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Mirabell61

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Posts posted by Mirabell61

  1. Update

     

    today I`m doing the bulwarks handrail from bendable beech stripe 1,5 x 3,5 mm flat. The aft rounding is done with a bending gig in order to bend the strip over the flat side and a pot of boiling water.....

     

    Nils

    DSCI8550.thumb.JPG.bb12a79e61e7fe7b6364d6682b40b76a.JPG

    the front and mid sections are easy because of the slight bend only....

     

    DSCI8545.thumb.JPG.0634bcae50d91d58c52ee88426cb23a3.JPG

    this gig keeps the strip down flat during bending the curve... for the aft rounding

     

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    here the strip is inserted into the gig

     

     

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    for smooth bending the strip was put into hot water for a few minutes

     

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    out comes a smooth rounding over the flat side of the strip. I`m very pleased with the result

     

     

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    fixing the rounding rail to the aft bulwark. It will be shafted to the mid section bulwarks

     

     

     

     

     

  2. Update

     

    fitted a set of overworked oarlocks (thinner wire), also boat cradles, bell, and the first coat of white paint above the waterline. The bulwarks (in boat swing out area) are cut back a bit just like the real vessel. The upper handrails are still missing as well as the deck`s super structure like companionways, hatches, skylights, etc

     

    Nils

     

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    the upper hull has a white-silk finish

     

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  3. 2 hours ago, wefalck said:

    Looking at the anchor pump-spill above, the levers appear to be rather short - the men would need to lean over the spill and would not have a lot of fulcrum. I think the handles should be outside of the spill-heads so that the men can stand clear of them - or do you have images that show the handles to be so short?

    Right Eberhard,

    the reason is that I just did`nt want to make the lever beam my self. The one I`m using ist normaly forseen for a double bilge pump and also the largest I could find. So the crew members would have to arrange with the given circumstances like always in life...

     

    Nils

  4. Update

     

    making the tubes for the anchor chain, chemical blackening of the brass anchor chain, casting the boat halves, two halves of the boat checking out the fit, and ready for glueing together, the cockpit - cover still needs to be cut out

     

    Nils

     

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    the chain is transported over the appr. shaped chainwheel

     

     

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    port for the chain

     

     

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    this is the cast box for the silicone mold

     

     

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    this is the removeable heart for the boats inner shaping. The little distance chucks are only preliminary attached in order to determine the boats wallthickness

     

     

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    here everthing is ready for casting the two-component raisin into the waxed parts

     

     

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    this is the very first cast boathalf

     

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    the fake frame-ends (at inner bulwarks) are included within the casting

     

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    dryfit of two boathalves

     

     

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  5. Update

     

    making the box containment for the silicone mold and casting the mold from semi soft silicone rubber

     

    Nils

     

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    the box must be large enough to allow buffer rubber material all around.

    I used car polish wax for covering the box inside and for the submerging section of the model fot better removal

     

     

    DSCI8503.thumb.JPG.f37a7cf674da1d40d3992ff2f2769037.JPG

    I used up the leftover 2 component silicone I still had from making my boats for Kaiser Wilhelm der Grosse.

    It was just enough silicone for this application ( to the last drop ! )

     

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    taking the halfmodel from the mold, all looks well so far

     

     

     

     

  6. Update

     

    making the boats.....

    I could`nt find suitable double-ender boats in the web, so I decided to make them myself. It would be a 130 mm long double-ended and clinkered little model itself.  I used ply and easy to shape Balsa wood. This will be the model for taking the silicone form from in which I intend to raisen-cast two symetrical halves and glue these together afterwards. The clinker is simulated with double laying strips of self adhesive aluminium tape

     

    Nils

     

    DSCI8488.thumb.JPG.54d344c8ceed5e1be9a27069a071f8b1.JPG

    rough shaping the boats hull half

     

     

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    after final shaping and  sanding over

     

     

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    fitting the rail ( from brass profile)

     

     

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    clinkering

     

     

     

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    Thats the look...

     

     

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    the boats will turn out 130 mm long in scale 1:50

     

     

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  7. Update

     

    Mounting the pinrails that also take up the sleeves for the davits.

    Mounting the side vertical bumper-ails for raising / lowering the boats

    Mouting a short bumpkin through the upper bowpost at the bulwarks and making the bow sprit that will be fixed a bit offset to the bumpkin.

