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vaddoc

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  1. Like
    vaddoc got a reaction from Canute in Making wood look like steel   
    Use this water based sealer. Sand wood smooth to 400 grit. Slap it on with a brush with no care. Dries in 15 min. If you want put a second coat. When dry, sand once more with 400 grit or 0000 steel wool. The wood will be as smooth as baby bottom and sealed. Then spray a bit of primer and then paint on top. Self life of this is very long - years.
     
    Deco Art Americana Multi-Purpose Sealer-8oz, Other, Multicoloured, 236 ml (Pack of 1) : Amazon.co.uk: Home & Kitchen
  2. Like
    vaddoc got a reaction from Helge Hafstad in Acrylic paint tips and techniques   
    Hand brushing is a good alternative, quite satisfying as well!
    I have only basic painting skills and do not want to use an airbrush. I have had excellent results with hand brushing using Valejo colours following these rules:
    1. Use very good brushes, with appropriate width for the job
    2. Thin the paint (should be runny but not like water), avoid heavy coats.
    3. For Valejo, use the hand brushing thinner, different and better than the air brush thinner. It congeals if left so must have resin in it (this is what valejo claims so not easily reproduced at home). Get the 60 ml bottle, it is not expensive.
    4. Use a bit of retarder.
    5. Start from dry and end on wet. Take your time, you can go over the area 2-3 times. Avoid puddles at the edges.
    6. Trust the paint! Do not go over again to "correct" or smooth out brush marks. They will disappear. You ll probably need a dozen or more coats either way.
    7. Best to seal the wood, I use a water based wood sealer sanded to 400 grit
    8. I use plastic pots with caps that seal pretty well and are cheap. The paint stays wet for months.
    9. Use only frog tape or Tamiya tape or equivalent. The paint will bleed under ordinary masking tape or electricians tape.
    10. Acrylic paint is not tough so needs to be protected with varnish or some topcoat
     
    Hopefully these will be of help to some. May not work for all but I was able to paint my 80 cm hull with almost no brush marks.
     
    Vaddoc
  3. Like
    vaddoc got a reaction from mtaylor in Making wood look like steel   
    Use this water based sealer. Sand wood smooth to 400 grit. Slap it on with a brush with no care. Dries in 15 min. If you want put a second coat. When dry, sand once more with 400 grit or 0000 steel wool. The wood will be as smooth as baby bottom and sealed. Then spray a bit of primer and then paint on top. Self life of this is very long - years.
     
    Deco Art Americana Multi-Purpose Sealer-8oz, Other, Multicoloured, 236 ml (Pack of 1) : Amazon.co.uk: Home & Kitchen
  4. Like
    vaddoc got a reaction from JKC27 in Making wood look like steel   
    Use this water based sealer. Sand wood smooth to 400 grit. Slap it on with a brush with no care. Dries in 15 min. If you want put a second coat. When dry, sand once more with 400 grit or 0000 steel wool. The wood will be as smooth as baby bottom and sealed. Then spray a bit of primer and then paint on top. Self life of this is very long - years.
     
    Deco Art Americana Multi-Purpose Sealer-8oz, Other, Multicoloured, 236 ml (Pack of 1) : Amazon.co.uk: Home & Kitchen
  5. Like
    vaddoc got a reaction from druxey in Making wood look like steel   
    Use this water based sealer. Sand wood smooth to 400 grit. Slap it on with a brush with no care. Dries in 15 min. If you want put a second coat. When dry, sand once more with 400 grit or 0000 steel wool. The wood will be as smooth as baby bottom and sealed. Then spray a bit of primer and then paint on top. Self life of this is very long - years.
     
    Deco Art Americana Multi-Purpose Sealer-8oz, Other, Multicoloured, 236 ml (Pack of 1) : Amazon.co.uk: Home & Kitchen
  6. Like
    vaddoc got a reaction from Colin B in Deben 5-tonner by vaddoc - FINISHED - Scale 1:10 - a Whisstock yard design   
    Thank you all for your comments!
     
    Druxey, you are are right about the solvents. In my experience so far it has never been a problem, maybe due to the tiny amounts of shellac that I actually have used. For this boat though, which is pretty massive, it might be an issue as I would need to saturate everything with it. I work in my garage which is full of drafts, but still best to avoid solvents.
     
