Get your fiberglass pieces and lay
them in position. Dribble a small amount of glue on
the center of glass piece and squeegee from the inside
out. Again, work diagonally or you'll cause the cloth
to fray, which can get really messy when glue is part
of the equation.
Take your cores and wet
the spar slot with glue and a brush. Do the same to
the spar and root of the core where they join together.
Assemble the cores and spar, then give a little brush
of glue on the top and bottom of the spar slot. This
will help you if the spar is a little too short to reach
the skins.
Place the top of the core
on the top skin. This is where the skin gets closed
up and you start getting ready for the bag. Make sure
that the cores are placed properly on the skins-remembering
the overlap. Slip the cores into the beds, again, checking
that top is top and bottom is bottom. Slide the wax
paper dividers between the beds and skins and give the
cores a final line-up in the beds before taping it all
together with masking tape.