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Ian_Grant
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Everything posted by Ian_Grant
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George, I didn't know there was a naval museum in Chania! Too bad we were so focused on hiking the Samaria gorge. Next time! Our local Greek restaurant has a lovely framed poster of Chania harbour with the lighthouse and all the restaurants along the quay; fond memories! -
Bill, the u-shaped thing is a kevel to belay lines with large pull, for example a main sheet. I have the old instruction sheets.
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Yes, if their presence was suspected, an explosive charge dropped into the water would be very bad news for him.
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Yes, the Ottawa Library and the US Embassy (??!) collaborated to open a makerspace which is a room called the "Imagine Space" which has two laser cutters and I think three 3D printers. It just so happens to be at the branch nearest us. The laser cutters handle max sheets of 12"x 24" and 18"x 24" respectively. I also saw someone using a pressing machine to make buttons ie the type with a metal back and a plasticized picture on the front that you pin to your clothes. Someone else appeared to be doing something with cloth material; wasn't paying attention. Clarification: the galley keel was manually jigsawed from my 1/4" plywood scrap.
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Thanks Glen for the fly tying information. And your sails are great!
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Glen, that ship is outstanding! Would fly-tying thread work for ratlines on a 1/150 ship or is it too thin? Asking for a friend. He knows nothing about fly fishing - is it easily tied into compact knots? What kind of glue to lock them?
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Bless you!!
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I decided to slice up my carved half hulls anyway. Traced those for the bow onto paper, scanned it, and imported into InkScape with the plan being to copy each trace then mirror and add as the other side (to guarantee symmetry), and then draw in the notches for stringers. But I got lost in all the intricacies of path and node editing (don't ask!). Decidedly not my cup of tea. I went to the library with a couple of basic questions for the people there in the "Imagine Space"; a girl showed me a bunch of stuff with fingers just flying over function keys and mouse buttons. Whew! I think she could probably do what I want to do in half an hour but on returning home I found I was just getting angry at it. Even with a large book about InkScape at hand which I borrowed from the library, but the author just dives right in. It's more like a reminder for experienced users of functions and keys, than a beginner's primer. Plus I'm a computer idiot. So I'm just going to draw my bulkheads the old fashioned manual way, and scan them in for the laser cutter, which will at least save me the trouble of jigsawing them all out and carefully sanding the contours. The laser will very accurately render any wobbly drawn lines of mine 🙄. Here's a pic of the two-piece keel moments after gluing with some gussets, with the oar mechanism just sat beside it to enhance imagining the final ship. I'm putting lots of ribs at the bow and stern to allow skinning these compound curves in pieces of 1/32" plywood. The sliced-up bow and stern sections are in the background. Note that the oars are sitting far lower than in the finished hull. I didn't pile enough wood scraps under them to raise them to design position. Oops I see I also missed cutting a little bit at the stem. She'll be a big beast - just over 53" from the business end of the ram to the stern extremity - I'm getting excited now!!!
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What about a frogman alongside it? Or am I thinking of midget subs?
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Bill, regarding filling the hole in the knee of the head I would think that although filling after gluing these parts to the hull might be slightly awkward, it would otherwise be difficult to cut and glue in whatever you have in mind for the opening while maintaining the upper and lower parts of the stem in the correct position relative to each other. If your shaped fill was a little off, then the resulting one-piece "complete stem" might not then properly attach to the hull. In other words, you'd need a jig to hold the upper and lower parts of the stem in the correct orientation while you fit the filling. Might as well glue them onto the hull, then they are really and truly "jigged" for you. That's what I'd do.
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For my Preussen's pedestals I used brass "insert knobs" from Lee Valley. They don't have a "bulbous" knob that you show. They're meant to accept a wood disc in the centre of the knob end that you provide but you can omit and just stand upside down. Smallest is 3/8" DIA, not sure how that compares to yours. https://www.leevalley.com/en-ca/shop/hardware/knobs/cabinet/40277-veritas-smooth-rimmed-brass-insert-knobs
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Boy, Bill, you're not letting any grass grow under your feet.............!
