Relief help needed Will Pay for your help

I have 9, 10" heads that I have to make 1 1/2" releifs for and I am having trouble with depth mapping them and getting them all ready for CNC work. I Use artcam but am still trying to get the hang of things. any help would be great. you can reach me here or msg me. also any advice on depth mapping for artcam to work with it better would help. thanks