Error-proof Filament Selector

This is a convenient and simple filament path selector with poka-yoke features (Thanks to 特困生 whose switch design inspired me)

Three filament outlets connect to the main nozzle, auxiliary nozzle, and empty

The feed inlet connects to the feed inlets of the left and right nozzles

All external feeding paths are easily controllable interface switches

The second AMS can freely choose to enter the main nozzle, the auxiliary nozzle, or combine freely with external spools, paired with the manual track changer from my other model

You can choose to always connect the second AMS and external spools to a specific connection position, this design includes poka-yoke features to prevent material from entering the filament path selection area before it has been unloaded from the external spool holder

This design includes two models

1. Uses PC4-M6, which is a bit sturdy and easy to install, but because the metal connector is a bit heavy and cannot rotate 360°, it will cause significant tube torque

2. Uses the pneumatic connector from the official connector (or the pneumatic connector of the buffer Hall sensor), you need to pry it out with a tool and press it firmly and evenly into the slider connector

   At the same time, because the tube can rotate freely, it greatly reduces filament wear and tear

    

   

    

    

   Hardware accessories:

   Because the design is relatively compact, two 3*4 (5N) step-less positioning beads are needed for precise positioning, they look like this below

   

   6 M2*6 screws for fixation

   4 PC4-M6 (through) or Hall board feed pneumatic connectors