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SJSoane

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Posts posted by SJSoane

  1. Hi Gary,

     

    Your idea of battens is brilliant. It helps see the curve better than any other idea I tried,  it provides a solid surface to check the upper curve of the planks against while sanding them to a final shape, and a firm clamping surface for the final installation. I will definitely use this idea for the upper works.

     

    Hi res photos are uncomfortable; I admire Ed even more for posting these all the time.  They show more than the eyes can see, and they reveal that one's craftsmanship is not as good as one thought. A little humbling. Maybe I can figured out a resolution for photos that exactly matches the level of detail that I can see without magnification...

     

    Looking forward to seeing your progress on the Alfred!

     

    Mark

  2. Hi druxey,

     

    A few years ago in Denver, I put a humidifier in the shop and it didn't seem to make a huge difference. But I did manage to start rust on tools, so I quit. Moving to Montana certainly has helped with higher humidity. Maybe the Admiralty models did not have this problem because it is more reliably damp in London more of the time.🙂

     

    My posted picture raises a new question that I have not yet faced on this project. This plank is cut by the gunport. I started filing to fit before installation, and then it occurred to me that I ought to be using the gunport itself as a guide for filing the piece to final fit after it is glued in. This will be the same situation with all of the planking when it hits the sides of the ports. Are there any best practices for filing to the port without accidentally filing the side of the port itself? Masking tape on the inside faces of the ports?

     

    Mark

     

     

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  3. Hi Greg,

     

    I am like an aging film star; no closeups, soft filters on the lens required!

     

    But in a Hollywood-like expose, here to reveal all, is a closeup of the plank I just glued one, before sanding. You can see all my dark secrets.  The re-drilling of the temporary batten, the stain on the hull that has been there for 10 years and I have no idea where it came from, and most important, the seams opening up between frames in places.

     

    These seams open up in the winter, with the lower humidity, and close in the summer. This is a classic problem of cross grain construction, where the wood expands and contracts much more at right angles to the grain than it does lengthwise. I measured this seasonal change at 3/16" to ¼" over the length of the hull. Good wood construction argues for avoiding this, or using slotted screw holes on wood at right angles to the grain; otherwise, the construction can tear itself apart.

     

    This is obviously not possible in this project, with deck clamps, wales, spirketting, planking all glued on at right angles to the frames. But several centuries of this construction methods seems to have worked, and I hope it will work for me. The humidity shifts are not nearly as severe here in Montana as they were in Colorado, so  I see less annual movement already. And cross fingers, the planking above the wales still to come should cover up my other dark secrets...

     

    Best wishes,

     

    Mark

     

     

    wales close up-1.jpg

  4. I am making steady progress on the wales. My old clamps are proving quite serviceable for this; I have started to run them through gunports as I get further astern and they no longer reach from below. The last photo shows why Gary's idea of a batten is such a good one. There are numerous little pieces around the pierced gunports, and I can see they will easily go astray without a constant guide from stem to stern including going over the gunports.

     

    Mark

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  5. Hi Gary,

     

    I did not think this through many years ago, when I got all exciting about putting in the gundeck before messing with the wales. I can see the value at this point of doing the wales first, since my framing system does not easily allow of clamps above the wales. But there is always a way, if only we stop to think about it a while!

     

    Mark

  6. Thank you, Marc, for your words of encouragement, and I enjoyed your tag line of "we are all works in progress, all of the time." Applies to us and our models.

     

    Once I rounded the bows and began placing planks further aft, I realized that the wale dips below the lower gundeck at midships; and therefore, my clamps from above would no longer work. So I rummaged through my box of old tools, and recovered the clamps I had made almost 20 years ago to clamp up the growing sandwich of frames in the admiralty framing system.

     

    I ran these through the open frames athwartships, and they worked perfectly to clamp from below. I just have to be very careful not to nick the frames when I pass the threaded rod through. I wrapped them in tape to help avoid the worst damage.

     

    Mark

     

     

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  7. Hi Sailor,

     

    As John points out, the hooks give greater strength to the wales, preventing them from sliding fore and aft relative to each other. As I understand it, the ships tended to droop at the head and stern--this is called "hogging"--due to the greater buoyancy at midships relative to the two ends. The wale curves up to help counteract this hogging. The wales are in tension, pulled along their lengths, to resist the hogging. And so the hooks help keep the wales from pulling apart along their lengths when they are under strain.  

     

    Even on the model, these provide surprisingly effective longitudinal strength. I understand the hooks were only used on larger ships, presumably due to the greater forces at play on a longer hull.

     

    Mark

  8. Thanks, Mark, for the kind comment. I continue to be inspired by your phrase, "The shipwright is slow, but the wood is patient." That applies to me big time! Even with more time to commit to the project, it still seems to take me forever to get each piece on the hull.

     

    And thanks, Siggi, for the update on the collections in London. It sounds like they might finally do the right thing and put more of that priceless collection on display. And I look forward to seeing your new project, the 60 gun 1745 establishment. Will it be a full hull?

     

    Best,

     

    Mark

  9. Thanks, Gary and druxey, you both helped me get this far! Håkan, although I am only a few months into retirement, I highly recommend it. A friend described retirement as this: "remember a sunny, summer day during your year between 8th and 9th grade (12-14 years old). That is retirement".

     

    Mike, good question about highlighting the joints. I have gone back and forth on this over the years, wanting to show off the joinery, but also thinking about the effect of scale. Looking at a model at 3/16"scale is like looking at the real ship from a good distance away, where joints would not show prominently, if at all. For the same reason, I have been using tinted colors so far, to keep it from looking too intense. At a little distance, a real ships colors are more muted due to the atmospheric effect.

     

    My boxing joint at the foot of the stem is an example of no highlighting (2nd photo). However, I did put some pencil graphite in the joints of the capstan step (3rd photo). I may do more of this.

     

    But for the wales, I think it will not show anyway. Looking at the 2nd model of the Bellona (shown on the cover of Brian Lavery's book below), the wales are pretty black and uniformly smooth, even with the more muted colors on the gunports and the fore bulkhead. I considered Ed Tosti's solution for his Naiad, which was a dark brown color, but I fancy staying closer to the 18th century model I am emulating. I am taking Ed's advice, and putting together a test panel to try the black stain on the joinery, to see how it looks before settling this altogether.

     

    So how will I feel if I put all this work into the joinery, and it does not show except very close up? It is a little like all of the great detail that many projects on this website put into lower decks, knowing that they will never be seen again. At least the ship modeler knows the details are there!

     

    I am open to thoughts about this.

     

    Best wishes,

     

    Mark

     

     

    The Lavery book it at: https://www.amazon.com/Ship-Line-History-Models/dp/1591141877/ref=sr_1_1?ie=UTF8&qid=1516232652&sr=8-1&keywords=The+Ship+of+the+Line%3A+A+History+in+Ship+Models

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  10. The first planks of the wales are on, so far, so good. They are a little oversize in thickness to allow for leveling later, but the hooked joints are tight. These were the most challenging pieces I have installed so far on this project, with compound curves and tight tolerances on the hooked joints.


    Mark

     

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  11. I forgot to mention, thanks Siggi, for the spectacular photos of bows. These are the kinds of images that keep me going, because I am reminded just how beautiful these ships and models are when they are completed.

     

    And it looks like more models are now on display at Chatham and Greenwich? The last time I was there a number of years ago, there were very few compared to the massive numbers in the old display at Greenwich before the museum was renovated. I had pretty much given up on Greenwich.

     

    Mark

  12. After recalibrating my gantry for measuring off the sheer drawing, I decided it would be prudent to re-plot the wales, just in case things went astray during the move.

    While I was at it, I re-thought how to attach the batten above the wale, for more accuracy. I had previously plotted points the thickness of the batten above the wale, so I could see the points from above while attaching the batten (too hard to look for points under the batten, in the shadow). But this proved to be inaccurate; the batten itself was not completely the same width along its length, and I had now plotted more points against other points, allowing errors to creep in.

     

    So, instead, I drilled holes at the plotted points at the top of the wales, which I could see clearly without the battens in the way. And I then put small nails into the holes, using these as stops against which I could very accurately hold the batten while drilling and fastening it.

     

    This was a reminder to me that--at least for me--registering one piece against another is going to be more reliable than free-handing.

     

    Mark

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  13. Mark and Ed, I missed your comments before I just posted above.

     

    Ed, I take your advice to heart; attending rigorously to the drawing is going to avoid any visual ad hoc adjusting that will later get me into trouble. I am also reassured that the wale appears to be parallel to the top of the hull right at the bows, since that was also carefully plotted from the sheer.

     

    Interestingly, as I tried to figure out why my plotting on the hull was originally erroneous right at the stem, I double checked my means of measuring. I had been using a gantry like yours to measure from a set height above the hull. But I unfortunately discovered that in my recent move, the gantry came out of true. The top of the gantry is not completely parallel to the base, and sheer drawing relationship to the top edge of the board has changed slightly. I don't know if this is the increased humidity, or things got knocked, but recalibration is definitely necessary!

     

    Mark, I see what you mean about the original Bellona model. Yes, they did leave off the topmost, foremost strake, I believe to avoid running into the temporary batten in this demonstration model. So I am definitely working to the top line of the wale taken from the sheer drawing, and I will be planking with four strakes in the wale. And it is a joy to be able to work on this more fully in retirement, although I still don't get as much done as Ed does in a day. He sets a standard to which I continue to aspire!

     

  14. Thanks, Gaetan, Siggi and druxey, for your thoughtful help with this question. I worried in the middle of the night, because all of your examples, and my own of the Bellona, show the two wales coming to the stem at an acute angle, not as a horizontal line as my previous photo showed.

     

    So after more careful measuring, which continued to confirm my location, I realized that it had to do with the angle of the photo. As I show below, dropping the camera down reveals that my wales also come to the stem at an acute angle.

     

    And then I realized that the only way the wales could form a horizontal line from one side of the stem to the other would be if the bows were a perfect hemisphere at the stem. But since the hull is slightly pointed at the stem, the wales will have to form an acute angle.

     

    Mark

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  15. Hi Gaetan,

     

    Yes, the wale does make a double curve. i confirmed this more horizontal arrangement with careful re-measuring against the sheer, and also checking against the photo I took of the original Bellona model, where you can see the top of the wale on the port side is just about horizontal when it joins the stem.

     

    It is particularly interesting that the French wale you show definitely angles upward in comparison. This is all the more interesting because I understand that the influential Bellona design was derived from a captured French ship. I wonder if  the original French ship had a sloping wale, and if the British adapted the French design to their own traditions in some places.

     

    Best wishes,

     

    Mark

     

     

     

    zOBJ_Bellona_20111208_524.jpg

  16. Thanks, druxey, you were right, the point at the stem had crept up. Here is the batten with the corrected curve.

    Gary's recommendation of a batten against which to set the wales is really proving to be a great idea. I was able to use it to accurately spile the topmost, foremost plank, and this showed me that there was greater curve on the upper surface than I had previously drawn (my CAD drawing had assumed, I realize in hindsight, that the surface was completely vertical, and this is not the case). The last photo shows how much the upper plank curves.

     

    It just goes to show that there is no shortcut to reliable techniques. Set a batten, and spile the planks, set a batten and spile the planks, repeat until this lesson is never forgotten! 

     

    Mark

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