Multi-Brand Refill Spools for A1 Mini

Description This project includes several spool holders designed for refill filaments from different brands (Smartfil and Bambu Lab), optimized for printing on the Bambu Lab A1 mini or any 3D printer with a 180 x 180 mm build plate. The connection system between the two halves is inspired by Bambu Lab’s refill spool, but I’ve made a few improvements to enhance printability:Reduced overhang angles.Added markers to indicate the correct position for the locking piece. Key FeaturesStrong connection between both halves.Easy assembly without the need for tools.Optimized for Smart Materials refill spools.Designed specifically for the A1 mini: the side cutouts make it incompatible with AMS units (except AMS Lite), as it must be supported through the central hole only. It’s not suitable for spool holders that rotate by supporting the spool edges.Material- and time-efficient design to minimize filament use and printing time. Each brand’s print profile containsPlate 1: Bottom half + locking piece