I manage a shop that refurbishes and customizes industrial equipment and I manage our full time in house machine shop. I also do all the cad design and engineering for our projects. I design all our new manufacture machine as well.
I designed and built gravel yard equipment like conveyors, rock crushers, and screening plants. When I wasn't working on making prints I was in the machine shop or in assembly welding and bolting the machines together.
I design internal structures for submarines.