Josh On Design

TinkerCad is a free web based CAD program. It runs entirely in the browser using WebGL, so you’ll probably want to use it with Chrome (I think Safari may work in Yosemite+). TinkerCad is meant for novice CAD users. So novice that you can know absolutely nothing about CAD and be able to make something after five minutes of their built in learning quests (tutorials). Then you an save your creation to their cloud or download it for 3D printing.