My concept for a quick-change adapter for easily attaching/detaching the Bambu Lab AMS feeder. This lets you easily detach the AMS to manually feed filament from an external spool.

My design skills are amateur at best, so there's definitely room for improvement here and I encourage anyone to evolve this concept. Please see the Areas for Improvement section below.

Bill of Materials:

1. PC4-M10 Pneumatic Fittings - Amazon
2. 12x4mm Neodymium Ring Magnets - First 4 Magnets
3. 6x3mm Round Magnets - Amazon
4. PTFE Tube (if necessary) - Bambu Lab Store

Printing Instructions:

• I really like PLA Tough filament for projects like this because it seems to be a little more pliable and less prone to cracking.
• Print using 100% rectilinear infill with 0.16mm layer height.
• Print the objects using the orientation defined in the STL file. You will have to add supports below the base for the printer-side coupler. Painting them on this area with Bambu Studio works best.

Assembly Instructions:

• The magnets should easily friction-fit into the holes, but feel free to add a drop of superglue if necessary.
• Stack two disc magnets for each of the couplers.
• There are no threads for the pneumatic fittings because that is outside of my Tinkercad skill level. This is definitely something that can be improved. However, I mounted the couplers in a bench vice and carefully tapped the pneumatic fittings in by applying pressure while turning with a box wrench. (This is why I recommend PLA-ST or another "tough" filament.)
• You may need to add a longer PTFE tube to the printer so there is enough slack to fully engage the pneumatic fitting. Use your best judgment here, just make sure the toolhead can access the entire print surface.

Opportunities for Improvement:

1. Threads for the pneumatic fittings would be nice.
2. Source magnets that are less expensive than those linked in the BoM.