The stem is made out of 6 different parts of (Sipo) mahogany to make a strong almost 90º curve. The transom knee is made out of two parts of mahogany glued together with epoxy.
Photo of drawing with permision from François Vivier.
Left are the parts of the stem and most to the right you see the transom knee.
We used some small blocks screwed on the workbench to get the right shape.
And yes, using lots of clamps.
Here you see the stem in place, fitting in the notch of the chipwood mould (station 9). It is mounted with a metal bracket on the station base as well.
We used the stem as a mould to laminate the false stem ( 13 layers) which will be screwed down after planking. If the planking is attached you will not be able to use glue clamps. That's why we made it in advance and put it up the wall for later use.
We made the transom out of solid mahogany and would like to keep it visible using a transparent coating when the boat will be painted. We used the Lamello machine to attach the different plankings and while bonding we tried to keep it flat by clamping some wooden beams over it, as you can see in the pictures. Down the workbench, we screwed two small planks and placed the mahogany planks in-between and then used pegs to tighten the planks together.
Using the Lamello machine.
Copying the transom drawing 1:1 with carbon paper.
Transom drawing on wood.
Making a bevel with a chisel.
A notch for the false keel.
Using a strip of wood to draw
a nice curve.