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Everything posted by Cathead
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Out of curiosity, did you use glue to stiffen these? Many folks will use a drop of CA or wood diluted wood glue on such knots to ensure that they hold, especially as they don't need to be adjusted. You mentioned gluing the ratline knots but not these, so I thought I'd ask. Looks nice and crisp overall.
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Lots of good tips, Grant, thanks! I did the same thing on my spreadsheet, having it set up to give me the full dimensions of every piece in a reference list, as well as a "calculation box" for entering specific dimensions that I want to check. I'm about to order a digital caliper as my existing manual one isn't fine-scale enough for this project and I think I'll make good use of it down the road. I don't have a lot of experience with fine woodworking, being more of a large-scale builder (I've built a number of outbuildings on our farm and rough furniture, but not anything with precise small joinery like jewelry boxes). So this will be a good way for me to develop finer-scale skills, including chisel work. My wife is excellent at tool sharpening and handles everything from hatchets and loppers to kitchen knives to the cutting blades for our wood chipper, so I'll be putting her to work on my chisels before I try anything! Also, welcome on board, Robert & Brian. I'll try not to keep you waiting too long for more progress. I'm doing a lot of timbering this time of year and I'm not always in the mood to work with wood in the evening when I've been felling and bucking trees all day!
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First step, cutting the deck beams and carlings from maple: And here they are in their loose configuration, before being mortised into one another: I followed @gjdale in making a spreadsheet for converting the plan measurements into scale. Although he made his available to others, I stubbornly made my own so it'd be just the way I wanted it. I set it up to convert full-size measurements into both fractional and decimal inches, since I think more clearly in fractional but decimal will be easier to measure in at small dimensions. Metric would have been sensible, too, and I'm used to it as a scientist, but I still do most of my woodworking and building in fractional inches so I went with what's easier for me, cognitively speaking. Next up I'll find out how good I am at cutting highly accurate mortises at this scale. The great thing about logging my own wood is that I have a lifetime supply of model-scale wood from just a few timber-management leftovers. So making mistakes won't be nearly as much an issue as if I was ordering nice wood from a supplier.
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So those drawings, which you also posted earlier, appear to show that the cylinder timbers are a solid mass of stacked timbers underneath the engines, switching to an open lattice about halfway along (more specifically, two lines of parallel stacked timbers with the engine suspended between). The idea here was likely to provide the maximum support for the weight of the engines and for the vibration and pounding they produce. For example, see the similar arrangement on Arabia here: Those drawings also accurately show how such stacked timbers were mortised into each other for greater strength, as you can see better here: However, one difference between Arabia and your plans is that the former also used stacked timbers to support the weight of the wheels (see below) while your plans show an open lattice below the wheels, which strikes me as a little rickety but I can't say it's wrong. I can't say whether your vessel had the same arrangement below the engines as Arabia, just that it's what the drawings appear to show and that it was a common practice. Don't mean to be critical, I just know you're interested in accuracy and I wanted to ask in case you cared. If you do want to go with this approach, you wouldn't have to tear down what you've done, I bet you could sheath the forward part of your cylinder timbers in thin strips that would nicely simulate solid timbers, especially once the engine room area is mostly enclosed except for the viewing opening. Otherwise it's a clear case of modeler's license and no harm done. Here's a view of my Arabia in progress, which gives a more 3D view of the timber arrangement than the museum photos do (scale has its advantages): You might also contact a few of the true steamboat experts on MSW, like @Roger Pellett or @kurtvd19, who may have deeper insights than I do into engine layout on larger sidewheelers like this. After all, if there's one rule about Western River steamboats, it's that a lot of different designs were experimented with and it's difficult to assign hard rules on "how it was done".
- 236 replies
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- Robert E Lee
- steamboat
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So my stepfather was indeed thrilled and moved by his Christmas half-hull, thanks again to the NRG and @tlevine for developing this. For those who expressed an interest, I just started my NRG capstan build, if you want to follow along.
