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About Drazen

  • Birthday 08/07/1965

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    Austria / Klagenfurt

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  1. Hi Y.T., I am sorry. I'm afraid I do not understand. Please, try to go to the date February 11th 2015 and after it. There, I explain how I did the outer planking on the gunport frames. It is hand made - every single plank, not cut out of the frame/planking. Actually, the frame shall make a labyrinth-like closing with the gunport lid. Therefore, the outer planking has a slightly wider frame than the massive inner frame of the gunport. You see it also on the gunport lids when they will be ready. Inside of the ship, the gunport frame is flush with the inner planking (the deck-side). I hope, this is what you meant. But, if I am wrong, please come back to me. I did post all essential steps and technologies. It has to be here listed somewhere. Drazen
  2. ... actually, the gunports have been made not so different as on the real ship. I think also the 1:10 model in Lelystad was using the templates to get the same size of the gunports. You may study my photos from 2013 to understand how I got the same angle, parallelism, etc. Drazen
  3. No, no! Not CNC here. Please, go to the date March 6th 2013. You will find the whole process of making gunports. Drazen
  4. ... and the gunport lids have been made in the same step too. When closed, they fit now nicely to the outer surface. The gunports on the lower deck will be mostly closed (port) or just slightly opened (starboard). The upper decks will have most of the gunports opened. Drazen
  5. The wales are now installed on the ship. I needed to make a slope on the upper side of the wale, so water does not collect there. You see the masking tape against damaging the planks and the small grinding blocks I had been using. Drazen
  6. OK, I think I know which glue you mean. I am using the D3 glue for professional and industry use, not the one which can be both in common building supplies stores. It is water resistant, but not meant for outside being left in the rain. There are wood glues from D1 as the lowest resistance, up to D4 with complete resistance on water. Since my model is not meant to swim, the D3 is more than enough. Concerning CA: Please, please see the photos. A single water spout has been made here of 8 pieces and glued with CA gel glue from the back side. No glue on the visible side. I guess the fumes did the yellowing effect. CA fumes are strong and can ruin for instance a canopy on the plastic plane model. I have had many of this on gratings and got it away by letting them behind the window glass. To remove the effect here, I will try with an UV-lamp. Drazen
  7. What is a "yellow glue"? I know the "white glue" should be PVA-glue what carpenter are commonly using. We have in Europe some sometimes other names and brands. Just a note: Be careful with CA-glue + maple! It will leave a yellow film/shade near the bonds, which may only be removed by leaving the model staying on the sun for several weeks (something like letting plastic models near the window after the decals got a yellow shade). Wit e.g. pear wood, this is not the problem - no yellowing. Drazen
  8. When I was a student, a very good friend and me were restoring an old small sailing boat (Finn class). It was wooden and I can remember, we have had a diluting/cleaning medium for epoxy and for cleaning our tools. However, we did not use airbrush, but manual tools to apply epoxy. The whole ship hull was soaked with epoxy to prevent water coming in and to stiffen the structure. When sailing regattas (what we did), it was very important to have a very stiff hull which does not flex. We did not have money to buy a new boat made of new materials, but had to be innovative. 🙂 I think, I will protect inside of the hull with shellac than. Drazen
  9. I am afraid this is in that stage no more possible. Please, check my build log. Changing basic structure would mean starting building from the beginning. But, please see my build process and if you have any ideas, maybe you see it from another perspective. The solid hull was meant to get a solid ground base for the planking. This showed to be of great benefit. Still, it brings some drawbacks with it, as you see - the sensitivity to humidity. The idea of solid hull was not mine and not new. Some top builders are using it for their ships all the time. It seems that several "small" differences did accumulated and made the system to "tip over": I definitely have extreme variations in my work room, the hull is relatively large, I did not protect inside of the hull during building the hull, De 7 Provincien has in the middle a large area with gratings (so, there is an "U-shape" which means that the upper part wants to widen when the wood contracts)... Just some aspects. Drazen