    Mark, there are two issues with the deck beams. One is I did not laminate the longitudinal beams but cut them from 4 mm cherry sheet, so they are not as rigid. The second is that these beams are curved so there are significant torsion forces compared to if they were straight. The bulkheads made a huge difference.
     
    John and Patrick, much appreciated!
     
    Andy I think cotton is the way forward, it should combine well with PVA glue. How will this respond to drilling, painting or gluing anything on it, any advice from your experience?
     
    Back to the boat, I hit a bit of a landmark today!
    The deck beams are finished!
     

     

     
    I had to add some more timber to the hatch as in the plans it is placed too close to the cabin wall. By adding the timber there is enough width for the deck and also space for the hatch cover to be placed.
     

     
    I used cardboard to see how the deck would work. I think it works!
     

     
    The boat is level in this photo with the waterline completely horizontal
     

     
    Now, decisions need to be taken.
     
    1. I need to experiment with the canvas sheath. I am not sure if the deck hardware should be placed before or after the canvas goes on.
    2. I need to think how the upper end of the stem needs to be shaped. It needs to be cut and shaped but I am not sure how.
    3. The stem and transom, as they are now, allow for the boat to be turned over and securely kept in place with the waterline horizontal. I can also define easily the waterline. If I do any more work on the deck I will probably loose this advantage. So the hull I think needs to be painted now.
    4. For this to happen, I need to cut the propeller aperture and probably also make the rudder. 
    5. I will soon need to define the position and install the mast foot. I will also need to define the shape and position of the chain plates, as these probably will be placed under the rubrail.
    6. The Transom needs work as well.
     
    Lots of conflicting priorities! I also have huge concerns with painting such a huge hull, painting is not my strong point. I will spray Humbrol primer on and then I think I will use Humbrol enamel, hand brushing! Then enamel varnish will be brushed on. Hand brushing such a large surface will 99% lead to a disaster but needs to be done and I do not have access to airbrushing or funds to set it up. 
     
    This will be messy!
     
    Regards
  7. Like
    vaddoc got a reaction from Roger Pellett in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    Some progress and at last, a couple of nice photos to post!
     
    I finished the pieces for the deck screwed things together, replaced with wooden nails, add reinforcing pieces underneath, glued everything together and sanded to 400 grit.

    Then I had to decide whether to have black or light caulking. Admiral said black, so black it is! I masked the pieces, mixed black acrylic paint with Osmo filler and splashed it on.

    Then removed tape and sanded everything smooth. The filler becomes light grey but with Tung oil will go ack to black.

    Then I secured the grating with epoxy thickened with gypsum.

    I also made a leg to support the deck using a drill sanding  against the disc sander - very fast results.

    It does not look too bad! When I have time I ll glue everything together and move on


    Regards
    Vaddoc
  8. Like
    vaddoc got a reaction from AnobiumPunctatum in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    It would be very worthwhile but British homes are tiny and the admiral would not have it...
     
    Hakan, I ended up feeling I simply had not enough brain cells for the task! So glad finally it is done.
     
    Good to be back Gary. The mould has disappeared now that the garage has been heating up. The shape incident is interesting. I think initially the ribs were pushing the planks outwards but as slowly they started accepting their new shape, the inward pressure from the planks overwhelmed everything. So thwarts are there really to push the planking outwards - had not realised till now.
     
    I reworked the deck to make it look more proportioned and nice - photo bellow. Still needs work though

    Regards
    Vaddoc
  9. Like
    vaddoc got a reaction from AnobiumPunctatum in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    Greetings to all or should I say "Gratings!"? Yes, today we will be scratch-making gratings!
     
    Honestly, it is far easier (and less bloody) to get them from Chuck. But I had an itchiness to try and either way, I don't think there are gratings at 1:10 scale.
     
    Now, I did make gradings for the Deben but there I cut corners. They came out alright but were not done properly. I ve been scratching my head for the last 2-3 days and tried a few things that did not work. Sadly, a search on MSW was not too helpful.
     
    The problem is the scale. If the size of the squares equals that of the table saw blade, things are easy. But in 1:10 scale, my squares are 5 mm and the tine Proxon blade 1 mm thick.
     
