TECH

Spraychalk Anoints your Sidewalks with Precision Sandprints

Giant lines in the sand are incredibly useful for pleasing the gods and hailing overpassing extraterrestrials. Beautiful, unwarranted spray-painted sidewalks might land you in detention with local law enforcement. Of course, why not have both? With the Sand-and-Spraychalk machine, you can!The Sand-and-Spraychalk machine is a two-axis CNC machine that can be used to spray or spray sand or spray paint. As with any self-respecting power tool these days, the Spraychalk is driven by a rechargeable Bosch 18 V battery pack. As far as safety is concerned, leveraging an already-product-proven solution instead of cooking our lawns with questionable LiPos is downright clever.Elegance is in simplicity, and the Spraychalk is no exception. The entire build is a collection of off-the-shelf parts mixed with a few laser cut plates and a custom nozzle made of POM (Acetal). Precise spraying might sound like a hard problem, but it's executed here with just a motor-driven cam and a couple levers. Finally, adapting to the 18 V battery pack may seem like a form-factor nightmare, but our creator, [kallibaba], managed to pull it off with just a few laser-cut plates.The Spraychalk rightfully sits next to its previously mentioned cousins ​​that have graced these pages before. The next time we're wondering, we just wonder where you look!



Joshua Vasquez-HD