Thomas Burgess has spent much of his life trying to make the world a little more beautiful — and now, through 3D printing, a little easier for children with mobility challenges to navigate. Burgess is a vetted “MakeGood Maker,” meaning he has been approved by the MakeGood Foundation to build 3D-printed mobility wheelchairs for children with disabilities. “These wheelchairs are provided completely free to the families,” Burgess said. “We operate …