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Thread: Building a Wharram Hitia 14

  1. #36
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    Default Re: Building a Wharram Hitia 14



    In this video I am glueing the stiffeners and deck supports to the bulkheads. I also have started stitching the second hull.

  2. #37
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    Default Re: Building a Wharram Hitia 14



    In this video I am stitching the side panels of the second hull together. At the end of the video I am taking a look at the drawings to see how to stitch the bulkheads. I then discover that I have glued the stiffeners on the wrong sides on 6 of the bulkheads. So now I will soon discover how easy or difficult it is to remove the epoxied stiffeners and deck supports.

  3. #38
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    Default Re: Building a Wharram Hitia 14

    I'm not sure if I understand the intended build process here. Anyway; The nice thing about using epoxy is that, if worst comes to worst, you can always just grind it off.

  4. #39
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    Default Re: Building a Wharram Hitia 14



    In this video I am glueing the stiffeners and deck supports again on the bulkheads, but now on the correct side. I discovered this mistake a couple of days ago. I think I don't have to remove the incorrect ones, just remove a little bit at places where these wrongly placed stiffeners and deck supports are in the way. I also started making a stand for one hull.

  5. #40
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    Default Re: Building a Wharram Hitia 14

    Its good to remove any extra weight you can out of these little cats. Its surprising how quickly the little bits add up. Won't take long to plane them off.

  6. #41
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    Default Re: Building a Wharram Hitia 14

    Quote Originally Posted by Geftb View Post
    Its good to remove any extra weight you can out of these little cats. Its surprising how quickly the little bits add up. Won't take long to plane them off.
    Thank you for your comment. I thought about it, and I agree with you. I will remove the wrongly placed stiffeners and deck supports to save weight and stick to the building plan.

  7. #42
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    Default Re: Building a Wharram Hitia 14



    In this video I first clean up the workshop. Then I do some work on placing the stiffeners and deck supports on 2 bulkheads (again). I also assemble one of the stands for the hull. I use epoxy and some nails to keep it all together while the epoxy dries. Later I will add fillets to the stand to make it all stronger.

  8. #43
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    Default Re: Building a Wharram Hitia 14


    In this video I am glueing stiffeners and deck supports on the bulkheads and I am adding fillets for more strength on the stands.

  9. #44
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    Default Re: Building a Wharram Hitia 14


    In this video I am stitching bulkhead 3 and 2 in place in one of the hulls.

  10. #45
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    Default Re: Building a Wharram Hitia 14


    In this video I stitch bulkhead 1 and 4 in place. Afterwards I am spatula's with 2,5cm radius out of thin plywood, which I will use for making the keel and bulkhead fillets.

  11. #46
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    Default Re: Building a Wharram Hitia 14


    In this video I start with making the fillets for the keel. First I stitch and clamp the side panels to the sternpost which were still not together. I had to use clamps, because the copper wire that I am using is too thin to keep this part together. Next time I will use thicker copper wire. After that I tighten all the stitches. Then I lightly send the areas where the fillets will be and after sanding I use the vacuum cleaner to take the dust away. Then I start to do the filleting. The straight horizontal part goes very well. The stempost part that is at an angle does not go that well, there are several bumps in the fillet. I will try to sand that smooth tomorrow. It was a good day.

  12. #47
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    Default Re: Building a Wharram Hitia 14


    In this video I am making the keel fillet between bulkhead 4 and 3. I am lightly sanding the areas where I am going to apply the fillets, then I clean the areas, then I apply a layer of unthickened epoxy and then I create the fillet. I am mixing epoxy in paper small cups so every batch I can make only a fillet of about 70mm. I tried mixing larger batches of epoxy, but with the paper cup size I am using and the temperature in my workshop I find that smaller batches work much better.

  13. #48
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    Default Re: Building a Wharram Hitia 14


    In this video I finish making the fillets on the keel, sternpost and stempost of hull 1.

  14. #49
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    Default Re: Building a Wharram Hitia 14

    Hello,

    ....I don't see you applying any glue/epoxy in the stitching areas (bulkheads/sternpost/bow to the sides). Are you counting only on the fillets for the gluing and force transfer??

  15. #50
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    Default Re: Building a Wharram Hitia 14

    Quote Originally Posted by thjakits View Post
    Hello,

    ....I don't see you applying any glue/epoxy in the stitching areas (bulkheads/sternpost/bow to the sides). Are you counting only on the fillets for the gluing and force transfer??
    Hello Thjakits,
    Normally I apply a layer of unthickened epoxy first at the places where the fillet will be.

