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Thread: Building Heidi | Documenting & Questions

  1. #106
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    Default Re: Building Heidi | Documenting & Questions

    I'm surprised that nobody smarter and more knowledgeable than me has commented yet. Most boatbuilding references specify scarf ratios in the 8:1 or 12:1 range. 12:1 is supposed to be stronger.

    You work much faster than I do and make fewer mistakes! By now you probably have glued the risers together and installed them on the boat, so if the joints are holding -- well, that is the test.
    "George Washington as a boy
    was ignorant of the commonest
    accomplishments of youth.
    He could not even lie."

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  2. #107
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    Default Re: Building Heidi | Documenting & Questions

    Just spotted this thread and I'm enjoying it immensely! I'm hugely impressed with your speed of work! Makes me feel like a major slacker..oh wait...I AM!

  3. #108
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    Quote Originally Posted by UCanoe_2 View Post
    I'm surprised that nobody smarter and more knowledgeable than me has commented yet. Most boatbuilding references specify scarf ratios in the 8:1 or 12:1 range. 12:1 is supposed to be stronger.

    You work much faster than I do and make fewer mistakes! By now you probably have glued the risers together and installed them on the boat, so if the joints are holding -- well, that is the test.

    Time for a good laugh—you were right about them being glued and also right about them being weak!



    I struggled for a good but trying to get them set up properly.


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  4. #109
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    Then when the time came to bend it into place, the scarf busted!

    I bit the bullet and ordered some white oak that is long enough, so things are on pause until that comes in. Luckily I should be able to use this stock in shorter lengths for other parts.


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    Last edited by Future Old Guy; 05-14-2021 at 03:09 PM.

  5. #110
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    Default Re: Building Heidi | Documenting & Questions

    glue failed - maybe too much squeeze out with shorter scarf ratio? when I have "broken" scarfs it is the wood that breaks not the glue. What epoxy were you using?

  6. #111
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    Quote Originally Posted by gray duck View Post
    glue failed - maybe too much squeeze out with shorter scarf ratio? when I have "broken" scarfs it is the wood that breaks not the glue. What epoxy were you using?

    Thixo from Total Boat. Another factor I keep thinking about: I tried installing these about 16 hours after I glued them up. I am not sure if that was too early.


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  7. #112
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    Default Re: Building Heidi | Documenting & Questions

    Are they oak?

  8. #113
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    Default Re: Building Heidi | Documenting & Questions

    I give my epoxy joints at least a week (two when I can) before I load them up. I've only used the West G-Flex on oak, so I have no experience with Thixo...and my joints weren't being bent.

  9. #114
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    Default Re: Building Heidi | Documenting & Questions

    8/1 is a minimum

    10 is better

    12 better yet, specially when bending

    scarfjoint.gif

    as mentioned above allow more time for full curing

    not enuff scarf(go4 12/1) starved joint(squoze too tight) and not enuff curing time(at least a week b4 bending)

    not likely the pox's fault

    just this old man's 2 worth this morning

    sw
    "we are the people, our parents warned us about" (jb)

    steve

  10. #115
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    Quote Originally Posted by nrs5000 View Post
    Are they oak?

    Yes


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  11. #116
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    Quote Originally Posted by Hugh MacD View Post
    I give my epoxy joints at least a week (two when I can) before I load them up. I've only used the West G-Flex on oak, so I have no experience with Thixo...and my joints weren't being bent.

    Wow, this is much longer than I would have assumed. Thank you. I’m used to only using wood glue on projects so I wrongly assumed letting the epoxy cure overnight would do the trick, just like titebond.


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  12. #117
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    Quote Originally Posted by swoody126 View Post
    8/1 is a minimum

    10 is better

    12 better yet, specially when bending

    scarfjoint.gif

    as mentioned above allow more time for full curing

    not enuff scarf(go4 12/1) starved joint(squoze too tight) and not enuff curing time(at least a week b4 bending)

    not likely the pox's fault

    just this old man's 2 worth this morning

    sw

    I appreciate it, SW—thank you. I feel more confident going back and trying again after experiencing this trial and error and getting this feedback from the community.


