Compatible with Prusa: Spool Hub Adapter for 32mm Rods

Your printer, running the way it should.

44k downloads in the maker community

$10.55

Color: Gray

Printed in the USA when you order.

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2.We print it fresh
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Adapts spools with 53mm inner diameter to fit 32mm filament holder rods
Customizable design lets you adjust dimensions, collar, and chamfer
1mm clearance ensures smooth rotation on axle without binding
Tight compression fit securely grips the spool hub during printing
Includes 25mm version compatible with Prusa i3 HEPHESTOS holder

This universal spool hub adapter solves a common workshop problem: filament spools with large inner diameters that don't fit standard holder rods. Designed to bridge the gap between 53mm spool hubs and 32mm tubes, it ensures your spools spin freely without wobble or friction.

The adapter features a smart dual-tolerance system. The inner diameter includes 1mm of clearance for effortless rotation on your rod, while the outer arms add compression to grip the spool firmly. You can customize dimensions, add or remove collars, and adjust chamfers to match your exact setup.

A 25mm variant works with the Prusa i3 HEPHESTOS filament holder, and alternate four-arm versions are available for different spool designs. Whether you're organizing a print farm or streamlining a single machine, this adapter brings flexibility to filament storage.

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