MMU3 label, mirrored both sides and extending the triangle pattern all the way down.
Additional Middle, with top feed and no bottom feed
Built with:
Top - https://www.printables.com/model/309165-mmu2s-buffer-top-wheel-centering-top-loading/files
Stab, Lock & Screw Case - https://www.printables.com/model/77054-mmu2s-buffer-inspired-by-rmu-buffer/files
Spool - https://www.printables.com/model/313118-improved-spool-wheel-print-without-support-for-rmu
Bottom extension - https://www.printables.com/model/489104-bottom-extension-for-the-mmu2s-buffer-inspired-by-
The author remixed this model.
MMU3 label and full triangle pattern, top feed with no bottom feed