Thanks, Dave. Yes I used a ball end router bit in the mill to make the slots. I use HNC ( Human Numerical Control) machining! I cut one, record the numbers and make all the rest of the slots using those numbers  for stops! I have a table   with T slots for the vice that I made many years ago and it makes it so easy to set up a job like this !

Cheers, Jim ........................ Variety is the spice of life...............Learn something new every day