--- title: "Upcoming Challenge: November 2026" category: "challenges" subcategory: "current" order: 2 description: "November 2026 Multi-Material Printing challenge details, requirements, and preview." tags: - challenge - upcoming - multimaterial --- [← Back to Challenges Hub](../readme.md) | [Current Challenge](current.md) # Upcoming Challenge: November 2026 ## Challenge: Multi-Material Printing Explore the boundaries of multi-color and multi-material additive manufacturing! Whether you use an AMS, MMU, toolchanger, IDEX, manual filament swapping, or dual extrusion, show off what is possible when combining colors and materials in a single print. ### The Focus: Multi-Color & Multi-Material Mastery The goal is to showcase prints that utilize more than one material or color: - **Multi-Color Aesthetic Models**: HueForge paintings, color-separated figurines, badges, and decorative art. - **Multi-Material Functional Prints**: Rigid bodies with TPU flexible gaskets/grips, dissolvable/PETG support interfaces for flawless overhangs, or contrasting text inserts. - **Manual Layer Swaps**: Single-extruder layer-pause color swaps for signage and high-contrast designs. ### Submission Requirements * **Physical Model**: Bring your multi-material/multi-color print to the **November 18th, 2026** meetup. * **Open to All Setups**: Automated filament systems (Bambu AMS, Prusa MMU, Voron StealthBurner ERCF, Snapmaker), multi-toolheads, or manual pause-at-layer color changes all qualify! * **The Story**: Share your workflow, slicer tips (purge tower optimization, flush volumes, interface materials), and how you dialed in your print. ### Judging & Prize * **Voting**: Community members present at the November meetup will vote on favorite prints based on execution, color design, and technical mastery. * **Prize**: The winner will receive a **free spool of filament**! ### Timeline * **Challenge Announcement**: October 28th, 2026 (at the October meetup) * **Show & Tell / Voting**: November 18th, 2026 (during the November meetup) * **Winner Announcement**: November 18th, 2026 (end of the November meetup) --- **This challenge will become the active challenge for November 2026**