tubes, for the other 2 tubes the original MMU3 PTFE tubes are long enough

Remix of the MMU3 Cassette Compatible Buffer 

5x Buffer Cassette R4 with Loading Aid

Frame Mount for Cassette Compatible Buffer

Original Spool Holder for Top Right Side and Back Left Side

Left Version of Spool Holder for Top Left Side

Extra Long Spool Holder for Left Bottom Front and Right Bottom Front Side

The Original Spool Holder Arm is usable only on left side (Spool 3/4/5), do not use on the right side because the spool could collide with the Nextruder or the printing part

75mm Spool Holder Arm usable for Spool 1/2/3/4/5

68mm Spool Holder Arm (file Arm_Prusament.stp) preferable for Spool 1 and 2

I did not use the Spool Holders of the COBRA System because they have fixed arms. So when i need to move the printer inside the enclosure for any reason, it is not possible without removing the spool holders.

Last but not least: Hinged Lid for Prusa Enclosure, not essential but makes access easier to Spool 5, the MMU3 unit and the Buffer

Follow each model's instructions for installation

Assembly:

For detailed Information see COBRA System Assembly Instructions

Mounting Instructions Filament Guides:

note the part numbers on the picture

start with 

part 1 mount on the right side at middle hight

part 2 mount on the right side at the top

part 3 mount on the left side at the top, dont forget to attach the thermometer

part 4 mount on the left side at middle hight

open the top lid if not done yet

part 5 mount on the top left side at the middle

part 6 mount on the top left side near the front

part 7 (B) mount on top front to the left

part 8 (A) mount on top front to the right

part 9 mount on the top right side near the front

now use the ptfe tubes and mount it from each spool input to the buffer, and from the buffer to the mmu3.

mount the 5 spool holders and arms, note the arm length to avoid collisions.

attach the spools and feed the filamets to the mmu3.

you are ready to print.

Printing instructions:

use PETG, 0.2mm Structural, 0.4 nozzle, 25% infill, no supports

colored the numbers on the filament guide-1 to 5 for mmu3 printing

changed guide-1 and guide-4 so that you can remove the printing support-edge easily, see picture below

shortened left side-guide (6) because there is no need for 5 PTFE tubes