From cleanup to air filtration, these heavy-duty 3D printing tools can speed up messy jobs, improve safety, and make projects much easier overall.

Sure, 3D printing a pen holder isn't very exciting, but it might just be the most useful projects to come out of your printer ...

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 ...