This adapter system wraps the edges of a PROTOPASTA 203mm cardboard spool in order to:

• provide smooth rotation within a Bambu Lab AMS
• prevent carboard debris from depositing within a Bambu Lab AMS

Features:

• Reusable
• PROTOPASTA nameplate for easy identification when reusing

Instructions:

• Print this model twice for a single spool
• Affix one spool ring adapter on each side of the PROTOPASTA spool
• See attached photos

Notes:

• PROTOPASTA spools measuring 203mm in diameter are larger than the stock AMS lid clearance diameter of 202mm. Please see my AMS Lid Riser model which allows you to keep your AMS lid closed while providing additional clearance for larger filament spools.
• Both 500g and 1kg PROTOPASTA spools may measure 199mm or 203mm. I have a separate model for 199mm PROTOPASTA spools.
• For narrow spools measuring ~54mm in diameter the spool rim must be seated in the second lane within the AMS spool slot (see attached diagram and photos):

Considerations:

• Print Material: Please print with a basic PLA or PETG to minimize any shrinkage.
• Too Tight? Too Loose? Cardboard expands with humidity and contracts when dried. A cardboard spool that has absorbed too much moisture may cause the adapters to fit very tight. Placing the spool in a filament dryer, such as the SUNLU S2, for a bit should resolve this. Note, you should not dry the spool with the adapters attached as they can warp in the heat. Keep in mind that after a long drying session the adapters may fit too loose. This should resolve itself shortly as the cardboard reabsorbs some moisture from the air.