Collaborate Disseminate
Without any sort of restrictions on designs for trebuchets, these medieval siege weapons are known to send 90 kilogram projectiles over 300 meters. The egg-launching trebuchet contest that [AndysMachines] is …read more Continue reading Trebuchet Sends Eggs Flying
It’s the season to be surrounded by greeting cards of all shapes and sizes from friends old and new. News of their families and achievements, reminders that they exist, and a pile of cards to deal with sometime in January. Wouldn’t it be great if you could send something with …read more
Continue reading Catapult Your Best Wishes With This 3D-Printable Card
Bing Crosby famously sang “Just let a smile be your umbrella.” George Carlin, though, said, “Let a smile be your umbrella, and you’ll end up with a face full of rain.” [BebBrabyn] probably agrees more with the former and used a Raspberry Pi with Open CV to detect a smile, a feature some digital cameras have had for a long time. This project however doesn’t take a snapshot. It launches a marshmallow using a motor-driven catapult. We wondered if he originally tried lemon drops until too many people failed to catch them properly.
This wouldn’t be a bad project for …read more
Continue reading Reinforce Happy Faces With Marshmallows And Computer Vision
What we know about SpinLaunch, a company created in secret four years ago. Continue reading This Company Wants to Catapult Rockets into Space
[Vije Miller]’s Arduino Licorice Launcher is based on the simple and logical premise that one must always have a voice-activated Red Vines catapult in the workshop. When he calls out to the robot, it turns to aim at him and flings a piece of licorice at his head.
The chassis is CNCed out of quarter-inch MDF and the spring-loaded catapult arm is managed by two servos, one to tension the arm and one to secure it until it’s triggered. Third and fourth servos aim the catapult and dispense another piece of licorice from the magazine. His robot adapts a radio …read more
Continue reading Hackaday Prize Entry: Room-Tracking Red Vines Flinger