A 3D printed ratchet that can really handle torque
Printed tools aren't exactly known for their durability, but [Gladius] shows us that with thoughtful design, it's possible to print a ratchet that can handle surprising torques.
Look closely and you can see that the parts are almost entirely perimeters (click to enlarge).This particular wrench is inspired by NASA's 3D-printed ratchet, as well as a design from the early 1900s. It sports a 1/2 inch square socket into which modern adapters can be fitted, allowing those steel parts to do their job while the wrench itself delivers the muscle.
>[Gladius] found that the best results came from slicing the parts - especially the hilt - so that they come out almost entirely made up of perimeters, with hardly any traditional infill. Want to know more? There is a discussion on reddit where [Gladius] gives additional details on metrics and performance.
Over the years, we've seen our share of powerful prints. For example, what the Crimson Axlef*cker can do seems downright daunting. Speaking of printing things that move, we want to remind you of this handy trick to easily and reliably join motor shafts to printed parts by (mis)using jaw couplings.
Printed tools aren't exactly known for their durability, but [Gladius] shows us that with thoughtful design, it's possible to print a ratchet that can handle surprising torques.
Look closely and you can see that the parts are almost entirely perimeters (click to enlarge).This particular wrench is inspired by NASA's 3D-printed ratchet, as well as a design from the early 1900s. It sports a 1/2 inch square socket into which modern adapters can be fitted, allowing those steel parts to do their job while the wrench itself delivers the muscle.
>[Gladius] found that the best results came from slicing the parts - especially the hilt - so that they come out almost entirely made up of perimeters, with hardly any traditional infill. Want to know more? There is a discussion on reddit where [Gladius] gives additional details on metrics and performance.
Over the years, we've seen our share of powerful prints. For example, what the Crimson Axlef*cker can do seems downright daunting. Speaking of printing things that move, we want to remind you of this handy trick to easily and reliably join motor shafts to printed parts by (mis)using jaw couplings.
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