I glued and nailed the transom today. I originally was going to use screws but decided to go with nails once I realized that I would have to go through the plywood and into the frame in order to get a better “bite” for the nails. Going through the frame wood and then into the plywood gave me only a ¼” depth on a 1” nail or screw and I only had a total thickness of 1-1/4” so anything longer than a 1” nail was out if the question.
Going through he plywood first poses its own minor problems. I have to align all the frame pieces using the outside edges exclusively so I will need to be careful about keeping the frame stable while I prepare it with pilot holes for the nails and keep them aligned with some temporary small nails like I used on the gussets.
I pilot drilled one section at a time, putting an alignment nail in every couple holes.
I glued and nailed the transom today. I originally was going to use screws but decided to go with nails once I realized that I would have to go through the plywood and into the frame in order to get a better “bite” for the nails. Going through the frame wood and then into the plywood gave me only a ¼” depth on a 1” nail or screw and I only had a total thickness of 1-1/4” so anything longer than a 1” nail was out if the question.
Going through he plywood first poses its own minor problems. I have to align all the frame pieces using the outside edges exclusively so I will need to be careful about keeping the frame stable while I prepare it with pilot holes for the nails and keep them aligned with some temporary small nails like I used on the gussets.
I pilot drilled one section at a time, putting an alignment nail in every couple holes.
That completed, it was time to mix a batch of Weldwood Resin Glue and apply it to the inside of the frames. It was very warm today so the thin layer would dry quickly and I had to quickly reassemble the plywood to the frame pieces and get at least a couple nails in each frame piece to prevent them from moving. I was a bit frantic but my hammer drove the nails home quickly.
The finished result looked great!
I spent the rest of the afternoon carefully laying out the cut lines for the stringers and the keel.
12 Foot Catboat
Follow me as I build a 12 foot catboat from plywood and pine. The boat was designed by Edson Schock in the 1940's. This is a project born of a desire to have another boat to sail here in Puerto Rico that will stand-up to the Trade winds. The sail plan will be changed to a gaff rigged sail. All the lumber is locally bought and pine will be substituted for oak, which is not readily available here. Marine plywood will be used.
Friday, May 29, 2009
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