    So here it goes:
     
    I have the small Proxon table saw, it is very underpowered but actually quite accurate and easy to use. I first added a sheet on top of the table saw so that I could clamp something to act as a fence. Then, I  cut several 5 mm strips from a pear sheet, I think it is 3 mm thick.

    Then, I glued the strips on another piece of pear sheet.

    Then, I drilled, inserted treenails dipped in PVA glue, allowed a few minutes to dry (in the meantime worked on a second piece), then lightly sanded and cut a strip across.






    I actually forgot to take pictures but the strips produced look like this

    After I made very many, I managed to cut my finger, thankfully not deep at all.
     
    Then, I started to assemble the gratings. I had to trim every single square with a sharp chisel, by afternoon the dining room was full of tiny wood chippings but the gratings came out quite acceptable I think. They still miss a few tree nails and need sanding, gluing and trimming but I am happy. Apologies for the terrible photo, I ll take a better one for the next post.

    Of course they are far from perfect, the tree nails are in the wrong positions, the squares are not perfect or symmetrical, the grain runs parallel in all pieces instead of crossing 90 degrees (not an issue with pear) but I can live with these.
     
    So I have 3 pieces, one will go on the small deck at the bow, one to the floor aft and the third one I have not figured out yet where I ll use it.
     
    Best wishes
    Vaddoc
  10. Like
    vaddoc got a reaction from AnobiumPunctatum in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    Well, time for another update! I was unwell and stayed home, so got to work a bit more on the boat.
     
    Now, there is some progress but also a lot of questions to be answered and decisions to be made. Any of your thoughts would be most welcome!
     
    First issue is how high to place the thwarts and the floor boards. I tried to find relevant info in books and the internet but did not get anywhere. In the end I measured the original NMN plans and the actual dimensions of the model and tried to use common sense for a realistic and comfortable arrangement.
    At midships, keel to sheer will be 83 mm or in real boat, 83 cm. I think the distance top of thwart to sheer should be 20 cm. The floor timbers should be something like 10 cm high to allow a reasonably wide floor and the top of the thwarts will be about 50 cm from the floor boards. I think this should be a realistic arrangement. Then again, those days people were probably shorter than we are today. Oh well...
     
    Time for a few photos.
    I first made the breasthook. It was a bit fiddly, sanding it curved and bevelled but actually I got it with the first attempt, which was good as pear wood sheets this thick are expensive.


    However, it did look a bit huge and out of scale so I reduce it - I think it looks much better now.


    I think I might add a small deck bellow the breasthook, I think this is what the plans show:

    I then made template for the floor timbers. Again, it was actually a pretty straightforward job.



    Now, these are my thoughts: I d like to seal the interior, prime it and paint it white but keeping the pear wood transom, keel and floors unpainted, these will be enhanced with Tung oil. The stringer that will support the thwarts will also be painted white but everything else added will be unpainted pear wood treated with Tung oil. The outer keel will be painted last.
     
    Alternatively, I could leave the interion unpainted. Just apply Tung oil, seal with water based sealer, rub with 0000 steel wool and then add all the remaining pear wood trims etc and last paint the outer hull.
     
    I do have a suspicion that if I paint the interior, since it is not well sanded and prepared, it might look horrible with all imperfections highlighted by the paint.
     
    Any suggestions would be very welcome!
     
    Regards
    Vaddoc
  11. Like
    vaddoc got a reaction from AnobiumPunctatum in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    Dear all
     
    It's been almost two month since my last post. I have been working on the boat when life permitted - which was not too often.
    But even so, there has been progress.
    To start with, all the screws have been replaced with tree nails. Unscrew the screw, re-drill the hole by hand, dip the tree nail in glue and insert in the whole, wipe the excess glue and trim the nail - then repeat many hundreds of times. 
     
    Then, I started filling the large gaps between the planks with filler, both from the outside and the inside. It is a shame really, these gaps are due to the shrinkage of the wood. When I cut the planks they were tight against each other. However, beech really has a tremendous movement in service and huge changes in dimension with changes in moisture. I will not be using beech again!
     
    So here is how the hull looked like after the filler liberally applied. Not an elegant sight!




