Fusion 360 is a great, all-in-one parametric cad solution. Find out how to get started below.
Parametric CAD (Computer-aided Design) refers to things, sketches, objects, shapes, and or points having a parameter, dimension, or size. This is great for parts that fit together or things that rely on other sizes. What’s really useful is the ability to go back and edit the base sketches or sizes of objects at the beginning of a design and have it update everything after to suit.
Instructions to signup for an education license and installation can be found here.
Below is a set of slides with basic tips to get you started.
After reading them we recommend trying it out for yourself and do some of the introduction tutorials to get used to it. They can be found on this page here.