Sampler

This is a piece I'm really proud of--even though it's not pretty, or something I can sell.  For a while now, I've been working on these tube pieces, and gradually finding what works and what doesn't.  The trouble is, I often try various ways to, for example, make a smooth curve, till I get what I want.  But some of the ones I didn't want might be a structure that's useful for something else--except that I've torn it out and after a while I can't remember how I did it.  So this is a sort of sampler.  In it I have several ways to make a 60, 120, and (most importantly) 90 degree turn.  The hardest was to make a corner, like you'd have if you were making an open cube.  The inside curve was easy, the the outside curve would either have a big knob on it, or be too flat and pull the inside out of its 90 degree-ness.  Anyway, I learned an enormous amount, and have generated lots of ideas for future pieces.