How much does an experienced computer cad (engineering or architecture) drafter get pay on average full-time? ?

depending on your location. Usually, larger cities pay more with a few exceptions. You can figure someone who graduated from a technical school (2 yr program) who can perform basic CAD functions but have not building technical knowledge to pay around $12-15/hr. It goes up from there if you are able to do 3-D modeling. The pay rate goes up exponentially when you have an understanding of codes, construction emblies, and etc.