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Drazen

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Posts posted by Drazen

  1. Hopefully somebody has experience and some hints…

     

    I have a question concerning the gluing with super-glue (cyanoacrylate). After several months, I was using CA glue, some of my parts (a very important ones and already installed) got yellow with the time. Please see the photos where you can see the problem: before one year right after gluing and now.

     

    My questions:

    • What do you do against this?
    • Is there a procedure to remove the yellow tone?
    • How is with the resin/epoxy, same problem or not so strong as with CA?

     

     

    Here are few facts about this problem:

    • I was thinking it could be a reaction with the shellac, but there are parts without any shellac and still yellowing strong.
    • The problem occurred after 6 to 10 months after gluing
    • The wood material where it occurred is maple.
    • At the same time, I made a ladder out of pear wood. There, I cannot see any yellow effect.
    • The water outlets were on the ship and the gratings were in the closed plastic box - same effect of yellowing.
    • On some parts, I was using the activator to accelerate CA, and on some not - no difference in effect.
    • The glue was CA fluid and also gel - no difference.
    • The humidity in my cellar where I work is from 45% in winter up to 70% in summer.

    The water outlets are already installed and very difficult to repair. The yellow effect would ruin the impression of the ship significantly. I positioned today a small part near the window to see if sunlight can minimize the effect. I know that the decals on plastic models can get yellow with the time and this can be removed if one leaves the model on the direct sunlight - than it gets white again.

     

    Any idea?

     

    Thanks in advance.

    Drazen

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  2. Step 2: Translate the contours from the cardboard to a piece of pear wood. Then, cut with a fret-saw and bend with steam till it fits the ship curvature. Trim (grind) again in (very!) small steps till it fits into the place nicely. Good grinding jigs help a lot.

     

    I prepared the pear wood to be 0.5mm thicker than the final plank thickness – this, I will remove when grinding the whole ship hull in order to get a nice, smooth surface.

     

    Dražen

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  3. Here, I will explain the planking technique. Although probably for many a known method, maybe for some interesting to read.

    I am showing it on one of the most bended/complicated plank - due to the strong curvature on the bow.

     

    Step 1: Cut the plank template out of a cardboard and trim it so long till it fits nicely and follows the contour exactly. This needs a lot of trimming in small steps.

     

    Dražen

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  4. Hi Bruno,

     

    I am not sure if I understand your question. .. but I will try to answer.

     

    Mile did finish a second Jadran (marine school ship of former Yugoslavia) in the meantime. He worked last 1.5 years on it and that is why Royal Caroline has a relatively slow progress. Otherwise, Mile is extremely fast... I always get frustrated how slow I am, when I see his progress  :-)

    ... but maybe we post some photos of Jadran into the forum.

     

    The next, we are looking for the plans of the Royal James 1671 – not easy to find these plans at all. Mile is going to do the Royal James after the Royal Caroline, in a bigger scale – probably 1:48 – and he will do it as an admiralty model. This will be something to report!!!   … a huge model with extreme precision and impression of reality which I am used to see when Mile is doing things. I am looking forward a lot to this project.

     

    Dražen

  5. To Omega 1234:

     

    Concerning the carvings, I can tell here for Mile something since Mile is not using a computer much…

     

    Mile is doing carvings out of the pear wood. The tools are made by himself and out of old drills. Some of them I show here on the photo so you can get an impression. The carving procedure is following:

    Print a sculpture in scale of the model on a paper

    Glue the picture on the piece of wood (pear wood)

    Cut the contour of the sculpture (around the picture) with a fret saw

    Start carving – leaving the upper contours untouched and carving away the areas you do not need

    Practice, practice, practice…

     

    My remark: Boxwood would be even more suitable for the carving work, but the pear wood is also a good material too.

     

    Dražen

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