Tinkercad is like the hamburger helper of 3D design. You hate to admit you use it, and you know you should put in more effort, but — darn it — it’s easy, and it tastes pretty good.

Tinkercad offers a free and powerful way to work with computer-aided design, or CAD, for students of a wide range of ages.

Fort Bend County Libraries offers free classes on the use of its 3D printers every month. Learn about free websites that can be used to find 3D files that are ...