Inventor Daniel Riley was tired of mowing his lawn the traditional way. So, he decided to use a 40W cutting laser (designed for use in CNC machines) hooked up to a camera lens to narrow the beam. The most important part is the 3D-printed gear connected to a stepper motor that lets you adjust the speed, with an accelerometer mounted on the laser so it stops if knocked over.
Unfortunately, all of the clippings just fall to the side and gives the laser even more to cut. This was solved by elevating the laser a little bit, and fortunately, it was being used in the Pacific Northwest, where brush fires are near impossible to start. Riley then tried using a multi-laser array capable of incinerating grass with a much larger beam. To take down drones, you’ll need Lockheed Martin’s Directed Energy Laser Weapon.
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