Snapmaker U1 Side Spool Holder

This is a custom alternative spool holder system for the Snapmaker U1, designed for users whose filament spools don’t fit the factory center hubs. If you use spools with unusual or incompatible inner diameters, these printed hubs provide a reliable, universal replacement. Each spool holder is numbered 1 through 4 because each one mounts to a specific location on the U1. This ensures proper spacing, alignment, and clearance with the machine’s internal filament path. Parts to Print • 4 × Spool Holders Choose either the 70 mm or 80 mm version Each holder is labeled 1, 2, 3, or 4 to match its mounting position • 4 × Spool Clips These lock into the spool holder after being fastened with a screw Hardware Required • 4 × #6 wood screws (3/4” length) These secure each clip to its spool holder before installation. Print Settings (Recommended) • Layer Height: 0.2 mm • Walls: 3 • Top Layers: 5 • Bottom Layers: 4 • Infill: 25% • Supports: Not required All parts are designed to print cleanly without