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This will be my take on the NRG's capstan project, sold as a set of plans to help modelers learn and practice scratchbuilding skills: The project can be completed in Advanced or Intermediate mode, depending on the level of tools and skills the builder has. There are three build logs for this that I've found; the original by @tlevine, one underway by @gjdale and one completed by @usedtosail. If I've missed any, please let me know! My build will differ from those above in three ways. First, I'll be following the Intermediate instructions whereas the other two are Advanced, so hopefully this will be helpful for others interested in that track. I have a Byrnes table saw but not the higher-end mills and other power equipment needed for Advanced. Second, the assumed scale for the project is 1:16 and the builds above are all in that scale, though the instructions encourage builders to consider other scales as learning to read plans and convert measurements is part of the project's goal. So I'll be converting mine into 1:24 because I want to display it with two 1:24 Model Shipways naval cannon dioramas I've built previously: Third, I'll be milling my own wood from material I've logged, milled, and cured on my homestead here in rural Missouri. I'll be using maple, cherry, and walnut, producing a similar color profile to my recently completed NRG half-hull planking project: Hopefully these differences will make this build unique and useful to others considering this really cool project. Thanks to the NRG, and especially Toni Levine, for putting this together.
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Welcome to the forum! I hope you'll keep this updated, I'm curious to see how you go about improvements.
- 8 replies
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- Plastic
- Constitution
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Nice work! I'm curious about the decision to leave the cylinder timbers (the angled wood supporting the engines) as an open lattice rather than a solid stack of beams as on most prototypes. Aesthetic preference or did you find an example of this approach?
- 236 replies
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- Robert E Lee
- steamboat
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It's a nice job for a first build, something you'll be proud to display. Thanks for starting the log and it'll be fun to see how you finish!
- 10 replies
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- Viking Longboat
- Artesania Latina
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A question occurs to me regarding that anchor storage arrangement: did they have to take down the lines running through the stanchions every time they deployed or stored the anchor? Otherwise it doesn't look possible to thread the anchor in there.
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Gotta be careful with your wording on a nautical website; for a second I thought you had a local dealer in Chinese sailing vessels. Model looks fantastic. I've definitely considered the aquarium case idea before, seems reasonable. Can't wait to see the final version. As for the rope fuzziness, when I submitted my Viking ship to the NRG contest, one of the judges at first criticized the fuzziness of my lines, then backtracked to wonder whether it was intentional and/or accurate for the rough hand-made ropes of the period. So that can always be your excuse, too!
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Glad to hear you like it! I was reminded of a bit of advice after using mine last night: the cutter can handle some relatively thick stock, but as you go thicker it gets easier for the blade/arm to deflect and produce a non-square end. It isn't like a miter box where the cutting blade is locked in place. So just be aware of that, at times I've needed to square off cut ends with a file or other tool. Other times I've used the cutter to mark a precise cut and then finished it with a miter saw to be sure the cut was square. Also, change the blades as soon as you feel it's not cutting right. One of the great things about this tool is it's designed to use basic razor blades, not some custom design, so it's easy and cheap to keep sharp. Happy Holidays to you as well, I look forward to this project coming back on the table, so to speak.
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Just don't forget that on many sternwheelers, the heads overhung the wheels for obvious reasons of disposal! So maybe check the wind direction first (not that that means much on winding North American rivers).
- 109 replies
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- Finished
- Artesania Latina
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So that makes sense, but is that the case for something like the image below, which you shared earlier? It just stretches my logical/factual brain to see those right-hand shrouds as being intended to represent the port-starboard mirror image of the correct ones aft of the mast, since they're carefully placed at a completely wrong angle symmetrical to the right ones. In addition, the three forward shrouds are even drawn as combining with what appears to be a forestay before reaching the mast, different from the aft three (oddly, there's no aft stay at all). I realize these aren't blueprints and that art in this period was somewhat abstract, but it boggles and fascinates me to try to understand the mix of detailed realism and perspective inaccuracy. It's like trying to learn a truly foreign language with some recognizable patterns but fundamentally different grammar (like Japanese numbers). ] Not trying to take this thread too off course, I'm just fascinated, and part of the theme here is understanding what we can learn and understand from these images.
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Some of those images seem to show shrouds both fore and aft of the mast, while your prototype shows them only aft. Thoughts as to why?
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To me, one of the significant tradeoffs is how to handle details at scale. The larger you build, the easier it is to get details in scale, but you're also under more pressure to include those details and get them right. The smaller you build, the harder it is to get details in scale, but you can also start eliminating them. Examples in wooden ships could include treenailing, rope thickness, wood joinery, sail stitching, and even just the texture and grain of the wood itself. As for examples of large-scale ship models, here I am a few years ago with a 1:20 model of the Esmerelda at the Museo Maritimo Nacional in Valparaiso, Chile.
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