If a zipper breaks, a 3D printer might not be the first tool one reaches for — but it’s more feasible than one might think. [MisterJ]’s zipper slider replacement is the kind of 3D print that used to be the domain of well-tuned printers only, but most hobbyist printers should be able to handle it nowadays.
The two-part design allows installation without unsewing the zipper ends. ” data-medium-file=”https://hackaday.com/wp-content/uploads/2026/03/zipper_v3_3d.webp?w=400″ data-large-file=”https://hackaday.com/wp-content/uploads/2026/03/zipper_v3_3d.webp?w=782″ class=”size-medium wp-image-998646″ src=”https://hackaday.com/wp-content/uploads/2026/03/zipper_v3_3d.webp?w=400″ alt width=”400″ height=”320″ srcset=”https://hackaday.com/wp-content/uploads/2026/03/zipper_v3_3d.webp 837w, https://hackaday.com/wp-content/uploads/2026/03/zipper_v3_3d.webp?resize=250,200 250w, https://hackaday.com/wp-content/uploads/2026/03/zipper_v3_3d.webp?resize=400,320 400w, https://hackaday.com/wp-content/uploads/2026/03/zipper_v3_3d.webp?resize=782,625 782w” sizes=”(max-width: 400px) 100vw, 400px”>The two-part design
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