This is great! I have been interested in 3D printing for a while, but it has always been too expensive. Hopefully soon I will be able to afford one.
There are sub-$500 3D printers now.
There is a guy on line who sells parts for a home build 3-D printer.....and the software to build another,
examples here: https://www.youtube.com/watch?v=xZL0A0IMFVY
and the do it yourself printer here:
https://www.youtube.com/watch?v=ua2QKV8V234
looks like this: