Corel historically offered 30-day trials. These allowed full use of features, including saving and printing, for a limited time.
To run CorelCAD 2017 on a Mac, your system should meet these legacy specs: CorelCAD 2017 Reviewer's Guide - CorelDRAW.com CorelCAD 2017 for Mac Free Download
Finding a "free" full version of CorelCAD 2017 is difficult because it was never released as freeware. Corel historically offered 30-day trials
If you download the installer without a serial key, the software typically runs in a restricted "Demo" mode where you can view files but cannot save, export, or print. including saving and printing
CorelCAD 2017 is a professional 2D drafting and 3D design software. It is optimized for macOS and uses the industry-standard file format.