  10. Let me now explain my strategy how to deal with my problem. 1..Get the humidity to approx 50% and keep it there by humidifier in winter and dehumidifier in summer. 2. After the wood has been acclimatised (e.g. 2 months), I am going to spray few very thinned layers shellac through the gunports. For this, I will probably close all, other openings to get the area filled well. I want to get shellac also in the corners inside of the hull. 3. Than, depending on how much the cracks went back/recovered, I am going to pour epoxy into the gaps where wood cracked. 4. Repairing of the decks if needed. I have some vital parts on the decks damaged (frames of the gratings) which are not so easy to be made again. Better would be not to need to repair this. Let us see. What I am still unsure is if it makes sense to spray thinned epoxy instead of shellac inside of the hull. Epoxy would make the whole thing very solid, but I must check if there are good thinner in order to be able to clean the airbrush afterwards. Also, the toxicity of epoxy is an issue. But, for this I have a very good mask which has a very good filter build in. Any comments on this? Drazen
  11. Bob, I do also apply shellac by brush on the areas which are accessible to the hand-brush. The whole idea on airbrushing shellac was to protect the inner areas of the ship by airbrushing through gunports. The wood has not been protected from inside, but only from outside (this by hand brushing shellac or Golden GAC100). Still, the ship hull is getting or loosing moisture from inside and this happens for instance through the gunports. I think the most of the harm has been happened by non-protected inside and exchange through gunports. I cannot reach every corner of the inside of the ship by brush - by airbrush probably better. Please, check the previous photos of the ship in different stages in order to understand what I mean. Here again also the link to my build: Drazen
  12. Well, spraying very thinned shellac is possible with my airbrush(es). I can do several thin layers after the first one has been set and soaked into the wood, the next one comes to make the sealing more tight. What actually is the problem with airbrushing, is that you have an airflow which must hit the surface in order to leave paint there. The areas, where the spray is not circulating (e.g. corners) will be covered not so well. But, I must try with a stronger amount of medium. I can make a big mess inside my gunports since they are more or less closed on the lover decks. I will leave the 50% humidity till spring and when it starts to go over the 50% by itself, I will take my gun (airbrush-gun I mean) and do this job. Bob, a very nice explanation., Thank you! Drazen
  13. For me as a guy who studied mechanical engineering, these terms are fine. Still, thank you a lot for sharing this book chapter. I will go through it thoroughly. I see now, that this topic is educative for many and for me especially. The question is for my case now: What to do to stop the process on the top of keeping the moisture between e.g. 40% and 60%? After I have solved the first problem: what to do with the damages I have got? @1. As you can see on the basic construction of the hull and later on the ship how it looks now (please, try to visit previous stages of building process), the hull is opened on many places (gunports, gratings, but also the planking itself does not seal 100% since there are fine cracks everywhere). My idea was to seal the inner part of the hull. It does not help to seal the decks and planks when the humidity has the chance to "free exchange" through these openings. Well, an idea is to shoot a big amount of shellac through the gunports by closing at the same time the other gunports in order not to get the spray out where I do not want. I have several very good airbrush guns and a good compressor and this may help sealing the ship from inside. Through gratings, it may not be possible, since the area below is closed and painted dull black. Maybe this is one of the possibilities to lower the stress and minimise the moving process since the "entrance areas" would be much smaller. Still, I am not sure how good an airbrush mist would reach areas like inner corners, but many areas will be shot and covered. Inserting long screws through the gunports would be nearly not possible and also would not solve the problem. It may hold only in one direction. This would not be enough. @2. One possibility is to do some planks again. I was hoping the cracks will go beck with increasing of moisture, but, as it had been said here. this is an irreversible process. Previous to this, I may pour some thin epoxy into the gaps to close them and additionally plank on this solid base. If you have any ideas, please, be free to post them. Drazen

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