AMS adapter for larger spools with 199mm diameter

This spool adapter is designed to allow the use of large 199mm diameter spools that normally won't fit the AMS or AMS Pro, eliminating the need for tedious respooling.

Credit: The original design is by the maker Lev 3DD (check out his amazing models here: https://www.printables.com/@Lev3DD).

IMPORTANT CONSIDERATIONS

• Assembly: The adapter consists of 4 pieces that must be glued to the inside edges of the spool. Use strong glue! You definitely don't want them detaching mid-print.
   

• Hardware: You can use small screws, but ensure the screw heads sit perfectly flush. If they protrude, they will hit the AMS walls and block the spool rotation.

• Clearance (AMS Pro): When using the AMS Pro, you might need to print an additional riser/adapter for the rollers. Because the resulting diameter is much larger than standard Bambu spools, the adapter might hit the AMS back wall or the front feeder.

PROS & CONS

✅ PROS:

• Compatibility: Use non-standard large spools directly in your AMS Pro.
• Efficient: Lightweight design that uses very little filament and is cheap to print.
• Convenient: Includes a built-in hole to clip and secure the filament end.

❌ CONS:

• Not Plug-and-Play: Requires manual assembly and gluing.
• AMS Cover: You will likely need to keep the AMS lid open.
• Noise: The small gaps between the adapter segments may cause a "clicking" noise while rotating on the rollers.
• Storage Issues: The increased diameter makes it difficult to fit the spool into standard vacuum bags, and vacuum pressure may cause the glued pieces to pop off.
• Extra Mods: You may need further AMS modifications to raise the spool height.

FINAL VERDICT

Is this the perfect solution? Honestly, NO! Is it even a good solution? Not even.

If you are dealing with large spools (like Amazon Basics) that are incompatible with the AMS Pro, your best bet is still to print or buy a standard Bambu-sized spool and respool the filament. You can do this with a dedicated respooler or get creative with a DIY setup like mine: