Fusion Generator / Reactor?

[kresty]

I got a "bunch" of free 1/16" styrene.  (5 sheets 13" x 3' or so) - wondering if I can build some of the 1/8" parts from 1/16"?

Oh - and some of the circles look like they'd fit as whole circles.  Is it important that they get cut as halves? or was that just to reduce waste? (Too be clear, I'm thinking of some of the upper/bottom rings, not the 20 halves of the grill bits.)