# Carboard Spool = No Problem Polymaker has addressed a common issue for 3D printing enthusiasts using multi-material systems like the Bambu Lab AMS: the compatibility of cardboard spools. Traditionally, cardboard spools had soft paperboard edges that were prone to wear and damage, especially with the repeated forward-and-backward motion inside automatic material stations. This sometimes resulted in cardboard dust, poor feeding, and spools that would slip or jam. Responding to user feedback, Polymaker introduced new cardboard spool designs with **hardened or sealed edges**. These reinforced edges provide a much more durable and smooth rolling surface, dramatically reducing friction and the risk of the spool snagging or disintegrating during use. As a result, the upgraded spools now **spin reliably in the AMS and similar multi-material systems**, making them virtually as effective as plastic spools while offering the environmental benefit of cardboard construction. {% embed url="" %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://wiki.polymaker.com/polymaker-products/more-about-our-products/other-polymaker-information/carboard-spool-no-problem.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.