Leonardo da Vinci wasn’t just the guy behind the Mona Lisa—he was the OG mechanical mastermind. In this post, we dig into six of his most surprising and underrated inventions, including a 15th-century CVT, a hand-cranked blender, a scuba suit, and even an early corkscrew (priorities, right?).

These wild concepts show just how far ahead of his time he was—and why we at MetMo love over-engineering the everyday. If you’re into mechanical creativity, historical oddities, or just enjoy breaking things to see how they work, you’ll feel right at home.

Because even 500 years later, a great idea never rusts.

At MetMo, we're always chasing the next big idea—and after Multi Drive, we went into overdrive. With too many concepts to fit into Kickstarter alone, we’re evolving how we launch: bringing smaller, limited-edition projects like the MetMo Piston straight to our store. No springs, no magnets—just pure pneumatic precision you can feel. Inspired by the infamous “Danger Knife,” Piston is a palm-sized engineering marvel that’s silent, satisfying, and seriously fun. This shift lets us move faster, stay ahead of copycats, and keep delivering the clever, quality designs you love—without compromising on current campaigns.

Ready to play with air-powered perfection?

Fidgeting isn’t just a modern-day habit—it’s a centuries-old craft. In this deep dive into the hands-on history of fidget toys, we explore how these tactile tools evolved from ancient curiosities into precision-engineered marvels. From Baoding balls to ball bearings, we uncover the ingenious designs that keep fingers busy and minds focused. At MetMo, we celebrate the fusion of engineering and play—because sometimes, the best ideas come when your hands are in motion.

Discover the art of knurling in MetMo's latest blog post, Getting Down and Knurley. Learn how this precision engineering technique enhances tool grip, functionality, and aesthetic appeal. Explore different knurl patterns, suitable materials, and the machinery behind the process. At MetMo, we blend craftsmanship with innovation to create tools that stand out in both design and performance.

Whether you're a DIY enthusiast, a seasoned machinist, or just someone who appreciates well-made tools, understanding the different types of vises can seriously elevate your workshop game. From the classic bench vise to the precision of a machine vise, each type is engineered for specific tasks — and knowing the right one to use can save you time, frustration, and even improve the quality of your work. In this guide, we break down 10 essential vise types, how they work, and what makes each one a must-have (or not) depending on your project.

When it comes to engineering excellence, the tools you carry are only part of the story — how you carry them matters too. In An Ultimate Case, we take you behind the scenes of the design and development of the Multi Drive Expansion Kit: a storage solution as precisely crafted as the tool it protects. From material choices to the satisfying click of the magnetic closure, every detail was obsessively refined to balance durability, usability, and style. This isn't just a case — it's an experience built for creators who care as much about their gear as the projects they bring to life.

Your makerspace is more than just a workbench—it's your creative command center. Whether you're soldering circuits, carving wood, or prototyping your next big idea, the design of your space can make or break your workflow. In this post, we dive into six essential design principles that turn any workspace into a maketastic haven of productivity, inspiration, and efficiency. From layout logic to storage hacks, these tips will help you build a space that works as hard as you do.

Say hello to The Stubster—your palm-sized, micro-handle sidekick that squeezes into tight spaces where the regular Multi Drive can’t reach. It packs all the same handy features as its full-size sibling—bit-holding, secure grip, quick-swapping—all wrapped into a compact powerhouse.

But helical gears are great – to look at and to use. And you’ll find them in a lot of places. So let’s get our butts into gear and explore these smooth criminals of the engineering world.