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Bob, yes your Transmitter is the TTX300 but what is your Receiver? Are you certain that the Transmitter has power? Do you have a volt meter? It would be worth checking the output of the ESC's BEC (battery eliminator circuit) to verify that the Rcvr is actually being powered. By the way, which ESC were you sent......7320....7325? Also, are you certain you are connecting the 7.2V batteries in series, not just y-harnessing in parallel, for your 12V motors? Again a voltmeter would be useful. You can buy a multimeter for as little as $17USD at your Home Depot. Lastly, I'd call Big Rich and have a helpful chat.
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Bob, I looked at a video about binding your Tactic Transmitter to the Receiver. Is your Receiver a TR325? At any rate all he did was turn both on; should see a red LED on the Tx but nothing on the Rx. Then use a small screwdriver, for example, to press down on the recessed binding button within the Receiver and hold it down for about a full second until it beeps and a solid red LED comes on. Pretty simple; used to be you had to use a "binding plug" which temporarily plugged in to the Rx to indicate to it that you wanted it to attempt to bind. If no joy, check polarity of your three-pin ESC connection to the Rx: black or brown to the outside of the Rx. It's the ESC which supplies power to the Rx via this connection, and in return the Rx sends the speed control signal back through the signal wire. Looking forward to seeing your electrics run!
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So I've seen several people who cut out those panels without damaging them, for re-use. Does it go quite easily?
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Bill, I would think you'd need to have the beakhead and stern plates attached first to make sure the bulwarks are at the proper angle to fit. If you attach the bulwarks first you have no guide as to the tumblehome and then you could end up with a glued joint at the wrong angle. Just my opinion, as you know I've yet to start my SR. Later edit: Or, add the beakhead to have one fixed end, then glue the bulwarks with the stern plate dry fitted and clamped by rubber bands or whatever. My first recommendation above maybe you could end up with the stern plate at the wrong angle to mate with bulwarks. From playing with my kit pieces they all seem to fit together beautifully.
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Bruce, the brown servo wire is the GND and goes nearest the outside edge of the Rcvr. The ESC should have either a black wire or a brown wire too; in either case this is the GND and again goes to the outside. Check these connections before trying again to bind. I don't know anything about Tactic components so can't help you there. By the way, the prop tubes should be solidly epoxied in. There should be no need for caulk, just grease in the stuffing boxes.
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Just pulled out my instructions again; it appears that this deck level is where the gunport openings on the beakhead bulkhead are. The bulkhead is very tall on this ship.
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Aren't there ports about there on the beakhead bulkhead? Or is that higher up?
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Neat idea, Dick! It only took a few seconds of internet browsing to find that I cannot buy contour gauges large enough or with fingers long enough to follow my hull's curves. It would require multiple measurements from different angles which would be difficult to re-align on paper. Because of that I had decided to just slice 'em up. But your idea has my brain gears turning. Will have a think. Thanks for the post!
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Normally props would turn opposite to each other. It's up to you to order a left hand and a right hand prop. Since a single ESC will be driving both motors, just swap the wires to one of them to get it to turn the opposite way. Modern ESC's switch their MOSFET transistors on and off at a rate somewhere in the kHz's. Sometimes in the audible range. I'd have thought a modern 2.4G Rcvr would be pretty immune, unlike the FM Rcvrs of my teenage RC years, but it is still a good idea to keep them separate. You should add small ceramic capacitors at the motor terminals to suppress the switching noise. I have not yet used modern batteries such as NiMH or LiPo; not sure can you just parallel your two to get more amp-hours? Or do you mean they are in series to give you 12V for the motors?
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Seriously, it is a very nice kit of a totally impressive ship. As a bonus she had no cannons to rig. A good FUTURE project.
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Yes, that's how to cut thin aluminum soffit; just turn the blade backwards and it gives a clean edge. And many many little aluminum slivers to pick up. Last time I did this I forgot to turn the blade back around when next using the saw. Couldn't understand why the wood seemed so hard.....😆
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