Gridfinity Spool Roller for BMS Box (SUNLU/AMS)

Upgrade your filament management with this Gridfinity-compatible Spool Roller, specifically engineered for the BMS (Box for Material Storage).BMS - Box for Material Storage (AMS Lid - SUNLU) - Free 3D Print Model - MakerWorld If you're using the BMS, this insert is the perfect solution to keep your spools stable, rotating smoothly, and perfectly aligned within the 42mm grid system.Key Features:BMS Optimized: Tailored to fit the footprint of the Box for Material Storage without wasting space.Gridfinity Standard: Fully compatible with any Gridfinity base—use it inside your BMS box or directly on your workbench.Heavy-Duty Build: Reinforced geometry to support 1kg spools without flexing.Printing Tips:Material: PLA or PETG for durability.Supports: Minimal supports required.