Dispense 60 Bolts In 2.3 Seconds

We’ve covered a number of projects that assist makers who need to fill orders for their small businesses, or kitting. [Helmke] has sorted thousands of pieces of hardware that they include wit…

Radial Vector Reducer Rotates At Really Relaxed Velocity

When [Michael Rechtin] learned about Radial Vector Reducers, the underlying research math made his head spin, albeit very slowly. Realizing that it’s essentially a cycloidal drive meshed with…

Magnetic Gearbox Can Go Fast But Not Hard

3D printed gearboxes are great for experimental designs, but due to roughness and inaccuracies in the printed surfaces, they can wear quickly and be rather noisy. As a possible alternative, [Resetm…

Stackable 3D-Printed Gearbox For Brushless Motor

Affordable brushless motors are great for a variety of motion applications, but often require a gearbox to tame their speed. [Michael Rechtin] decided to try his hand at designing a stackable plane…

Can A Drone Push A Bike?

It sounds like a rhetorical question that a Midwestern engineer might ask, something on the order of ‘can you fix this bad PCB spin?’ [Tom Stanton] sets out to answer the title question…

3D-Printed Gear Press Can Squash Stuff, Kinda

A press is a useful thing to have, whether you like destroying stuff or you simply want to properly install some bearings. [Retsetman] decided to build one from scratch, eschewing the typical hydra…

Printable Fix For Time Card Clock Has Owner Seeing Red Again

When [Morley Kert] laid eyes on a working time card-punching clock, he knew he had to have it for a still-secret upcoming project. The clock seemed to work fine, except that after a dozen or so tes…

Resin-Printed Gears Versus PLA: Which Is Tougher?

When it comes to making gearboxes, 3D printing has the benefit that it lets you whip up whatever strange gears you might need without a whole lot of hunting around at obscure gear suppliers. This i…

Do You Need A Cycloidal Drive?

A cycloidal gear drive is one of the most mesmerizing reduction gears to watch when it is running, but it’s not all just eye-candy. Cycloidals give decent gearing, are relatively compact and …

Testing 3D Printed Worm Gears

Worm gears are great if you have a low-speed, high-torque application in which you don’t need to backdrive. [Let’s Print] decided to see if they could print their own worm gear drives t…