February 24, 2009

Deckridges and Stem Plates

Full kayak, view from stern
Full kayak, view from bow
In the pictures, the picture on the left is the full view of the kayak from the stern; the picture on the right is the full view from the bow. It really looks like a boat!!!

The first thing I did this weekend was to establish the keel line. The lowest point on the keel is at cross section 2. I asked a silly question (about how to draw the keel down to the lowest point) on the Kayak Builders Bulletin Board and got a very pleasant "RTFM" response from Tom. So, I've duck taped the kayak into position I put paper between the wood and the duck tape to try and keep some of the sticky-gooeyness from the tape from leaving a residue on the wood.

Drawing bow stem
It took me 2 tries on paper and the assistance of a Princess Glue Stick to get the bow stem worked out right - but, I got there. I mostly followed Tom's directions for drawing the stem plates. I cut my gunwales to 33" from the first cross section and the chines to 24". In hindsight, I wish I had left the gunwales a little longer. The stern was 25 1/2" for the gunwales and 19" for the chines.

Cutting stem plates reusing left-over wood
For the stem plates themselves, I cut them out of the interior pieces from the cross sections. Paige again helped cut with the jig saw. Because the 1/2" drywall is thinner than the 3/4" keel - I trimmed 3.5mm off of either side of the keel tapered back by about an inch. In doing this, I accomplished my first kayak building injury -- I used the bonsai saw to cut these pieces off and somehow nicked the back of my hand. It sounds worse than it is, but it was a first.

Stern deckridge
The other thing I worked on this weekend was the cutting the deckridges. I was a bit apprehensive cutting the notch in the cedar - mostly I wasn't sure how to approach it and certain that I was going to miss-cut and hack the notch off. To determine what to cut, I set the deckridge into the notched out area on the cross section. I drew along the side and across the top of the deckridge. This showed me what to keep. I flipped the board over and drew clean/straight lines. I was spastic enough to put Xs in the part that I was cutting out. As for cutting too much, I used the japanese pull saw and tried to be as careful and slow as possible. It actually worked out spectacularly well.

I only ran my deckridges between cross sections 1 & 2 and between 3 & 4. This meant I didn't have any supports between cross section 1 and the bow or between cross section 4 and the stern. I've been keeping most of the bits of wood that I've cut off. I grabbed a couple of short pieces of the gunwales and chines and decided to fashion cross-supports in the bow and stern areas. These were actually pretty fun to figure out how to cut because they had to follow the gunwales inward tilts.


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Sea Flea 11 Project Costs

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