There is now a large variety of thermoplastic materials used in filament type 3D printing. There are two which I have used in my printer. The first is Acrylonitrile Butadiene Styrene (ABS). It is a good general use high impact resistant material. It has a fairly high melting temperature. It is the f...

Once you have your printer running up to snuff, all you want to do is keep it running. This is extremely addictive as the lazy way to make plastic things. Ha! If you are creating your own 3D master drawings, then I think that should count as a useful habit rather than a pure addiction. But I just sa...