I'm not too familiar with 3D printer manufacturers, but I have found a list of American-Based 3D printer manucaturers. There are a few on there that are All-American. I hope this helps, and I wish you the best of luck!

http://www.3dprinterprices.net/made-in-the-usa-american-companies-behind-the-rise-of-3d-printers/

I'm not too familiar with 3D printer manufacturers, but I have found a list of America-Based 3D printer manucaturers. There are a few on there that are All-American. I hope this helps, and I wish you the best of luck!

http://www.3dprinterprices.net/made-in-the-usa-american-companies-behind-the-rise-of-3d-printers/