The terms "layers" and "blocks" are two basic but crucial foundation points to understand when working in the CAD world. We'll dive into the hows and whys of blocks and layers when it comes to drafting. In developing a better understanding of their importance, you'll gain valuable insights into fundamental concepts such as "defined," "purge," "redefine," and "source," which will in turn build your confidence when navigating through and designing in CAD.
