Cliff, please don't be put off by the things we've posted about the electrical. It was done with the best intentions. Your new shop looks great & I'm looking forward to seeing more about it as you make progress. Are you going to have to share the space with cars? My shop is a 2 car garage that also houses 2 cars, but at lease my wife's car is a Smart so it only takes up a small corner. It's a pain having to plan around the cars, but the space is sure nice to have.
Cindy, I had the exact same issue last year. I have the 16-42 and mine did the exact same thing. I moved the GFCI after the lathe in the outlet chain. Inspector was fine with it. Your mileage may vary, too much protecting everyone from everything. Glad you got your lathe spinning, enjoy your first project.