My son will be turning 14 in February of 2017, and I thought I'd share some progress on his latest tool build. He is very interested in Bladesmithing and making his own damascus. I've been supervising, but letting him do all his own work to build the equipment he needs. He succesfully built his own gas fired forge last year as a 13 yr old and now he's making a 2"x72" belt grinder, called a Bader Grinder. We're almost done, just need to align the pulleys, tie everything down and paint it.