Welcome to the forum, Bobby.
My question back to you is , why would you want to make one?
There are so many reasonably priced jigs on the market and you have not show in your profile or introduction what tools and experience you have to complete the task in a satisfactory manner.
I don't mind if other members disagree with my comments.
I don't profess to know everything, and I may learn something new.
"Never attribute to malice that which is adequately explained by stupidity."