Ivan Miranda's Sand Drawing Robot, Take 2

After making his first beach-bot in 2018, the YouTuber is back at it with a much faster 50-servo version.

Jeremy S. Cook
3 months agoArt / Robotics

Drawing messages on the sand is perhaps as old as history itself, but Ivan Miranda has come up with a tracked vehicle to automate this ephemeral art form. In fact, what’s seen in the video below is his second take on a sand drawing robot, boasting a much faster print speed than his 2018 version with the caveat that it prints with less contrast.

The new device features 50 SG90 micro servos spread out across a piece of square tubing, controlled by a total of three Arduino Mega boards. These intermittently extend as they’re pulled forward by a tread system on each side to produce words. The build is so long that he has to actually extend his workbench to get it to fit, and at a weight of 13.5 kilograms (around 30 pounds) without the battery, he created a custom trailer assembly to walk it to the beach.

For his initial test at around the 11:00 mark, he apparently tries to spell out “MAKE SOMETHING,” but doesn’t have things spaced out enough. As he forgot his programming cable, this meant a trip back to the shop. He then makes an attempt at text output, including printing the word “SPACERS!!!,” which seems appropriate after his problem on the first try.

It’s a certainly a fun project, and seeing the servos extend down to carve tiny trenches in the sand is especially neat.

Jeremy S. Cook
Engineer, maker of random contraptions, love learning about tech. Write for various publications, including Hackster!
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