Snap Linkage Bars, Math Models

cults3d

Snap Linkage Bars I'm a huge fan of linkage structures - they're ridiculously simple to build but utterly captivating when it comes to math or mechanics. Every kid should have some hands-on experience with linkages before diving into abstract geometry, in my opinion. These structures offer countless opportunities for kids to explore the mathematics behind geometry and movement. With 3D design becoming increasingly accessible and flexible, I've designed these pieces specifically with K-12 teachers and students in mind. They're a breeze to assemble or disassemble, making them perfect for open-ended explorations. The center-to-center distance is a generous 40mm. There are two types of links or bars and four different types of pins, giving you a plethora of construction options. Whenever you need to secure a point (like with a nail about 3.5mm in diameter), use a hollow pin. If you're connecting three bars, you'll want to use a three-layer pin. Sometimes, you might need a spacer to align the bars in space. The possibilities are endless - print out a bunch and give them to your kids! You could even insert a regular pencil into the handle ring or a ballpoint pen (diameter less than 3.5mm) into a hollow pin and play with drawing! Warning: As always, take some time to educate young children on why they shouldn't put small parts in their mouth. Have fun making connections! References: https://en.wikipedia.org/wiki/Linkage_(mechanical) Cundy, H. M., & Rollett, A. P. (1961). Mathematical models (2nd ed.). London, UK: Oxford University Press