What's a couple years when you are that old.

Electric Discharge Machines (EDM) have been around quite a while.
I used one in high school and several others in some shops.

http://www.xactedm.com/edm-capabilities/how-edm-works/

Don

1967 GMC 9500 Fire Ladder Truck
"The Flag Pole"
In the Stovebolt Gallery
1946 2-Ton grain truck
1946 3/4-ton pickup,
1953 1-ton pickup
1957 1-ton flatbed dually,
1954 Pontiac Straight Eight
Of all the things I've lost in my life, I miss my mind the most!