Chester County Library on Instagram: "This year, our community came together to build The Arctos — an open‑source, 6‑axis robotic arm capable of lifting about 1 kilogram. Every part of this machine is either 3D‑printed or made from standard off‑the‑shelf components, making it easy to maintain, repair, and endlessly tinker with. We ordered the kit in March, kicked off the build in April, and by July, we were hosting a hands‑on series for students in grades 6–12. Participants helped complete the a