CORE One MMU3 Extruder cable anti sag solution. Only Tywrap needed!

Since the Extruder cable bundle is sagging pretty far after an MMU upgrade (some people even pinched the cable between left rear motor) i made an cheap but very effective solution.

It involves even the removal of original PTFE tube (store for future use or when u remove MMU altogether) and newly hexagon clip at the wiring budle.

I used the PTFE tube from MMU upgrade because that is freely to rotate and it was the original position for the ptfe to hold the cable bundle up. Another benefit is that the hexagon clip at the cable bundle can come undone very easily. This method wont.

You only need an Tywrap 9mm wide (2mm thick) cut 47-48 cm long.

Print in ASA or something strong. My test pla was to soft and the clips would easly fall of the metal bracket.

Place the PTFE guide on first and seal the and of the tywrap with an torch to make sure it never comes loose. (the print are an really tight fit also)

Then place the 3 in between holders

At last place the 3 bracket holders.

Space them like in the photo:

1st PTFe holder

Step 2 is first in between clip at ~7.2m

Step 3 is 2nd in between clip at ~16,2cm

Step 4 is the 3rd in between clip at ~24cm

Step 5 is the first metal bracket support at exactly 32cm

Step 6 is the 2nd metal bracket support at exactly 39cm

Step 7 is the 3rd and last metal bracket support at exactly 46cm

Make sure the metal bracket clips fall into their slots.

(You can resize the holes for the tywrap 8.9mm-9mm) in the 3mf file.