Create a DIY perpetual calendar using this free watercolor printable! It’s easy to make with Mod Podge and a few other basic ...

Well, we’ve got a solution for you–a perpetual birthday calendar, and the best part? It’s absolutely free! Never miss another ...

At Hackaday, it is always clock time, and clock time is a great time to check in with [shiura], whose 3D Printed Perpetual Calendar Clock is now at Version 2. A 3D printed calendar clock ...