Modular Spool Mounting System for the Centauri Carbon

In this video, I'm releasing v3.6 of my internal spool holder for the SE3D Centauri Carbon. What started as a simple self-centering fix turned into a full modular spool management system. What's new in v3.6: - Self-centering cone interface for blind, one-handed spool swaps - Mount length variants: swap mounts instead of reprinting the whole holder - Fixed PTFE tube retention in the optional low-friction channel - Improved top geometry for smoother spool feed and reduced drag - Version number embossed directly on the part - Twist-lock interface remains compatible with previous versions Also in this video: - New external spool holder: mounts in the OEM spool holder position using the same internal spool holder twist-lock interface mount, turning your Centauri Carbon into a two-spool machine - Stress tested with a 3kg spool of PETG-CF - STEP files available for club members on Printables Download the free 3MF on Printables:https://www.printables.com/model/1664739-twist-lock-spool-holder-v36 Includes all mount length variants, the retention knob, the external spool holder, and Polymaker-tuned profiles for printing on the ECC1. STEP files for club members: https://www.printables.com/model/1676663-twist-lock-spool-holder-v36-step-files This video is sponsored by @Polymaker. Filament provided by Polymaker. Affiliate links support the channel: - White Polymaker HT-PLA: https://shop.polymaker.com/products/polymaker-ht-pla?variant=40294530908217&aff=1231&utm_source=affiliately&utm_campaign=aff - Yellow Polymaker ASA: https://shop.polymaker.com/products/polymaker-asa?variant=40294530908217&aff=1231&utm_source=affiliately&utm_campaign=aff