Hydroelectric dams are usually major infrastructure projects that costs tens of millions of dollars to construct. But they don’t have to be — you can build your own at home, …read more (https://hackaday.com/2024/01/27/a-hydroelectric-dam-built-out-of-lego/)

In Praise of “Simple” Projects
https://hackaday.com/2024/01/27/in-praise-of-simple-projects/

When I start off on a “simple” project, experience shows that it’s got about a 10% chance of actually remaining simple. Sometimes it’s because Plan A never works out the …read more (https://hackaday.com/2024/01/27/in-praise-of-simple-projects/)

A General-Purpose PID Controller
https://hackaday.com/2024/01/27/a-general-purpose-pid-controller/

For those new to fields like robotics or aerospace, it can seem at first glance that a problem like moving a robot arm or flying an RC airplane might be …read more (https://hackaday.com/2024/01/27/a-general-purpose-pid-controller/)

A Look at 3D Printed Professional LED Signage
https://hackaday.com/2024/01/27/a-look-at-3d-printed-professional-led-signage/

Customer perception is everything when you’re running a business, particularly in retail. High-quality signage can go a long way into creating a good impression in this respect. [king process] decided …read more (https://hackaday.com/2024/01/27/a-look-at-3d-printed-professional-led-signage/)

Ground-Effect Vehicle to Carry Passengers Around Hawaii
https://hackaday.com/2024/01/27/ground-effect-vehicle-to-carry-passengers-around-hawaii/

Although Hawaii used to have a ferry service to access the various islands in the archipelago, due to environmental and political issues, air travel is now the only way to …read more (https://hackaday.com/2024/01/27/ground-effect-vehicle-to-carry-passengers-around-hawaii/)

Harvesting Electricity From High-Voltage Transmission Lines Using Fences
https://hackaday.com/2024/01/27/harvesting-electricity-from-high-voltage-transmission-lines-using-fences/

When you have a bunch of 230 kV transmission lines running over your property, why not use them for some scientific experiments? This is where the [Double M Innovations] YouTube …read more (https://hackaday.com/2024/01/27/harvesting-electricity-from-high-voltage-transmission-lines-using-fences/)

Hotshot 3D Printed Hovercraft is Devastatingly Fast
https://hackaday.com/2024/01/27/hotshot-3d-printed-hovercraft-is-devastatingly-fast/

These days, it’s pretty cheap and easy to build your own little RC hovercraft. [ValRC] demonstrates just that with a hovercraft build that is surprisingly nimble, and fast to boot. …read more (https://hackaday.com/2024/01/27/hotshot-3d-printed-hovercraft-is-devastatingly-fast/)

No Dish? Try a Portable Weave Helix Antenna
https://hackaday.com/2024/01/28/no-dish-try-a-portable-weave-helix-antenna/