    Then I started sanding inside. The little Proxon pen sander was very helpful.

    Then I started sanding the outer hull. This is how one side looks, this is with 80 grit. Beech is very hard wood. There is a dimple in one of the planks at the bow. I think I ll paint this hull so it will be filled.


    Now, just to show how much the beech moves, this is the hull of the Launch. There are cracks everywhere! I think I will not repair it, I ll just leave it as is.



    Till next time
     
    Vaddoc
     
  12. Like
    vaddoc got a reaction from AnobiumPunctatum in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    Dear all
     
    Thank you for your likes. 
    Indeed Bedford, there are some tasks in model building that are certainly therapeutic!
     
    So the first bunch of nails came out just about acceptable, still trying to standardise the process and solve issues.

    However, from then on things went much better and lovely tree nails produced

    This is about 2000 nails. I ll make another 1000, and since I am at it I ll process that slice of cherry for future use. Then I ll be ready to start replacing screws.

    I had make a thread on making nails, I ll update that as well.
     
    Regards
    Vaddoc
  13. Like
    vaddoc got a reaction from AnobiumPunctatum in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    Another quick update
     
    I started steaming and installing the ribs. As expected, beech responded wonderfully to wet heat becoming as pliable as boiled spaghetti. My steam box is working great and in no time I had bent half of the ribs.



    I made a simple spacer to make sure the rib is placed at equal distances from the frames


    Then I started screwing the ribs to the planks. 


    Regards
    Vaddoc
  14. Like
    vaddoc got a reaction from AnobiumPunctatum in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    Dear friends
     
    Planking is finished! But what a difficult boat to plank!
     
    With great difficulty I managed to scrape a few moments here and there to work on the boat. My 3D plans I am pretty sure are correct, but I think they did not transfer that well to wood as some of the lines looked a bit wrong. In any case, with a lot of eyeballing and using the 80 - 20 rule, it all came together. But it was not easy!
     
    It is not only that the planks need to bend and more importantly twist a lot, it is also that the largest distance keel to sheer is near the bow and not midships. On top of this, batens cannot really be used due to the very curved bow. The scarfs also made a fair plank curve difficult. That was a mountain to climb. 
     
    My planking I think is more or less correct but if I was to build this boat again, I would change the run of the planks a bit at the bow.  A few photos:







    Perhaps the planks could end a bit lower at the bow but I do not think this is too significant, there is plenty of room.
    Another issue is that gaps have appeared between the planks. The wood database mentions that beech has large movement in service and indeed, the planks have shrunk considerably after they reached their moisture balance.
    I will use filler but I cannot sand the hull just yet, the screws need to go which means all the ribs need to be installed, the temporary frames to be removed and all the screws exchanged for tree nails.
     
    So we now move on to the next stage: steam bending ribs! And also making a few thousand tree nails...
    I started cutting parts of the frames to open up the space



    This is as far as I was able to get, at least I managed to not go into hibernation.  But I am really sorry I have not been able to keep up with your logs and updates. 
     
    Till next time
    My very best wishes to all
     
    Vaddoc
     
  15. Like
    vaddoc got a reaction from AnobiumPunctatum in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    A quick update. Little progress due to fevers and aching throats with the whole family out of action. Not Covid!
    A few pics, I think it is going reasonably well.





  16. Like
    vaddoc got a reaction from AnobiumPunctatum in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    Many thanks to all!
     
    Things move on slowly. Although planning the planking was easier than the launch, getting the shape of the planks particularly at the bow is a bit tricky as the planks follow a large curve but also twist along the axis a lot. Also, the planks absolutely need to be steamed (or boiled for 30 sec in the kettle as I ve ended up doing) to be convinced to bend into position. Then, they also need to stay clamped overnight to retain the shape but also to dry and return to the original dimensions. Beech swells up a lot when boiled!
     
    My fore and aft frames are wrong and material needs to be taken off. This is surprising as I really thought my CAD plans were very accurate. I think however I know the reason. I believe the transom for some reason was made a bit more narrow in its bottom half. Not sure about the bow but then again I was never happy with the shape of the first two frames.
     
    It does not matter though, the planks very nicely show the natural curve so that that material can be chiselled away from these temporary frames. The steam bend ribs will just follow the curve of the hull later on.
     
