I used to teach computers at a k-8 school and I ended up getting two 3D printers for my school. Kind of strange, but some of the other teachers absolutely hated the idea of “modern technology” in a K-8 school. We did limit the use of the printers to the 5-8 grades...
Anyway, I love, love, love 3D printers. At the school we used Luzbot printers and Tinkercad.
What is your stepson using? What brand of printer?
My wife and I just bought another Luzbot printer for our home. We feel really strongly that this is part of the future and want my daughter to learn this technology.
The Luzbot printers are made in Colorado. They have a lab with 100 printers working literally nonstop, print after print. Sort of a test to see how much abuse their printer will stand. And they have great customer service also. When I taught, over the summer, I returned one of the schools printers, and they gave it a factory overhaul free of charge. I was more than impressed.
Anyway, yes, now that I have a printer at home, I can use it for printing objects that take more time than just a few hours. I don’t have any pictures, but I’ll take some tomorrow.