A Texas man bought a 3D printer to make toy dragons. Now he prints free wheelchairs for toddlers.
Luke Saintignan of Longview, Texas, uses two home 3D printers to build free mobility chairs for little kids. Volunteers like him have built 1,400 of them in 49 countries, and more than 1,000 families are waiting for one. Here’s how you can help, with or without a printer.


