    Enough talking, a few pictures:











    Till next time
     
    Vaddoc

  17. Like
    vaddoc got a reaction from AnobiumPunctatum in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    Dear all
     
    Many thanks for your likes and good words!
    Planking continues, I am making an effort to get the planks to sit nicely without big gaps. It seems to be going well so far and the most difficult planks are behind me. I did not have to remake any plank, they all came out fine on the first attempt. 
     
    One thing that surprised me was the amount of adjustment I had to do on the frames. The two more forward and the two more aft frames had to be trimmed quite heavily, despite my CAD drawings looking good. I am not sure why, however: the two forward frames were the ones I had problems with at the drawing stage and I suspect I may have sanded the bevels at the Transom wrongly. 
     
    It does not matter though as the planks do act as batens and show where wood needs to be taken off to have a fair curve. I think it is all fixed now.
     
    A few pics:
     
    All planks up to the level of Transom finished. The next plank sits at an angle at the transom and needs extra care to sit handsomely.




    These are the paper templates for the next plank. 

    And the process is repeated. This is a difficult plank but I think it is coming out fine and fits well with the previous plank on both sides.






    This is how I steam my planks now, I just stick them in the kettle for a few seconds and then immediately place on the boat. The beech will take any shape with ease.

    Till next time
     
    Vaddoc
  18. Like
    vaddoc got a reaction from AnobiumPunctatum in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    Dear friends
     
    Due to increasing life commitments it's been almost a month since my last post. Unfortunately, I also did not have any time and more importantly peace of mind to visit the various very interesting logs I 've been following - I will try and catch up. However, I found some scraps of time to visit the shipyard and made a bit of progress.
     
     In the last post, I had divided the hull to three zones. Excluding the very curved bow, this hull seems to be much easier to plan that the Launch. I simply used the planking fan diagram to divide the zones into plank widths at every station. I used a baten to figure out the plan ends at the bow and stern. I have decided to scarf the planks so I do not care how much spilling will be needed and how curved they 'll end up to be. The final fairing of the planks will be done during the actual planking but I hope my lines are not far off.






    It is very difficult to capture the run of the planks right side up, due to the size of the boat but they look ok


    But now it is clear that this boat will be very difficult to do lapstrake. I am concerned that this curved bow will cost me my sanity. I wonder whether it would be better to do a carvel planking and leave the lapstrake for a future boat with a more friendly bow. Decisions-decisions...
     
    For now, I started making the first template, for the garboard plank. Initially I thought to do it in 3 pieces but then realised it makes no sense to have so many scarfs - one is plenty, giving a length of 3 to 3.5 m per plank. The last photo shows the pieces for the aft segment of the garboard-they still need to be connected.



    I have the feeling that the garboard should be a bit wider but I am not going back, it will be fine. Also, I need to figure out a way to scarf the planks. It needs to be reproducible and reasonably easy.
    Also, for this boat I will sand the planks to shape, and will put more effort to have minimal gaps.
     
    Regards
    Vaddoc
  19. Like
    vaddoc got a reaction from AnobiumPunctatum in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    Some more progress, time for another update. Things are getting now a bit complex, I ll try to explain as best I can
    I have been able to work on and off on the boat so far but this is now becoming increasingly difficult, for the next few months, I ll be working 6 (and a bit) days a week so I expect things to slow down to snail pace.
     
    First of all, I decided to lighten the frames significantly. After the planking is completed, I will need to install steam bend ribs in between the frames and simply there will not be enough space for my hand to fit in. So, I cut large pieces off but left two cross beams, one at the base and one mid-frame that will be easy to cut off later on with the dremel wheel. The frames are still very solid.


    Next was the big job of cutting the rabet and shaping the hog. Now, this was properly difficult.

    It is impossible to follow the lines in the printed templates due to the large tolerances of my work but I am not too far off either. One interesting thing though is that the boat seems to have corrected my draft error. In my plans I had made the rabet a curved line but now it seems to have flattened.
     
    I started cutting the rabet mid ships where the planks meet the keel almost vertically, still however it made a difference in the fit.

    First photo is fit without rabet, second with. Difficult to capture but it is better.


