LEGO-firing turret targets tender tootsies


LEGO-firing turret targets tender tootsies

Arduino WorkforceAugust 4th, 2022

Stepping on LEGO bricks is a meme for a motive: it actually @#$%&! hurts. LEGO brick design is ingenious, however the engineers didn’t take into account the ramifications of their minimalist building system. We’ve seen individuals do loopy issues for Web factors, equivalent to stroll throughout a mattress of LEGO like they’re scorching coals — or in Adam Beedle’s case, construct a LEGO-firing turret particularly to shoot plastic bricks below an individual’s ft.

This mission consists of two distinct sub-systems: the mechanical turret that launches the LEGO bricks and the concentrating on system that acknowledges ft. For the previous, Beedle devised a intelligent rubber band-based mechanism that cranks into place with a rack and pinion. An Arduino Uno rotates the pinion with a continuous-rotation servo motor. The pinion gear has a number of enamel lacking, so it releases the rubber bands and flings the loaded LEGO brick after a number of rotations. One other brick then drops down from a hopper and the cycle repeats, leading to automated firing.

Beedle 3D-printed the entire turret’s components and used a second turret motor to supply rotation. The turret additionally has a webcam mount, which is how the concentrating on system finds ft. Beedle doesn’t present a lot element on this method, however we assume that he used one thing like OpenCV working on a PC to detect ft. The PC would then ship a command to the Arduino via the serial port telling it to rotate the turret within the correct course till the detected foot is centered within the video feed. When it will get shut, it begins spinning the pinion to shoot LEGO bricks.

From what we are able to see within the video, evidently the turret labored as supposed. That’s to say that Beedle efficiently constructed one thing that will pressure him to step on painful LEGO bricks.

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