This week on Maker Update, an update for Circuit Python, Adafruit IO Plus, casting metal in Kinetic sand, a 3D printed tape measure tool, and reusing vintage voltmeters. This week’s Cool Tool is a 12v SLA battery.
A cool tool can be any book, gadget, software, video, map, hardware, material, or website that is tried and true. All reviews on this site are written by readers who have actually used the tool and others like it. Items can be either old or new as long as they are wonderful. We post things we like and ignore the rest. Suggestions for tools much better than what is recommended here are always wanted.