We started this project by buying a pre-made hatch from Ebay. For this project we wanted a more
professional water channel than the square one that we implemented for the back
deck hatch. In order to do this, we used
the hatch to create a router template in a sheet of ¼” flat birch plywood.
The wooden router template is shown below.
The router template was then used with a half round bit to
cut the initial channel in the coosa top piece of the locker.
The channel was cut such that the edge of the hatch would
fit down into the depression we created.
We then built up the height of the channel by adding material on both
sides of it combined with hours of hand sanding, fitting and shaping.
Then we added the initial sides and then just kept slowly
adding layers of glass to the sides of the channel in order to reduce the gap
between the hatch and the top to well under 1/4”.
We then took the unit to the boat to try to figure out the
exact end height that we would go with.
For various reasons it was decided to make the unit taller by adding a
base to what had been fabricated at home.
The base (and the whole unit except the hatch cover) was fabricated
from Coosa.
It was cold in Virginia at
the time so we created a small curing tent fed by a propane heater. We put our parts in here each time we
needed something like glass or gel coat to cure quickly (or at all…).