    I then took a break to clean and sand the transom as it will soon need to be fitted. Lovely solid piece of pear wood.

    Then I thought I wood install the sternpost knee. This is screwed and glued.


    In the photo above I have also added some wood next to the knee, cutting notches for the two aft frames. Let me explain why:
     
    It is very important for the garboard plank to be fully supported along its bottom edge. The rabet is not enough, this is why the hog is needed to add more supporting timber. However, I made two mistakes.
    One is that I did not make it long enough. It should extend from the sternpost to the stem so that after bevelling, it will support the plank for all its length. So, I am adding wood to the stern and will do the same for a short distance at the bow.
    Second mistake is that I did not make it thick enough. Putting the bevels, it gets very thin. So the pieces that I had screwed on top of the keel, thinking they will be just temporary and used to hold the frames in position will need to be permanent. These will also help with the ribs later on as their position on the keel will be already defined.

    I have replaced the pieces that will not be used for gluing the frames, the ones that will be sacrificed are marked with an X, these will be removed with the frames after planking and replaced with nice wood without screw holes.

    Then I cut the rabet. Forget about plans! It was done with just eyeballing the angles and using small pieces of wood. 



    This is where more wood needs to be added to support the gardboard up to the stem edge.

    I tried a piece of 2 mm cardboard to see how the planking would go. It looks ok!

    Then with a big push I finished the rabet. A bit more material needs to be removed from the sternpost



    Now, another task was actually to reshape and sharpen my 4 mm chisel. So far I have been sharpening it free hand but now the bevel is so curved that it affects its function. Now, a few years ago I had made a simple honing guide with scrap wood, metal and bearings. I dug it out and used it. Perfect results! The next photos show the jig and how curved the chisel was. Since I ve honed it to a mirror finish





    There is also another thing that is troubling me, the wood I chose for the planking. I chose 2 mm beech. For the Deben I had used 2 mm maple which was perfect and very pleasant to work with, easy to cut, easy to shape and bend. However, the beech I received is much harder and resists bending plus it is 2,2 mm instead of 2. The planks will be cut with a knife so I expect a big struggle. I hope at least that the wood will respond well to steam bending (it should really being beech).
     
    As Brexit is getting much closer I put in another big timber order from Germany. I will have enough lovely wood to last me for years, pear, beech and cherry. I hope it will not rot or cup with the huge variations in temperature and humidity we have hear in Britain.
     
    Regards
    Vaddoc
     
  20. Like
    vaddoc got a reaction from AnobiumPunctatum in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    A bit more work done and time for another update.
    The boat is progressing very slowly. I cannot work as often as I would like and It takes me a while to remember where I left things, it is a pretty complex boat. Also building (kind of) the Chapelle's boat at the same time is not helping much...Still, some real progress made today.
    First of all, I printed out the patterns for the bow and stern to check how close to the CAD designs the wood pieces actually are. Happily, they are very close.
     






    I then finished the transom. I thought of leaving wood on for a safety margin, as I think is standard practice in actual boat building, however it is much easier to sand the transom now.


    I then glued and screwed the sternpost to the keel. I first drilled 0.7 mm holes to the keel, then taped the sternpost to the keel and hand drilled the rest of the way in the sternpost. Then I counterdrilled the holes in the keel to accept the head of the screw and screwed the 2 pieces together, with PVA in between. The joint is rock solid, the holes will be filled later on.





    The procedure was repeated for the stem but here I hit a snug: The keel will need to be notched for the rabet and might hit the screws if placed laterally. So I drilled new holes, this time at the midline. The stem looks like Swiss cheese but I ll fill the holes later on.

    Then, I made again the hog or apron as the previous piece had some dents. Now, I had to figure out a way to make sure the frames are correctly placed/spaced but also that the keel is secured to the frames but in a non-permanent way, so that the frames can be removed later and replaced with ribs. The way to do this will be to screw wood pieces to the apron and glue the frames to these pieces. Then unscrew these when it is time to remove the frames. So here it goes:
     
    The previous apron was cut up and wood inserts were made to go in between the rib spaces. The sides that will be epoxied to the frames were marked. Then these were lightly glued to the paper template of the apron


    Now, the keel has a slight bend laterally so i used some clamps to bring it in line with the apron..It straightened a lot


    Next the filler pieces were removed, the paper template removed from the apron which was then sanded clean. Then the pieces were screwed on again and the assemble glued and screwed on the keel



     

    This did not go as well as I would like because the apron, being very wide and only 2 mm thick, cupped from the liberal use of PVA. I do not think this will be a problem as it could uncup when dry but either way, a lot of it will be chiselled away and it will be invisible under the floors.
     
