AutoCAD offers a free student version that can be downloaded directly from their website, providing a three-year subscription upon registration. While AutoCAD LT is a scaled-down version suitable for 2D designs, it lacks the 3D functionality required for some classes. A user found a site selling a one-year student version for $160, but many participants in the discussion emphasize the importance of avoiding pirated software. There is a sentiment that software companies should provide free access to students, as it fosters future purchases of full licenses. Overall, students are encouraged to explore legitimate channels for obtaining AutoCAD software.