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Everything posted by iMustBeCrazy
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Thanks Tim. To finish off this transom a strip the thickness of the planking is glued to the edge of the transom. When both sides are done a second MDF transom the same size as the first will be glued inside the first creating a step (or rabbet) so that the plank ends will but against the trim as in this mock-up.
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First, a couple of shots that I left out the other day. The rabbet. And tapering the spine, from zero at the bearding line to just under the thickness of the planking at the rabbets (keel and stern post). Yesterday my band saw died (it was only an Aldi cheapie). Luckily I had planned for that and had a spare (same but cheaper, bought on sale) but I still had a lot of setting up to do. The build restarted with the transom/s. I will be building two, as built and easier. Easier first: 1st I cut out 2 3mm MDF transoms. Like the one on the right, the other bits covered by paper are the trims for both methods. Next I made a 'raft' from 6.6mm x 1mm Huon Pine. Glued (rubber cement) on the template and cut it out. Glued the 'raft' and some trim I made earlier to one MDF transom. Cleaned it up a bit (look at that grain, perfect size). Ant took a gratuitous photo of the model. It's not finished yet, more to come. I've also done more work on the drawings, coming soon.
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Just one of those learning things. With photos of curved surfaces it isn't easy to tell so it was just a caution. basically, the sill is the same distance above and parallel to the deck, the head is the same and the jams (sides) are perpendicular to the keel. This does often give trapezoidal ports. Do some tests and on the model, start lighter. You can darken it with another coat if needed.
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Well, it's been a long road getting here but I've laid the keel so to speak. My Great Grandfather sailed as crew to Adelaide Australia aboard Lapwing in 1850, hence the interest. I've been attempting to create drawings of her for some time https://modelshipworld.com/topic/23486-lapwing-1816-revenue-cutter/ and have reached the point where cutting wood helps me with the drawings and vice versa. So it's time for this log. I will attach a PDF of the drawings here and replace the attachment with newer versions as I go along. Lapwing Drawings V1.0.pdf Drawings, Version 1.0 incomplete but should make a hull minus the stern and counter. Please let me know of any issues. First issue, moulds 2 and 4 have the labels swapped, 2 should be 4 and 4 should be 2. Second issue, transom needs to be reworked Meanwhile: In the title I said 'PoB (mostly)', eventually there will probably be a PoF version and sometimes I will try that out in this build. I will also try a more simplified when I do something more complicated than needed for PoB. Such as the keel. I certainly overcomplicated the keel for this build, several pieces scarphed together, milled rabbet and a keelson that gets mostly cut away. There are easier ways, delete the keelson and add it to the spine (the drawings now show this) or cut the rabbet out from the keel completely and add it to the spine. Both of these methods require some bevelling on the spine. I will add drawings later. I could have sworn I took more photos of the keel construction but......... Cutting wood: Note: The 'False Keel' is now referred to as the Spine. And test fitting. End of first instalment. Thanks for visiting.
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Lapwing 1816 Revenue Cutter
iMustBeCrazy replied to iMustBeCrazy's topic in CAD and 3D Modelling/Drafting Plans with Software
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Lapwing 1816 Revenue Cutter
iMustBeCrazy replied to iMustBeCrazy's topic in CAD and 3D Modelling/Drafting Plans with Software
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Looks fine to me but the straps will all be pointing to a spot up the mast about 54 feet above the deck. The Lapwing drawings are possibly wrong here except there were probably no clearly defined wales (other than by a coat of paint) just a thickening of the planking. (My Lapwing will have wales despite this). Add in that Speedy was built 10 years after Lapwing and some changes are certainly possible. This is one of the Vigilant class (enlarged Lapwings with 2 extra guns) showing the shrouds moved.
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Lapwing 1816 Revenue Cutter
iMustBeCrazy replied to iMustBeCrazy's topic in CAD and 3D Modelling/Drafting Plans with Software
These bits are done I think. I cut some wood and they seem to be going together alright. I mocked up the stern area and found out that a flat stern wouldn't work (and to a lesser extent a flat transom). So, back to the drawing board. Curved stern and timber transoms. After MUCH stuffing around I came to the conclusion that the stern is not just curved but is a section of a cone! The curve at the rail is tighter than that at the counter. The following image also shows me trying to work out the outboard ends of the transoms, first with a flat bevel and not with, hopefully, correct curves. -
Lapwing 1816 Revenue Cutter
iMustBeCrazy replied to iMustBeCrazy's topic in CAD and 3D Modelling/Drafting Plans with Software
A Christmas update, currently working on an new rendition for a possible PoB but ran out of time today. False deck and false keel are probably done, moulds (bulkheads) are mostly done, keel needs a little 'fettling' and just getting started on the stern. Merry Christmas everyone!
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