Collaborate Disseminate
Pantographs were once used as simple mechanical devices for a range of tasks, including duplicating simple line drawings. [Tim] decided to make a modern electronic version that spits out G-Code …read more Continue reading Tracing In 2D and 3D With Hall Effect Sensors
Whether it’s a 3D printed robot chassis or a stained glass window, looking at a completed object and trying to understand how it was designed and put together can be …read more Continue reading New Video Series: Designing with Complex Geometry
Calculating three-dimensional position from two-dimensional projections are literal textbook examples in geometry, but those examples are the “assume a spherical cow” type of simplifications. Applicable only in an ideal world where the projections are made with mathematically perfect cameras at precisely known locations with infinite resolution. Making things work in …read more
Continue reading Tracking Drone Flight Path Via Video, Using Cameras We Can Get
You may be familiar with origami, the Japanese art of paper folding, but chances are you haven’t come across smocking. This technique refers to the way fabric can be bunched by stitches, often made in a grid-like pattern to create more organized designs. Often, smocking is done with soft fabrics, …read more
Continue reading Tessellations and Modular Origami From Fabric and Paper
You may have seen Simon Beck’s work a few years back. The snow artist, known for creating large-scale works of art with nothing but snowshoes, has been creating geometrically inspired fractals and mathematical forms for years. An orienteer and map-maker by day, he typically plans out his works in advance …read more
Continue reading This Artist Drags His Feet Across Sand and Snow
It seems that tensegrity structures are trending online, possibly due to the seemingly impossible nature of their construction. The strings appear to levitate without any sound reason, but if you bend them just the right way they’ll succumb to gravity.
The clue is in the name. Tensegrity is a pormanteau …read more
The “scutoid” is a newly uncovered geometrical creation, and the secret to why our organs are shaped the way they are. Continue reading Researchers Have Discovered a New Shape, and It’s Inside Your Skin
Via the scientific cogitations of Randall Munroe at XKCD.
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Continue reading XKCD, The End Of The Rainbow
[Scott Cramer] is a retired professional woodworker who specializes in geometric art made from beautifully joined wood. In this project he’s carving four interlocked cloverleaf rings from a block of basswood. First he made a series of cuts to turn the block into a cuboctahedron, a geometric solid comprising six squares and eight triangles. Then he drew on the basic lines of the rings on the wood and went to work with a chisel, smoothing and separating the rings and carving out the interior. You can see more shots of the project on his Facebook post, which is included after …read more
It is pretty easy to go to a big box store and get a digital speedometer for your bike. Not only is that no fun, but the little digital display isn’t going to win you any hacker cred. [AlexGyver] has the answer. Using an Arduino and a servo he built a classic needle speedometer for his bike. It also has a digital display and uses a hall effect sensor to pick up the wheel speed. You can see a video of the project below.
[Alex] talks about the geometry involved, in case your high school math is well into your …read more
