As this is an experiment I've discarded notions of clever construction and in an attempt to maintain momentum have gone for hi-grab/non-solvent/building glue of the no-sharp-pointy-metal-things-that-you-nail-wood-together-with type.

It's expensive stuff, but it may also rescue my bodyboard.

The next stage has to be traditional carpentry to hold the ends in position and support the pivots for the sector plates. I'm planning on a nut & bolt through washers glued to the sector plate for simplicity. Anyone got any advice?