A participant creates digital 3D models using Autodesk Tinkercad in the Two for the Crew Challenge at a pop-up makerspace held by Future Engineers, with support from NASA and The American Society of Mechanical Engineers (ASME), at the Steven F. Udvar-Hazy Center, Thursday, September 21, 2017 in Chantilly, Virginia. Participants had the opportunity to create digital 3D models and watch objects being printed with Makerbot 3D printers. Photo Credit: (NASA/Aubrey Gemignani)