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dvm27

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Posts posted by dvm27

  1. I struggled with silver soldering for some time until I found a system that works for me virtually every time. First off, the mini torch I was using did not generate enough heat for silver soldering. I have since had excellent success with the Blazer Torch https://www.amazon.com/dp/B017Z8KD3S?psc=1&ref=ppx_pop_dt_b_product_details. More importantly I switched to silver solder paste from Euro Tools. It comes as soft, medium and hard so you can solder adjacent pieces. Otherwise I use the medium https://beaducation.com/products/silver-solder-paste-medium. I also use Battens Flux on the joint prior to soldering but I'm not sure if you need it with the paste. You only need a speck of the solder on the joint and you have to move the torch the second it flashes. At any rate if you're having unsuccessful solder joints more than 10% of the time maybe give this a try. Also, as Druxey has pointed out, it's best to place the joint on a linear plane.

    solder1.thumb.jpg.e2e2b9bcf18b2f488c35ea534827b227.jpgsolder2.thumb.jpg.a4a061e047d1d2f31d39d3911febaaff.jpg

  2. I use 6-32 threaded rod and 6/32 Acorn nut or knurled knob. The rod comes in 12" lengths so it can be trimmed to a custom size. I thread the acorn nut onto one end. You will drill two hoes in the building board that correspond with the holes in the keel. make them slightly larger than the keel holes to allow for adjustments on the building board. Do not tap these holes. Now insert the threaded rods with the acorn nut on the end through a washer, then building board and thread into the keel. continue until the acorn nut snugs against the washer. Mark the exit of the threaded rod where atop the heel and cut flush. I don't glue mine into place as it us helpful to remove the hull sometimes (especially when fairing). I do glue the acorn nut onto the threaded rod once the final position of the threaded rod is determined (using Loctite).

  3. Scratch building is chock full of learning experiences. Hopefully you are using PVA glue which is easily debonded with isopropyl alcohol. May I suggest you prepare a test scarph joint with your tissue paper then debond it with PVA. I'm suggesting this because some papers I tried actually created a black mess during the debonding process and ruined the piece. Of course if you are planning to build a perfect, error free model this is not a concern but I buy my alcohol by the gallons. Also test the finish you propose to use to make sure it doesn't make the tissue paper bleed. Finally, I have found that using thicker tissue paper results in a weaker joint. Perforating the tissue paper prior to gluing the mating segment seems to help this. As well make sure to use treenails or brass fastening to reinforce these joints.

     

    You're off to a great start!

  4. I was fortunate enough to have visited the Museum just before it closed. I felt it was one of the best museums I have ever visited. Had the same thought about the Science Museum in England in the late 70's. At least I am fortunate to be so close to the Annapolis Museum where ship models take center stage thanks to a generous grant from an earlier class.

  5. 6 hours ago, Chuck said:

    In addition..the swivel

    stocks.  Which you will see Greg added but are not shown on the Speedwell contemporary draft.

    I didn't actually notice that the swivel stocks were not on the original model Chuck. But the swivels ("ten 1/2 pounder swivel guns") are clearly noted in Winfield's British Warships in the Age of Sail 1714-1792 as specified for the Cruiser class. Of interest to us modelers is that only enough swivel guns to fit out one side was required. As they were so light they could be carried to the other side as needed.

  6. I use small pieces of index card held together with white glue. Just keep building them using small pieces of card. On some patterns like the mast step I'll have assembled 7 or 8 pieces of card. The unplanked side is a bit tricky. You can either extend the bulkhead all the way to the frame or stop where the planking would have been (leaving a gap). See Chuck's  Speedwell below. As you'll find, it is much easier to leave a gap then achieve a perfect mating with the planking!

    https://modelshipworld.com/uploads/monthly_2024_03/forecastlebulkhead5.jpg.9ce18fb61c7a32f2595493a29fab12d3.jpg

  7. You should cut as close to the line as you are comfortable doing without cutting into the line. I used to leave about 1/16" using my scroll saw then sanded to the lines on my disk sander or oscillating spindle sander. After some practice I'm able to cut to within a whisker of the line and that is sufficient. Fairing after the hull is assembled will blend everything together. As well, I don't bevel the frames (except the hawse and cant frames) prior to installing as over-bevelling even one futtock will affect several frames before and after it.

  8. One of my employees was awakened by the noise of the crash and actually witnessed the collapse. She lives less than a mile away and felt her house shake. I believe Andy is correct in that abutments would have deflected the ship and probably prevented this disaster. I believe they are discussing dredging the channel to make it more compatible with today's modern ships. The Port of Baltimore is seriously outdated and they will hopefully use this tragic opportunity to not only rebuild the bridge but better accommodate deep water ships.

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