DRF 232January 10, 2018/in DRF - Drafting Open 2018 Spring MW MAIN /by wpmaster232 DRF 232 COMPUTER AIDED DRAFTING II (2-3 CR.) Teaches advanced operation in computer-aided drafting. Prerequisite DRF 231. Lecture 1-2 hours. Laboratory 2-3 hours. Total 3-5 hours per week.