Interesting work. One question, if I may - I understand 3D printing is getting increasingly affordable and can be used to make objects of almost any shape or form. However, I'm not really up to date as far as the materials suitable for 3D printing techniques.

Some years ago, when the technology was still in its infancy more or less, I remember that most 3D printers could only work with pretty brittle plastics with very little in the way of structural strength. The finish also tended to be pretty rough. Is it now possible to print directly in ABS? Or something stronger still, maybe reinforced with carbon fiber or the like?

You seem pretty knowledgeable about this stuff so I'd really appreciate some hands on feedback, maybe some basic explanation as how this stuff works in practice. How long does it take to make say, one of those anchor points? And what about the costs involved (other than getting your own 3D printer in the first place)?