SUP Plug forming: Step #2

 After the bow is pulled together, the hull bottom naturally forms a nice gentle v shape.
So now after the shape is secured, we have the heights or thickness of the board established.  The next thing to do is to set the sheer line or top edge of the entire deck surface.
I do this by ripping some 1/4 inch strips of wood (poplar).  I then mark out from the hull bottom 1 inch around the edge of the hull.

I do taper in to "0" at the bow and stern.  Next I shoot in the poplar strips to these markings.  This edge gives us something to fair to and hopefully keep the shape of the sides fair.

Next I fill in the void with foam.  I've used bondo and wood before, but foam is fast and it is only a base for further fairing.

Here you can see the poplar strip at the bottom edge of the sanded foam.

A couple of passes with great stuff, let it firm up then sand it down.

These two photos show the foam before and after disk sanding to the chine and shear line.

 Next I mark the center line with a string to make sure we are straight.  On this board I wanted a detail at the centerline to provide a little thickness for strength.  It will not be a skeg, just a slight rounded v.  The internal deck supports made of carbon fiber tube will rest on this centerline.
To form this, first we start with a furring strip.

The bow will have a pronounced v section and we form this by adding a vertical piece of wood. 

After the epoxy holding it sets, we mark a nice fair transition  and plane it down.

Then we sand it below the eventual
final surface.

Here foam is shot in to conserve
fairing compound.

Next we will start adding many passes of
fairing compound.