Discover the detailed process of building a custom metal bending machine from scratch. Follow each step from preparing the rusty flywheel to machining brass and aluminum rollers, assembling components ...

It leaves bruises through a sweatshirt. There is a man who built a Nerf gun with that kind of power. In February 2026, a project featured on Hackaday quietly became a topic of conversation. It was an ...

This experiment recreates Leonardo da Vinci’s treadle lathe to test how early engineers improved rotational power for machining. Unlike the traditional spring-driven pole lathe, which reciprocates and ...

This project bike is using a Bajaj Pulsar N250 slipper clutch, Yamaha R15 v2 clip-ons, and a 2.5-inch projector from a 2024 Maruti Baleno. BHPian heavyfoot recently shared this with other enthusiasts: ...

To celebrate HOT ROD's 75th anniversary, we teamed up with CASTROL GTX to bring you some of the stories that exemplify the core of what HOT ROD is and reflect the brand's influence on America's car ...

NO ARM DAY WORKOUT is complete without a solid biceps pump. The big arm muscles are one of the most popular points of focus for mass-obsessed gym bros, and for good reason. The biceps take up a prime ...

The dual-disc clutch—often called a twin-disc or multi-disc clutch—is designed to increase holding power over an OE-style single-disc clutch. Not to be confused with a dual-clutch transmission (DCT), ...

The fun, excitement, and competitive juices that flow during track days in a well-built car like this 1995 Honda Civic hatchback are entirely addictive. This, if you don't know firsthand, has at least ...

In early 2014, Srikanth Thirumalai met with Amazon CEO Jeff Bezos. Thirumalai, a computer scientist who’d left IBM in 2005 to head Amazon’s recommendations team, had come to propose a sweeping new ...