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General Discussion about the Great Alaskan / Re: Christienelle build
« Last post by Djeffrey on Today at 12:56:43 PM »
Thanks Brian. I assume that is 4x8 sheets. Was thinking of getting 10 footers since theyíre  available ( one less scarf joint).  Can you also tell me what I will need for the house. Like I said shipping is expensive so I might as well get it all in one shipment. Thanks
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General Discussion about the Great Alaskan / Re: Christienelle build
« Last post by Brian.Dixon on Today at 09:40:11 AM »
Congratulations on starting your Great Alaskan project!

The bill of materials (Construction Manual Part 1 of 2) states 15 sheets of 3/8" plywood, but note that is for a 26 ft boat (the standard or base size).  For the extended side panels that go on a 28 ft boat, you'll want one more ... so a total of 16 sheets of 3/8" plywood.  Doesn't hurt to have one or two extra just in case you mess something up - you can always use it for the superstructure later.  For a 28-footer, I would recommend 16 sheets of 3/8" plus any extra that you may want.

The same applies to the 3/4" plywood.  The bill of materials for a 26 ft boat is 10 sheets of 3/4" plywood, but you'll need an extra sheet for the extended bottom panels.  You can find scrap for extending the chine flats, so no need for another sheet for that.  Again, an extra sheet or two won't hurt and can be used somewhere in the superstructure if necessary to use it up.  For a 28-footer, I would recommend 11 sheets of 3/4" plywood plus any extra that you may want.


Brian

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General Discussion about the Great Alaskan / Christienelle build
« Last post by Djeffrey on Today at 09:24:23 AM »
Getting my material list together and want to run it by you guys. I am building a 28 and am living in Colorado so my wood is coming from the east coast. Shipping is about $500 so I want to get it right. I am using okoume plywood.

15 sheets of 3/8 plywood
10 sheets of 3/4 plywood

Does that sound about right?

Dennis
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Lookin' great!

Jigsaw?  Hated?  Ha!  It's the most-used tool in the stack (or maybe a 5" random orbital sander).  I love my jigsaw (a Bosch).  You learn pretty quick how to follow a line, apply side pressure to the blade towards the outside of a cut so the blade doesn't torque around etc ... doesn't take long.  Keep in mind that close enough is good enough too ... epoxy fills gaps.

Brian
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I lofted and cut the chime flats this weekend.  It was more time consuming than I anticipated.  I learned that the jigsaw is most hated tool encountered so far.   I should be sticking parts together within the next couple weeks as glass and epoxy orders trickle in. 
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I finished the template for the shelves.  I ended up gluing a small strip of doorskin to the 3 pieces at the joints  and let it sit til next weekend.  They turned out great.  I used my block plane to plane right to the pencil line.  Cut just a hair wide and worked to line.  Only added a few minutes work, but it was worth it.
   What is the reason for the lofting to come in(narrow at the transom) on the full size lofting?   Without this sheet as reference does this just work itself out when you place the shelves in the molds?  I feel like Iím missing something.

1. If I understand right on the 1st post above, one side will have the sheer shelf layers in opposite order ... that's fine as long as the final thickness of everything is as designed.

2. The boat is narrower at the stern than it is at amidships.  It doesn't matter if you use Sheet 002c or Sheet 002c-alt to create the sheer shelves.  If you use the 002 version, the angle where the aft straight section (the A/B line) will result in the boat's width being narrower at the stern.  This isn't obvious in Sheet 002c because loftings are only shown up to 168" from the bow.  In Sheet 002c-alt, the full-size lofting, loftings are provided right to the stern so you can readily see that stern is narrower... but note that the wood from the 168" line to the stern is still a straight run, just like in Sheet 002c.  The results are the same regardless, that the boat is wider at amidships, narrower at the stern.  The molds are correct for carrying the shelves in the right place - Look at shelf molds #1, #2, and #3 in Sheet 010c ... notice how the width gets narrower as you go towards the stern.

The bottom line:  Yes, it all works out in the end!  ;D   The stern end ... haha, pardon the pun :)

Brian

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I finished the template for the shelves.  I ended up gluing a small strip of doorskin to the 3 pieces at the joints  and let it sit til next weekend.  They turned out great.  I used my block plane to plane right to the pencil line.  Cut just a hair wide and worked to line.  Only added a few minutes work, but it was worth it.
   What is the reason for the lofting to come in(narrow at the transom) on the full size lofting?   Without this sheet as reference does this just work itself out when you place the shelves in the molds?  I feel like Iím missing something. 
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I lofted the shear shelf templates yesterday. I learned 2 things.  2 doorskins are not big enough.  I added a third partial skin I had left over from another project.  Second, I was so excited to scarf plywood that I scarfed The 5th sheet.  I only needed 4 for the bottom panels. So I think I can fix that by swapping layer 1 and layer 2.  Looks like the stagger for the shelf blanks is about 6Ē or more.  So layer 2 will become 3/4Ē and layer 1 will become 3/8Ē.  There are no consequences down the road that I can think of, is there?   I also wish I would have ripped the bottom panels first.   Now I have to work with 7í plywood panels for the chines. I need to Think ahead dammit!
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You added a lot of long-term life to that shop - what you did was the perfect medicine.  The concrete floor is a huge improvement, as is the elimination of support posts in the middle of the shop by switching to trusses.

Brian

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One corner was all swallowed up!  The extra low warpy corner was 11 inches lower than the corner with the sliding barn door that you reposted from the other thread. I raised it 6 inches before the building started to shift.  Itís still low, just not really noticeable.  As i said in the house for a GA thread. Not perfect, but perfectly functional!
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