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  13. #118
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    Default Re: Building Heidi | Documenting & Questions

    As Hugh said, get some G-Flex or a similar product—I believe there is one in the total boat line— for oak. In addition to the comments about scarf length and cure time.

  14. #119
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    Well new white oak came in. I ripped it, shaped it and fit it.

    Interesting update—after letting the unbroken scarfed riser sit for a week, it bent into place easily. I don’t think it would have held up well under use because of what you all said, but this confirms that the immediate cause of my break was trying to bend it into shape too soon.


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  15. #120
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    Temporarily screwed in.


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  16. #121
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    Cut and beveled a chunk of oak for the transom. This will support the back seat.


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  17. #122
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    I also fit the center seat. I bought a 1 inch thick stair tread made of white pine from the big box store since I’m running low on funds, time, and energy.


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  18. #123
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    This part is really testing me, and I would appreciate any advice. I cut and beveled this part of the under seat frame, but I do not know how to fasten it.


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  19. #124
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    Mr Kolin says to drive a screw in at an angle. Is what he is describing in paragraph two a pocket screw? I am confused because once the risers are installed, I can’t get behind them to screw from that side since they are right up against the planking.


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  20. #125
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    Default Re: Building Heidi | Documenting & Questions

    I would think angled from the rear. You might also glue it, or rely on the fastening it to the thwart, and the thwart to the stringer.

  21. #126
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    I finally pulled the trigger and screwed the brace on, using a simple curve detail.


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  22. #127
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    I ended up going in from the top, since after glueing some of the oak into a thicker piece it provided a good amount of surface area and an easy angle to work at. I also epoxied the joint.


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  23. #128
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    I’ll hand plane sand the top.


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  24. #129
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    Default Re: Building Heidi | Documenting & Questions

    Lookin' good -- a furniture maker's solution with the pocket screw!

    Once the epoxy has cured, you may wish to remove the screws temporarily to avoid dulling your plane. You can soften the epoxy by heating the screw with a big soldering iron. They will be easy to reinstall.
    "George Washington as a boy
    was ignorant of the commonest
    accomplishments of youth.
    He could not even lie."

    -- Mark Twain

  25. #130
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    Default Re: Building Heidi | Documenting & Questions

    Canoe- Thanks for the tip regarding heating the screw. I'm new to using epoxy so that is good to know.

    I also was traveling up 81 last weekend and tried to visit the two stores you recomended. Unfortunately, the GPS told me that I would reach the first at 4:58 and it closed at 5, and that I would reach the second at 5:53 and that one closed at 6! I will have better luck tool hunting next time.

  26. #131
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    After looking at the stair tread I bought I quickly decided to replace it with something more pretty. I have a neighbor who got a barn-find worth of cherry that had been sitting unused for over 55 years. I decided to buy some of his stock for the seats and started with the center one.


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  27. #132
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    I screwed it down and threw some water on it to get a sense of what it will look like varnished.


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  28. #133
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    Next up was the rails.


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  29. #134
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    I used an off cut to mock up a design. I made it a bit thicker than the plans had since I like the look of a substantial rail. I also borrowed the idea of bevel on the underside from one of Louis Sauzedde’s videos.


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  30. #135
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    Bedded and fastened it. I was happy with the result, and it feels good to grab.


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  31. #136
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    Getting there.


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  32. #137
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    Default Re: Building Heidi | Documenting & Questions

    Looking good!

  33. #138
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    Default Re: Building Heidi | Documenting & Questions

    Very nice!

    Ken
    When the desire to learn is greater than the desire to win, the journey becomes the prize.

  34. #139
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    Default Re: Building Heidi | Documenting & Questions

    Really nice work; your progress is impressive.

  35. #140
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    Default Re: Building Heidi | Documenting & Questions

    Beautiful sheer line in profile shot!

    curiosity question: What is the chicken wire fence for? Snakes, kids,

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