History Facts & Stories on Instagram: "In 1939, inventor William E. Urschel created the world’s first 3 D printed building behind a small warehouse in Valparaiso, Indiana. The experimental structure was produced using a custom built mechanical system that continuously extruded layers of concrete to form walls directly on site, reducing the need for traditional formwork and manual labor. The following year he would file a series of patents for a Wall Building Machine, describing a method for auto

Max Imagination on Instagram: "Comment "ESP-DIVE" for the sub's tutorial 🤿 The ESP-DIVE is a DIY ESP32 RC Submarine you can build to explore the underwater world in first-person view. Thanks to @adskfusion with the CAD software that made 3D modeling this project possible! #rcsubmarine #rov #rover #3ddesign #3dmodeling #autodeskad"