This week on Maker Update: weaponized candy, a smart bot ball contraption, floating sine waves, and getting the most out of your digital caliper purchase.

Today I’m going to show off what you can do with a pair of dirt cheap digital calipers (Amazon link). These come in a plastic case. Mine even had an extra battery included. On the front here you have a power button, a zero button to zero out the measurement, and a toggle between inches and mm.

This week on Maker Update: an autonomous beach-roving art bot, Kickstarter wants your ideas, a project that makes kits for other projects, GUIs for Raspberry Pi, stipple ceramics, and I’ll show you why digital calipers are cool (and why you should buy them here: http://amzn.to/2ov1YJU).