




  1. dr says:

    I was pretty excited about this until I saw he was making the joints completely from scratch. Yikes. I’m pretty sure I’ve seen those double ball-and-socket things somewhere else, pre-made.

    1. Sam poop says:

      Those remind me of the ball-link control linkages you see in model airplanes. There is a really clever use for the ball-screw in a safety-breakaway hold down for cowlings on remote control boats using some O-rings attached with landing gear straps. The O-ring stretches over the ball-screw and is secure enough until a crash when it pops off preventing any unnecessary damage.

    2. Kieran Taylor says:

      Those joints are used on “third hands”, those little stand mounted crocodile clips that are used to hold stuff when soldering.

  2. ICNyght says:

    I can’t figure out how to actually view the artical Help please