Vertical Stackable Filament Spool Spacer / Holder

Please Note: There is a Version 2 available which now includes self-aligning pegs to allow the lower spool to stay aligned when removing the spool above. Here is the link for Version 2: https://makerworld.com/en/models/2361157-vertical-stackable-filament-spool-spacer-holder-v2?profiled=2583435#profileId-2583407 Maximize your shelf space! Easily stack filament spools vertically with these simple, printable spacers—no more tangled piles or wasted room. 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 spoolUse almost no filament to do it Why this designMinimal filament usage (~7-8 g per spacer)Fast print (minutes, not hours)No rods, no t