Magnetic PTFE Tube Coupler for Drybox

Several parts for a complete filament guiding system from drybox to MMU3 printer (work in Progress)
3
15
0
219
updated February 19, 2025

Description

PDF

I found several different approaches for a magnetic tube coupling system, which all have their pros and cons. However, I was not fully satisfied with all of them especially, as most of them only relied on friction to hold the ptfe tube. 

In my approach, I use ptfe clamps which are also used in e.g. V6 bowden hotends. 

Here is the link to the clips I've used:
https://a.aliexpress.com/_EJ5SexA

For the couplers, you'll also need 10x4x5mm magnets (10 mm outer diameter, 4mm inner diameter, 5mm thickness). Make sure to get the orientation right on all the parts ;) 

For the blindplug, I used M4 washers with the size 4.3x20x0.9mm and inserted them with a pause in the print. 

I recommend using 2.5x4mm ptfe tubing from ptfetubeshop 

Tags



Model origin

The author remixed this model.

Differences of the remix compared to the original

Included ptfe clips for improved tube mounting 

License