Here's what we end up with in this chapter. A mostly finished hull frame with a coat of linseed oil, a lot of finished lashings, and fewer sharp corners.
Chapter 1: Make the Deck, Keel, and Cockpits.
Chapter 2: Make Ribs
Chapter 3: Lash the Frame
Chapter 4: Carve outrigger and Break tools
Chapter 6: Morton's Oar
Chapter 7: Sew a Skin over the Hull Skeleton and Seal it.
Chapter 8: Keel and Rub Strips
Chapter 9: Dipaakak
Chapter 10: Independent Suspension
Chapter X: Maiden Voyage
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Step 1: Stem Lashings
I trimmed the end of each stringer to lay against the stem with my pullsaw and knife.
Then I drilled two holes above and below each one. I lashed around each pair of stringers with 7 or 8 turns of polyester twine. I shoved a loop of wire under the lashing and pulled the loose ends through to finish the lashing.
I wasn't planning to do anything at all to the ends of the stringers.
I was going to leave them hanging out in space and not lash down the tips.
It felt like they'd break before they bent enough to reach the stem.
But I tied them bent and went away for a month. When I came back they bent to the stem easily.
So went ahead and lashed them to the stem.
Don't agonize over this part of the boat. You'll see when we stretch the skin over the frame it won't even touch the stringers here. And if it does, this part of the boat is above the waterline most of the time anyway.
Step 2: Epoxy the Stem Lashings
I DID NOT fully soak any other lashings, because I want them to flex and be soft where the skin goes over them.
Step 3: Trim the Spikes Off
Step 4: Lock the Lashings With Epoxy
I didn't epoxy the outer part of the lashing so it wouldn't be hard under the skin.
I left most of the lashing soft so it could flex. I've seen fully soaked lashings break in wipeouts.
The epoxy stretches less than the fibers. that makes the lashing brittle.
That's a rule of composites. Use fibers that are less elastic than the resin. Otherwise the resin takes all the load and the fibers are mere filler, adding little strength.
These fibers are pre-stressed, which makes it okay, but if you have a stretchier resin to soak your lashings with, use that.
Step 5: Install Remaining Deck Beams
Otherwise water will pool under the deck and the boat will rot when it's parked upside down. And breed mosquitoes. And smell funky.
There were some lumps of hard glue under the deck from gluing on the gunwales. I carved them off where the beams would go so they'd lie flat and mate well.
I mixed some of that fast 5:1 epoxy. I painted it on the mating surfaces of beam and deck so it would soak in. Then I mixed white flour with the remaining epoxy til it was flowing slowly.
Some people say "like pancake batter". Some say "like peanut butter". I like mine just between those two. Epoxy soaks into wood very well. If your wood is thirsty the glue will wick away and you'll get a "starved joint". If you over-thicken your glue it gets even thicker once the wood starts drinking the epoxy out of it.
Step 6: Clamping the Beams in Place
When I ran out of long sticks I put boards across under the stringers to wedge sticks against.
The push sticks bulged the deck a bit, which is good. A "crowned deck" sheds water, and the arch makes it much stronger.
To see why, play with a strip of paper. If you form it into a partial tube it's a whole lot more structural than when it's flat.
Every time a glue-up is done, it's tempting to sit and watch it. Or call it a day and come back when the glue is hard for the big emotional payoff of taking the clamps off.
That's one reason boatbuilding takes a lot longer now than in the good old days.
I've heard this a number of times from ear-whiskered curmudgeons who came from the past.
People were a lot more skilled in the old days, because they mostly lived on farms and couldn't avoid working with their hands. Without epoxy tempting them with the mystique of totally encapsulated non-corrosive perfection, they'd just pound some boards together with nails, leaving big enough gaps to shove caulk into and call it a boat. There wasn't any step that called for waiting, except the final paint job.
Step 7: Round Off the Rough Corners
I learned about illegal invasions on my jackhammer headphones.
I also wore my good "comfo classic" respirator mask and good safety goggles. I was making a dust storm and I didn't want crap in my eyes and lungs. Wood comes from nature, but that doesn't mean you should huff the dust. Especially if you smoke. A healthy old furniture maker told me "every woodworker who smokes gets emphysema".
I didn't have a backing pad or spacers for the grinder, so I just stacked a couple of sanding disks on top of the grit wheel that came with the grinder.
See that edge-on view? Don't ever look at your grinder from that angle. It's like looking down the barrel of a gun. After a wheel breaks and smites you, your heirs will lobby for laws requiring guards on grinders.
Step 8: Epoxy the Deck. Linseed Everything Else.
Epoxy's impervious virtue has its hazards.
Solara came with some rub rails that had lasted 20 years or so. They'd had no finish on them but oil. We painted them with epoxy. They rotted out from the inside in about six months. The moral of the story: Unless you fully encapsulate your wood with epoxy, a partial impervious finish can be like wrapping it in a plastic bag, and it can rot.
So I painted everything else with linseed oil. It repels water and lets the wood breathe enough.
Linseed oil is amazing stuff. It's what Rembrandt and all those other painters made their paint from. It will last forever.
The stuff you get from the hardware store has heavy metals mixed in to make it set up faster.
It's not intended as food so the law doesn't require them to fully disclose the ingredients.
A friend of mine got poisoned by his dad who thought linseed oil from the hardware store was health food. It actually is the same as flax oil, which is a valid modern health craze.
But the heavy metals made his brain a little odd.
Step 9: El Magnifico!
If you put a linseeded board in the sun it won't ignite, but the oil will react too fast and turn into gummy "orange peel" gunk on the surface.
TO BE CONTINUED...