    Regards
    Vaddoc
  21. Like
    vaddoc got a reaction from Mirabell61 in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    Dear friends
     
    Time for another post, some progress but also some unfortunate findings. Lets start.
     
    So, there is an urgent need for the boat to have some structural support but it needs to be built from the bottom up. So, the floor needs to be installed.
     
    I had previously cut the floor supports but I found some were off and needed adjustments or replacement. Finally they were epoxied in place and coated with Tung oil - for no reason at all really!
     


    However, It was then that I noticed a rather big issue. The planks have pulled away from the ribs, the glue in the tree nails failed - but also the pressure from the planks must have been pretty substantial.
     

    I do not think this can be fixed without disassembling the boat and in the end of the day, it does not bother me much. So on we go.
     
    Next, I did some work at the gunwales and attached the stringer and the breast hook.




    So far everything is screwed, later on will be replaced with tree nails.
     
    Next, it was time for the false stem to be installed. Again I had to make adjustments but I got a good fit. I used thickened epoxy and it came out pretty good. Especially the joint with the planking, which in the past had caused me headache, came out also fine.



    Ok, so far so good. Next it was the floor boards. This took a bit of work and some head scratching but actually came out better than I hoped. I am not sure if it is historically accurate but we do need a floor to walk on - so here it is.

    And with some Tung oil on




    All the screws need to be replaced with tree nails, so time to make a few hundred. I will be using the last of the cherry wood I saved from the fire wood pile 10 years ago.

    Cutting one more slice was difficult, this wood is very hard
     

    This wood is very dry and needs to get some moisture before we can drill the nails out. The slices are now submerged in water.
     
    Till next time
     
    Vaddoc

  22. Like
    vaddoc got a reaction from AnobiumPunctatum in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    Ok, a quick update.
     
    At this time, I have no idea how to built the rest of the boat. Unfortunately it will not be historically accurate but at least I ll have fun building it!
    Now, today I sat to make a few thousand tree nails, I have to replace lots of screws and I ll need more as we go.
    It actually went very well, a short video follows showing how fast they can be made with the needle method. This tree nails are about 0.7-0.8 mm, maybe about 1 cm long. This wood is cherry - very hard.
     
     
    There must be about 1500 - 2000 nails there

    When the sleeves for my drum sander arrive, I ll sand the back and release the nails. But I will sit tomorrow and make more, my set up is working well and I should take advantage of it.
     
    Vaddoc
  23. Like
    vaddoc got a reaction from bruce d in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    All done! I actually find making tree nails very therapeutic, calms (or numbs) the mind down.
    No excuse now, back to the boat, although I feel like walking in the dark - not sure at all how these things were made. 
     
    A final picture with the 4000+ nails - about 0.7 mm, very hard wood. If you ever go down this road, if you get a set up that works well just make as many as you can,

  24. Like
    vaddoc got a reaction from AnobiumPunctatum in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    All done! I actually find making tree nails very therapeutic, calms (or numbs) the mind down.
    No excuse now, back to the boat, although I feel like walking in the dark - not sure at all how these things were made. 
     
    A final picture with the 4000+ nails - about 0.7 mm, very hard wood. If you ever go down this road, if you get a set up that works well just make as many as you can,

  25. Like
    vaddoc got a reaction from JpR62 in 21 ft Yawl Longboat for a Sixth Rate by vaddoc - FINISHED - Scale 1:10 - Plans from the National Maritime Museum   
    All done! I actually find making tree nails very therapeutic, calms (or numbs) the mind down.
    No excuse now, back to the boat, although I feel like walking in the dark - not sure at all how these things were made. 
     
    A final picture with the 4000+ nails - about 0.7 mm, very hard wood. If you ever go down this road, if you get a set up that works well just make as many as you can,

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