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Re: [Michalak] (unknown)

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  • john colley
    Jeff s ebooks are great.I have downloaded and printed them.Also his Huntington harbour Kayak i hope to build soon.   There is magic in the feel of a paddle
    Message 1 of 5 , Mar 29, 2013
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      Jeff's ebooks are great.I have downloaded and printed them.Also his Huntington harbour Kayak i hope to build soon.


       
      "There is magic in the feel of a paddle and the movement of a canoe, a magic compounded of distance, adventure, solitude, and peace."
      -Sigurd Olson


      ________________________________
      From: Andres Espino <ima_very_cool_cowboy@...>
      To: "Michalak@yahoogroups.com" <Michalak@yahoogroups.com>
      Sent: Saturday, 30 March 2013 3:41 AM
      Subject: Re: [Michalak] (unknown)


       
      Here is a good place to mention Jeff Spira whose site produces mostly Dory and Sgharpie plans.  His unique thing is that his plans are drawn to the dimensions of lumberyard lumber and he discusses the use of it in his free boat building ebooks on this page..
      http://www.spirainternational.com/hp_free.html

      This topic has been discussed a lot in different groups and the consensus l;ately is that almost all exterior grade ply uses the same waterproof glues these days.  The main difference between EXT construction and marine ply has always been the number of voids (holes where knots fell out in the inside laminations) and plugs (those football shaped patches that fill the outside ones.

      Bryan Lowe reported on his build of Escargot this problem with Marine Ply back in 2000...

      April 8, 2000 – I can’t believe how
      bad wood has gotten.   Unbelievable.  The AA grade Marine plywood the
      sent me is filled with voids and plugs and putty.  One sheet has 12
      fills.  I complained and they said look around, that is what is
      available.  So I did… and found that he is close to right.   His stock
      was probably the left overs in the stack… but industry standards now
      allow up to 20!!!! fill plugs per side.  Amazing… and each sheet is
      about $45.    The 3/8 inch ply is proving so tough to get that I will
      keep his stuff… sigh.  The half inch only goes on the bottom and will be covered with fiberglass fabric… so the fill plugs shouldn’t be a big
      deal.. .. I am not sure though.

      Most home build plans allow that top grade A/B or A/C is close to marine quality.

      Andrew

      ________________________________
      From: Carl <carlvolkwein@...>
      To: Michalak@yahoogroups.com
      Sent: Thursday, March 28, 2013 1:00 PM
      Subject: [Michalak] (unknown)


       
      I was wondering if it would be OK to build a small boat with 1\2 inch consturction grade plywood, if I used epoxy and fiberglass on the outside?

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