Fantastic work, I appreciate your work methods and the willingness to share with us and thus you help us to improve our abilities.I will be there, hope to see you in September.
Today I didn t had much time but could spend two hours on preparing stem and stern.
For these I used my waterlines drawing.
The thickness of the stem and stern is according Witsen 1 duim (amsterdam inch) per 1/10 foot of ships length. For my ship this is ((95/10) × (Amsterdam foot/11))/36 = 6,8 mm.
Comparing to the archological drawings this correct.
The width of stem and stern I determined by adding the thickness of the planking twice. Compared to the top view of the archeological drawings this was correct.
Based on this I have drawn the stem outlines.
I also drew the keel stem connection, in 17th century Dutch called the kinnebak.
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By spreading graphite powerder on the rear of the drawing I tranfered it to the 6,8 mm billet by tracing it with a pencil.
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After cutting it on the small proxxon band saw I check it on the drawing.
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The stern post was drawn in the same way.
After cutting both with the small proxxon band saw I have the outlines of the hull.
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Next time I will double check if stem and stern post can be of one pieces. In principle for this size of ship it could be, but I will double check with the wreck data I have.
The keel I will split in two pieces with a joint before the main mast at +/-1/3 of the keel lenght
Next time preparing the keel and stem and stern joints.
Hi Stephan, I am still looking into this. I have made the complete part as it is easier to shape the complete part. If neede I will remove a small part of it and fit in the new piece.You make the stem out of 1 piece of wood?
It depends on the thickness of the tree and if they can make it in one piece. I work with woodpieces that have a max. width of 28 mm so I had to splice it up.The wreck of the Fluyt Anna Maria looks like two parts on the stem and stern post. However Anna Maria is much bigger.
Yes these where made of a lot of parts, I was thinking about the drawings of Blom or Dik where there was a details drawing. It could also be in Abel Tasman ships where I found. I dive into it too find where.On the Den Helder Pinas the stern post is build of it looks like 3 parts, the stem post seems to be one piece.
A straight forward start, Maarten. Nice you are mentioning the Stockholmer Tar. A deja-vu. A long time ago we used that on the windmill to 'tar' some wooden parts. Now banned for a long time to use. And no modern means that can now serve as a good replacement. But your alternative looks very natural.Based on the wreck data and the witsen drawings I decided to split my stern post in three parts.
First drawing a line to create the biggest part curved with more or less equal width.
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Then the proxxon band saw can do its job.
The part remove can t be reused and two new filler pieces are made to properly fit in.
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Dry fitting the assembly.
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I glue these parts with brown coloured pva to simulate Stockholmer tar caulking.
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See below the black vs the braun pva.
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The brown pva used to glue the parts together on a glass plate.
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After sanding.
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At last I add the wooden dowel to fit into the keel during assembly.
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The keel I make of two parts, a long and a short part to avoid the main mast step will rest on the joint.
The small part will be on the aft side.
I have made the cut in the keel and did not make a simulation joint as there was a week spot in my keel which I now removed.
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The keel joint is 5 times the keel width according to Witsen.
I cut the keel joints with the Proxxon band saw and finished them with a miniature diamond file by hand.
Again glued with brown pva on top of a glass plate to keep everyting alligned.
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Next time finishing the keel and creating the box joint for the stem in Dutch the kinnebak.
Hi Mike thx for the comments and if you are interested in the Pinas which is called wreck E81, you can find a lot of data here. The actual shop was named Samuel and sunk at the end of the 17th century. She was found in the 1960's in a field, this as this part of the Netherlands is reclaimed land now where it was still the sea bottom untill 1924.Maarten, I love your band saw, your work shop and your attention to detail. The photo of the Den Helder Pinas is amazing also. We are all learning so much! Magic Mike
Hi Peter,A straight forward start, Maarten. Nice you are mentioning the Stockholmer Tar. A deja-vu. A long time ago we used that on the windmill to 'tar' some wooden parts. Now banned for a long time to use. And no modern means that can now serve as a good replacement. But your alternative looks very natural.
Regards, Peter
A major step and nice to see: the keel is laid. And it’s important that you found out the problem with the stem post and made the re-do at this time. A solid yard as a base to build, Maarten. And you can slide that base into your car next september.While the glue on the keel, stem and stern dries work on the yard floor continues.
I prepare a 17th century yard. The keel is stacked on blocks of oak.
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On Dutch yards the keel was stacked sagging, curved downward approximate 1/2 the thicknes of the keel. This was done as the bouyancy in the centre of the hull is higher and the keel would be straight while the ship was in the water.
Secondly a Dutch ship had "stuurlast" which means she is deeper in the water at the stern.
This stuurlast I have already set up in my blocks.
I set up the keel on 5 blocks, the rest is filled in when the keel is positioned. The keel is locked in place by adding small board clamping the keel snug fit.
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The result of all of this is every block is different in height and tailor made.
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At stem and stern post a tripod of beams is setup to support the stem and stern post.
The yard floor is finished.
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The keel is placed on the blocks.
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I have made a clamp around the stem and stern instead of nailing the wooden poles directly in the stem and stern post. This as I want to be able to remove it easily.
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Here you can clearly see the sagging of the keel.
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And the top view.
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Next time a knee for the stem post. Fittin all bolts and treenails. Carving depth marks etc.
Hi Christian,Really wonderful progress. Is the jig only for building the model or also later for the presentation?
That is the reason I already started this build, promisses to keepA major step and nice to see: the keel is laid. And it’s important that you found out the problem with the stem post and made the re-do at this time. A solid yard as a base to build, Maarten. And you can slide that base into your car next september.
Regards, Peter
Ok Maarten, now I know why my Vasa incorperated the sloping keel. I never really understood it before, even though she was a Swedish ship she was designed by a Dutch master builder.On Dutch yards the keel was stacked sagging, curved downward approximate 1/2 the thicknes of the keel. This was done as the bouyancy in the centre of the hull is higher and the keel would be straight while the ship was in the water.