Stackable spool spacer

Maximize your shelf space! Easily stack filament spools vertically with these simple, printable spacers—no more tangled piles or wasted room. This is an updated design with self-aligning pegs on both sides to allow for even more stability. ProblemStacked filament spools rub, slide, roll, and generally behave like they’ve had too much caffeine. SolutionA tiny, lightweight spacer that fits over the Bambu Lab spool hub and keeps stacked spools separated without wasting filament or print time. Why not just stack spools?You can — but spacers:Prevent spools from rubbing and bindingKeep stacks more stable if bumpedMake it easier to grab a single spoolDon't use a lot of filament Why this designMinimal filament usage (less than 20g per spacer)Fast print (under an hour)No rods, no towers, no moving partsSized for Bambu Lab / AMS-compatible spools but works on Sunlu V3 and even printable refill spoolsWorks on shelves, in closets, or storage binsSupports required, but not difficult to removeTh