John O’Brien is a maker, tinkerer, and father of two. He and his wife founded Revolution Makerspace in 2022. Website: revolutionmakerspace.com   For show notes and transcript visit: https://kk.org/cooltools/john-obrien-revolution-makerspace/   If you're enjoying the Cool Tools podcast, check out our paperback book Four Favorite Tools: Fantastic tools by 150 notable creators, available in both Color or B&W on Amazon: https://geni.us/fourfavoritetools