    I have forgotten to do that at a few places. In the beginning of the video you can see I did apply some unthickened epoxy with a brush at several places. But at some other places I have not applied unthickened epoxy first.

    Thank you for pointing this out to me. I will do it and show it clearly in next videos so that other people do not make this mistake. Thank you.

  16. #51
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    Default Re: Building a Wharram Hitia 14

    HI again,

    ... I think I did not get my question across correctly: (I don't have any Wharram plans, so I don't know what/why is their standard construction procedure...)

    I wonder(ed) about the stitch line itself - where the wooden parts touch - is there no glue going there, BEFORE stitching?
    Is the join held together just by the glue in the FILLET? Or is the glue (...or supposed to) seeping into the stitch-join area?

    Good luck,

    thjakits
    Last edited by thjakits; 11-11-2018 at 08:10 PM. Reason: spelling

  17. #52
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    Default Re: Building a Wharram Hitia 14

    Quote Originally Posted by thjakits View Post
    HI again,

    ... I think I did not get my question across correctly: (I don't have any Wharram plans, so I don't know what/why is their standard construction procedure...)

    I wonder(ed) about the stitch lone itself - where the wooden parts touch - is there no glue going there, BEFORE stitching?
    Is the join held together just by the glue in the FILLET? Or is the glue (...or supposed to) seeping into the stich-join area?

    Good luck,

    thjakits
    Hello thjakits,
    There is no glue before stitching. And because there is no glue, you can adjust the postion and shape by pulling the stitches tighter or by loosening the stitches.
    The glue/epoxy is supposed to go all the way into the stitch join area, having no gaps or air within.
    Thank you,
    Kindest regards,
    Marcel

  18. #53
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    Default Re: Building a Wharram Hitia 14


    In this video I am making the fillets on the bulkheads of one of the hulls. The more I practice the better the fillets get. It has been more than 10 days since the last time I uploaded a video. I have been to Yangon, Myanmar for a couple of days. If you like to see a video about that trip, you can find it on my other channel: https://www.youtube.com/channel/UCVV...0J1lozDZy1EsjA

  19. #54
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    Default Re: Building a Wharram Hitia 14


    I start with a clean up of the shop. Now I am going to see how to fit the fore and aft deck. While I am looking at it I am thinking of doing some work to make it all look better, even though most of it will not be visible once the fore and aft deck are epoxied in place. I am also thinking about sanding everything inside another time with 80 grit sandpaper and apply a layer of epoxy. While I am removing epoxy and pieces of deck support that are wrongly places I notice how strong the epoxy bonds and fillets actually are. I use my wonderful Japanese chisel to remove the wrongly placed deck support. The end result looked very nice, but I can’t show it in this video, because the battery of my camera was empty.

  20. #55
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    Default Re: Building a Wharram Hitia 14


    In this video I cut out a notch in the fore deck panel where the stempost will fit. I also removed another deck support that I had epoxied in the wrong place.

  21. #56
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    Default Re: Building a Wharram Hitia 14


    In this video I first move the stands so that the boat is standing more stable while I am working on it. You will also see that I started sanding everything. The building plans don't tell to do this, but I want to inside and especially the fillets looks better, so I decided to sand everything smooth and then apply a layer of unthickened epoxy and at some places touch up with thickened epoxy. I am especially not satisfied about the looks of the stempost fillet, so I will try to make it better. After that I am drilling 12mm vent holes in bulkhead 1,3 and 4. These holes are sanded and will also get a layer of epoxy. I am also fixing then deck stringer to the fore deck. The method is to first drill a few holes so that the stringer can be stitched and kept in place. After that I put a layer of unthickened epoxy at the place where the stringer will be and then I put colloidal silica into the resin and hardener mix and apply this to the stringer. After it is in place and stitches tightened I put some nails into it to fix them.

  22. #57
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    Default Re: Building a Wharram Hitia 14


    In this video I am doing some sanding and cleaning in preparation for making the fillets and panels look much better. Most of this will not be visible later, but I still want to do it, because I am learning a lot about the materials and methods that I am using. I am feeling so good when I am working on my boat.

  23. #58
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    Default Re: Building a Wharram Hitia 14


    I did not do so much today. I just cleaned up the sanding dust again and fixed the aft deck stringer.

