Technology

CNC Milling a Spherical Ice Mold

CNC Milling a Spherical Ice Mold

We have covered these spherical ice molds before. I have used one, myself, and they work pretty well. A chunk of ice is sandwiched between two halves of a metal mold, and fast conduction of heat away from the ice, through the metal, causes it to melt wherever the mold makes contact. The mold halves slide on rods to maintain their alignment, and gravity does the rest. With a mold that starts at room temperature, it only takes a few minutes to make a nice shiny ice sphere.

iPhone Cord-On-Board Case

iPhone Cord-On-Board Case

Don’t you just hate it when your smartphone runs out of juice? If you’re like me, you’re probably not far from an open USB port, so you’re set if you’re the type that always carries around a spare cord. But that rarely happens, right? Not if makers Lucky, Nate, and Mark have anything to do about it. Their Cord-On-Board case for the iPhone 4 takes care of the need to always carry around a cord because it keeps one handy inside its durable PVC shell.