One Stepper Plus a Whole Bunch of Magnets Equals a Unique Seven-Segment Display

Sometimes the cost of simplicity is extra complexity. It seems counterintuitive, but it seems to be true. And this single-motor mechanical seven-segment display seems to be a perfect example of …read more Continue reading One Stepper Plus a Whole Bunch of Magnets Equals a Unique Seven-Segment Display

Street-Legalize Your Ebike With A Magnet

Getting into e-biking is a great hobby. It can get people on bikes who might otherwise not be physically able to ride, it can speed up commute times, and it can even make hauling lots of stuff possible and easy, …read more

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Simple Sensor Makes Filament Measurements a Snap

Just how tight are the manufacturing tolerances of modern FDM printer filament. Inquiring minds want to know, and when such minds are attached to handy fellows like [Thomas Sanladerer], you end up with something like this home-brew filament measurement rig …read more

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3D-Printed Flight Controls Use Magnets for Enhanced Flight Simulator 2020 Experience

We have seen quite a few DIY joystick designs that use Hall effect sensors, but [Akaki]’s controller designs (YouTube video, embedded below) really make the most of 3D printing to avoid the need for any other type of fabrication. He’s been busy using them to enhance his Microsoft Flight Simulator …read more

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TMD-1 Makes Turing Machine Concepts Easy to Understand

For something that has been around since the 1930s and is so foundational to computer science, you’d think that the Turing machine, an abstraction for mechanical computation, would be easily understood. Making the abstract concepts easy to understand is what this Turning machine demonstrator aims to do.

The TMD-1 is …read more

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Laundry Monitor Won’t Generate Static with Roommates

Laundry. It’s one of life’s inescapable cycles, but at least we have machines now. The downside of this innovation is that since we no longer monitor every step — the rock-beating, the river-rinsing, the line-hanging and -retrieving — the pain of laundry has evolved into the monotony of monitoring the …read more

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Quieting Down A Bandoneon Accordian With MIDI

The bandoneon, known as the tango accordion, is quite a loud instrument to practice within the confines of an apartment, and could possibly lead to some neighborly disputes. [HLB] enjoyed playing his but wanted a way to turn down the volume a bit without, in consideration to his neighbors. Instead …read more

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