    Trying out if I can possibly make the two boats. The boats are symetric front and aft, so I would only need to make one halfmodel to take a silicone matrix from that. If it works out I can cast  the raisin halves to make two boats from

    Making a gig to taper the bow sprit as well as the top spars later on.

    The total model length ( bow sprit to aft end of mainsail beam) will be 750 mm

     

    Nils

     

    DSCI8479.thumb.JPG.137f804bfb9adadf3d1619d4b33dbec6.JPG

     tapering

     

     

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    tapering simultaniously requires two machines in operatio

     

     

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    tapered bow sprit

     

     

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    preparing for making the (only 1 half) for the boats

     

     

    On 4/5/2022 at 2:10 PM, wefalck said:

    Yes, that’s a point. Somewhere between 25 and 30 cm thickness sounds about right for a vessel of that size.

     

  8. 13 minutes ago, wefalck said:

    Nils, a standard M3 nut is 2.4 mm thick, which gives you about 5 threads for a pitch of 0.5 mm.

     

    However, given the size of the model, I would feel more comfortable with M4 or even M5 …

     

    Eberhard, right I would have preferred M4 in the beginning, but the keel was so narrow, so it would have turned out too thick, also considering both sides planking and sheathing

    Now I have appr. 5,6 mm thickness at the keel, in scale that would be 286 mm on actual vessel keel, which looks quite realistic to me as there is no center-board to be integrated

     

    Nils

  9. 1 hour ago, wefalck said:

    Looking solidlly done - deutsche Wertarbeit ;)

     

    Why don't you use an ordinary nut and large washer ('Karosseriescheibe'). That would be easier to tighten than these press-in nuts.

     

    Eberhard, thanks for your words

    the reason for using the press-in nuts here is merely for the long thread section, whereby the regular M3 nut only has two or three windings in interlock with the spindle. I experienced it once that on the spindle the interlock area was damaged because the force was only unsufficiantly only on two or three windings and they gave way....

     

    Nils

  10. Update

     

    today the standplate (not stained yet) and the two pedestals are made.

    the front pedestal gets a narrow spacer underneath in oder to set the hull waterline horizontal

     

    Nils

     

    DSCI8473.thumb.JPG.8b8478667f5b9c6dfa70ea775287c75d.JPG

    the baseplate is made just like all my stands to date

     

     

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    the upper sheathing waterline is set up absolutely horizontal

     

     

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    the counter of the spindles is done with a upside down press in nut (longer threaded sleeve and a larger contact diameter compared with a regular M3 nut

     

     

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  11. Update

     

    making the sheathing plates fom 0,1 mm thick copper foil .....

    The stb. and port ones require a mirrored poncing. It takes about 25- 30 single plates per sheathing-row on the hull

     

    Nils

     

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    poncing the foil stripes with a self made poncewheel

     

     

     

    DSCI8466.thumb.JPG.6fafba295d6685d437eb5e7e516d16ca.JPG

     

    cutting the stripes off a multi panel pattern. I make about 25 -35 plates from 7 stripes at a time

     

     

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    flattening the stripes from the rear side by rolling over with a glas jar ( is simple and works well )

     

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    stripes after flattening. This will provide complete identical sheating plates 15 x 20 mm afterwards, cutting at the black lines

     

  12. Update

    started with the aft section belaying bank and the pump-spill.....

     

    Nils

     

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    the holes for the belaying pins will be drilled the size later on

     

     

     

     

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    upper part of pump spill fastened to the post that also will take up the aft end of the bow sprit

     

     

     

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    arrangement of the spill on deck

     

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  13. Update

    preparing for how the seaworthy transfer boats can be swiveled out/in with the davits

     

    Nils

     

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    one of the four davits made from brass tube

     

     

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    I made a dummy for checking the geometry how to get the boat swung out and hanging over the shooners side, ready to be lowered to the water

     

     

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    in the swinging area the bulwarks have a limited less high section (outcut). The length of that outcut will be determined also with help of the dummy

     

     

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    swinging operation completed, transfer boat hanging free from shooners side over the water

     

     

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    the two boats will be placed on cradles on deck, next to the bulwarks, and between the masts

     

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    Card template for rudder blade

     

     

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