  24. #59
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    Default Re: Building a Wharram Hitia 14


    In this video I receive the sails, running & standing rigging & deck hardware from Rolly Tasker Sails in Thailand. At first I contacted them to order the sails, but I was very delighted that they are also able to provide running & standing rigging and deck hardware. I am very satisfied about how the team of Rolly Tasker Sails helped me with all the things I need for my Wharram Hitia 14. I am also very happy that they labelled every item, because I am not yet familiar with everything.


    Rolly Tasker Sails : http://www.rollytasker.com

  25. #60
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    Default Re: Building a Wharram Hitia 14


    In this video I am making the fillets look a bit better & apply epoxy coat on the inside hull panels & bulkheads. Another 3 work hours. Not much interesting happening, but I am just documenting all my work on the Wharram Hitia 14.

  26. #61
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    Default Re: Building a Wharram Hitia 14


    In this video I am planing the corner of the ply hullsides in preparation of epoxying the fore and aft deck in place.

  27. #62
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    Default Re: Building a Wharram Hitia 14


    In this video I am using epoxy and nails to fix the fore and aft deck panels in place. While I am doing this my neighbours are happy it's Saturday evening and playing music and drinking beer.

  28. #63
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    Default Re: Building a Wharram Hitia 14


    I am trying something new here in the description, adding the precise time in the video with a description of what I think I am doing there


    0:05 marking the location of the stiffeners
    0:20 cutting the stiffeners to the correct length with the jigsaw
    0:25 drilling holes for copper wire that keep the stiffeners in place while the epoxy sets
    0:35 applying unthickened epoxy on the stiffeners
    0:40 applying thickened epoxy on the stiffeners
    0:45 removing clamps that held the fore and aft deck panels in place while the epoxy hardened
    0:50 removing nails that held the fore and aft deck panels in place while the epoxy hardened
    1:00 removing the copper wire that held the stiffeners in place while the epoxy hardened
    1:05 coat the inside of the deck panels with 2 layers of epoxy
    1:21 i wish it wasn't so, but at some parts the sheer stringer did not adhere flat on the hull. I fill the gaps to the best of my ability with thickened epoxy
    1:25 seeing how the deck panel will fit
    1:30 using copper wire to stitch deck panel to bulkheads, later I decide to use clamps, because my copper wire is probably too thin and I feel it is not strong enough to keep the curved deck panel in place

  29. #64
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    Default Re: Building a Wharram Hitia 14



    0:01 dry fitting the curved deck panel
    0:15 using the block plane to make a corner fit
    0:26 using clamps to hold it all togethebr /> 0:36 using a large heavy sheet of plywood as temporary table
    0:41 sanding a smoother curve on the bulkheads
    0:51 sanding all other contact surfaces before using epoxy
    1:16 applying epoxy fillets on the inside faces of curved deck panel
    1:51 my epoxy work station
    2:15 cleaning up the epoxy work station

  30. #65
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    Lexington, MA
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    Default Re: Building a Wharram Hitia 14

    You are a very neat and precise builder. Thank you for sharing.

    This is especially gratifying to watch because I have been watching a guy on YouTube who is trying to finish an old Wharram Tiki 46 that he bought. He does not seem to know what he is doing.

    I really like the short videos.

    Kenny
    Almost everything about boats involves so much more time and money than one anticipates that rational and accurate planning will deter even starting. Ian McColgin

  31. #66
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    Default Re: Building a Wharram Hitia 14

    Quote Originally Posted by minuteman View Post
    You are a very neat and precise builder. Thank you for sharing.

    This is especially gratifying to watch because I have been watching a guy on YouTube who is trying to finish an old Wharram Tiki 46 that he bought. He does not seem to know what he is doing.

    I really like the short videos.

    Kenny
    Dear Kenny, thank you very much for your nice comment. It cheered me up and motivates me.

  32. #67
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    Default Re: Building a Wharram Hitia 14


    0:01 cleaning the shop before starting work
    0:11 filling some gaps and ridges with thickened epoxy
    0:36 sanding excess epoxy on bulkhead
    0:41 removing excess epoxy with the chisel
    0:46 using my block plane to remove a part of the curved deck panel and create a bevel
    0:56 dry fitting the flat hatch deck panel
    1:00 removing dust and wood chips
    1:11 prime the surface with unthickened epoxy in preparation of making a fillet
    1:16 making the fillet on a part of the curved deck panel where the flat hatch deck panel will be attached
    2:00 cleaning up the workshop

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