I really liked Imaginarydave's design but I only needed it for one filament, so I created my own version.



You're gonna need a few parts

• I used 4mm OD, 3mm ID PTFE tube to try to reduce friction. I ordered this stuff. https://amzn.to/46UgvDl (bambu labs 4mm/2.5mm should work but you will definitely need to bevel entry points.)
• PTFE tube connector. I used the Bambu labs one https://us.store.bambulab.com/products/ptfe-tube-connector you could also use one of these from amazon https://amzn.to/3RLyR5f . alternatively you could use a single piece of tubing that runs all the way from the extruder to the manifold but I wanted the option to disconnect at the machine.
• 8mm x300mm rod. https://amzn.to/3RAq5qj alternative link: https://amzn.to/47hFPmF (you have to cut it to to lenth needed)
• M10 push connector for PTFE tubing. I used these https://amzn.to/3TcCwKm
• 4 608-zz bearings. I use these. https://amzn.to/4afBenR