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Maybe the beginning of a larger project #7: I am 3 dimensional!

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Blog entry by Mark Shymanski posted 378 days ago 583 reads 0 times favorited 8 comments Add to Favorites Watch
« Part 6: Progress - pictures pending. Part 7 of Maybe the beginning of a larger project series Part 8: A slow day but I am now officially working on hull 816! »

Its been a pretty productive couple of days, I left off having installed the chine logs on the port side. I now have the starboard side done the bow and transom pieces cut and their chine logs installed except for a goof up I’ll reveal in a bit things have been going pretty good. Last night I left it like this…

It now looks a lot more boat like and it actually looks much roomier than my kayak so I am pretty pumped.

I then flipped it over to look like this….

and this is where I ran into a bit of a dilemma. Did I want the transom and bow pieces to overlap and protect the leading edge of the bottom plywood or the other way around ? In a similar way I pondered how the top of the flotation tanks should mate with the vertical pieces. Then I figured “I’m over thinking this” and I just used the tops of the tanks to provide that lip on top and I put a similar lip on the bottom. I figure I’m going to epoxy the whole shebang any way so I shouldn’t worry too much about details like this.

So now it looks something like this…

You will notice right away the goof I talked about earlier…I forgot to install the horizontal bracing on both the transom and the bow so there was nothing to nail to. This is when I decided it was time for a coffee.:-) Those of you with eagle eyes may notice that the bottom sheet isn’t flush with the sides in fact there is a 3/8ths inch lip where I neglected to shorten the transom and bow to account for the width of the side plywood pieces. I wasn’t going to pull all those ring nails just to fix a ‘design element’ so I’m counting on being able to smooth out the edges with epoxy and filler.

I did notice that some of the chine logs split when they had nails from two adjacent faces. Having used the chine logs I really want to try stitch and glue. I can see where it would be a more elegant solution. Considering I need to epoxy all the joints and edges (and blemishes in the plywood) I don’t think the chine logs really save any effort. Mind you I’ve only read and viewed stitch and glue I should probably reserve judgement until I get a project under my belt:-)

They warn you on the PDR website that boat building can be addictive…I think I now understand why. It really struck home how much fun this is when I drove up the other day and could smell fresh sawdust wafting out of my shop. It perked me up after a long day.

I will need to make a trip in to Winnipeg to pick up some epoxy and cloth so I am going to need to do a bit of phoning around to find what I need. Lee Valley only sells West epoxy does anybody have any experience with it?

Now I’ve got to start figuring out the interior stuff and the rudder and oars!

‘Til next installment,

Mark

-- "Checking for square? What madness is this! The cabinet is square because I will it to be so!" Jeremy Greiner LJ Topic#20953 2011 Feb 2



8 comments so far

View Napaman's profile

Napaman

5318 posts in 2680 days


#1 posted 378 days ago

Nice Progress!!!! I will look at my epoxy—-I cant remember if I am System Three or West Systems…I think I use West…lol…

I love the excitement! You are getting me excited…back from chico and put a finishing coat on another project (thank you gifts for moving help) and tomorrow I hope to TOUCH the pdr…

Matt

-- Matt--Proud LJ since 2007

View shipwright's profile

shipwright

4843 posts in 1401 days


#2 posted 378 days ago

Looking good Mark. Yes you can fill with epoxy and an appropriate filler to make up any little goofs. After all in stitch and glue the epoxy is the chine log and sometimes the wood parts hardly even touch. As long as it is covered on the outside with cloth a myriad of sins can be forgiven with good epoxy. My personal preference has been IFC (now System Three) Cold Cure as the best general purpose boatbuilding resin but West is good too.

Why are you using ring nails? All you need fasteners for is to hold the pieces until the epoxy sets. After that they are just extra weight. You could use sheet metal screws and pull them afterwards. If the fastenings are splitting the wood they are too big. You could get by with a pin nailer too or in many places, just clamps.

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fiberglass trees. http://prmdesigns.com/

View mafe's profile

mafe

9456 posts in 1692 days


#3 posted 378 days ago

So close to hit the water now.
I get really jealous, hope one day to get the chance to build a boat.
Best thoughts,
Mads

-- Mad F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.

View stefang's profile

stefang

12596 posts in 1937 days


#4 posted 377 days ago

Making nice progress Mark, and you are getting a lot of valuable experience and some good advice as well.

-- Mike, an American living in Norway.

View Napaman's profile

Napaman

5318 posts in 2680 days


#5 posted 377 days ago

Yes—-screws (most of which you pull back out and fill) or clamps…

-- Matt--Proud LJ since 2007

View Mark Shymanski's profile

Mark Shymanski

4993 posts in 2315 days


#6 posted 377 days ago

I thought I read on the PDR page that they used ringed nails. Screws make a lot more sense, I should have done that instead. I think I’ll finish up with screws.

Thanks for the advice on the epoxy, Paul. I think I’m going with West because they sell it in Winnipeg and I think I have a gift card for Lee Valley somewhere. I prefer all the information on System Three site and if I ever make another boat I’d certainly like to give it a try. They advertise all these different thixotropic additives. Are they necessary or could you just use sawdust mixed into the epoxy? I’m never quite sure what is marketing and which is actually sound advice. I guess that’s why LJ’s is so great:-)

Come on Mike and Mafe and join the party, grab yourself a couple of sheets of plywood and jump on in:-)

-- "Checking for square? What madness is this! The cabinet is square because I will it to be so!" Jeremy Greiner LJ Topic#20953 2011 Feb 2

View shipwright's profile

shipwright

4843 posts in 1401 days


#7 posted 377 days ago

My preferred thickener (by a long shot) is called “mini fibres”. I get it from my local plastics supplier who also sells System Three but it’s not their product. Sawdust will not prevent epoxy from running and sagging. Mini fibres will.
Thry are listed near the bottom of this page.

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fiberglass trees. http://prmdesigns.com/

View mafe's profile

mafe

9456 posts in 1692 days


#8 posted 376 days ago

I have no place to put the boat once I have it.
Just bought a folding kayak, so I can store it in my basement room.

-- Mad F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.

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