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PostPosted: Sat Sep 23, 2023 8:52 pm 
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Location: Corvallis, Oregon, USA
It is mind blowing!

I know of a couple other modelers who made their stud-link anchor chains link by link, from wood or metal. It was very time consuming and tedious.

The 3D printed chains are so easy to make, and even at very small scales every link moves independently. It is almost too good to be true!

Phil

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PostPosted: Mon Sep 25, 2023 10:49 am 
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For his HMS Hood EJ Foeth hand built his chain from brass wire, Song carved his from wood. Fir my APA I charged it from styrene, 3D printing ever since! The 3D chain it's very satisfying when one lowers the model chain into a surface and it piles in a very prototypical way.


Last edited by Fliger747 on Tue Nov 14, 2023 12:39 pm, edited 1 time in total.

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PostPosted: Sat Nov 04, 2023 9:42 pm 
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Location: Perth, Western AUstralia
Still alive :)

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PostPosted: Mon Nov 06, 2023 12:01 am 
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Very nice secondary bodies! Perhaps it's photo distortion, but I certainly have had issues with barrel and boom curving. Two ways I had found worked for combating this is to (1) print the barrels vertical (2) especially with masts I make them hollow and then reinforce with piano wire of appropriate thickness. If I am just seeing an illusion pardon my comments.

An ambitious and finely executed project!

Regards: Tom


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PostPosted: Wed Nov 08, 2023 5:16 pm 
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Location: Perth, Western AUstralia
Thanks Tom,

You have a good eye.

Masts I found particularly problematic so I might give the "hollow with piano wire re-enforcing" a try. It would make it lest prone to Drydock Rash as well (Not sure about Drydock Rash, Is that the naval version of Hangar Rash?)

So I printed this banana:

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Soaked it in hot water (not boiling) for about 10 seconds and applied slight pressure, Le voila!

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Not perfect and I might still re-work that a bit, but certainly displaying less bananaristic tendancies.

I found printing at angles makes parts a lot more square and uses far less supports. These hangars came out with distinctly non-flat bottom edges when printed flat but came out much better at 30 degrees.

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PostPosted: Thu Nov 09, 2023 12:21 am 
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" bananaristic" ?

Is that in the Scrabble Dictionary?

Phil

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PostPosted: Thu Nov 09, 2023 8:43 am 
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Hi Phil,

Absolutely, got it off a most reliable source:

Attachment:
File comment: Origins of Bananarism
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:)


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PostPosted: Thu Nov 09, 2023 9:43 am 
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Location: Bretagne, France
Very good job! :thumbs_up_1:

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•Battleship Bretagne 3D: https://vu.fr/FvCY
•SS Delphine 3D: https://vu.fr/NeuO
•SS Nomadic 3D: https://vu.fr/tAyL
•USS Nokomis 3D: https://vu.fr/kntC
•USS Pamanset 3D: https://vu.fr/jXGQ


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PostPosted: Thu Nov 09, 2023 4:33 pm 
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Those anchor chains are delicious, especially if you have the supports just right and they zip off and then collapse in a pile just like real ones! I've tried the warm water trick but without the success that you had, they seem to resume their banana after drying. Maybe your resin is better than mine. As to the masts I have found them to be quite durable with the wire and also not being bent by the rigging. I did however have to run a wire up and down to keep the hollow open while washing and curing as bubbles tend to form and want to block off the passage.

Boats are very nice! Tom


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PostPosted: Thu Nov 09, 2023 6:52 pm 
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Thanks Tom and Pascal,

Maybe print the masts in halves and glue them around the wire :/

More stuff to clean up and paint...

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File comment: 34cm Bruno Turret 1
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PostPosted: Fri Nov 10, 2023 3:40 pm 
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For my ARL and DE masts I printed them in halves as you describe. It also worked better to make the yards hollow and each end printed separately and also joined with a wire. For the DE the mast protruded through several decks and it worked well to print each section secretly and run a wire to locate all the sections. I'm sure whatever solutions you work out will be satisfactory. An advantage of 3D is if doesn't work one can make modifications.

Regards: Tom


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PostPosted: Fri Nov 10, 2023 5:41 pm 
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Location: Bretagne, France
Nice turrets, better then the Trumpeter one's !

Yes, the piano wire is compulsory on the inside, otherwise it bends irreparably, idem for cannons.
That's what I started to do for periscopes.

Picture: viewtopic.php?f=13&t=346058&start=20

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•Battleship Bretagne 3D: https://vu.fr/FvCY
•SS Delphine 3D: https://vu.fr/NeuO
•SS Nomadic 3D: https://vu.fr/tAyL
•USS Nokomis 3D: https://vu.fr/kntC
•USS Pamanset 3D: https://vu.fr/jXGQ


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PostPosted: Tue Nov 14, 2023 6:55 am 
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Location: Perth, Western AUstralia
Iceman 29 wrote:
Nice turrets, better then the Trumpeter one's !

Yes, the piano wire is compulsory on the inside, otherwise it bends irreparably, idem for cannons.
That's what I started to do for periscopes.

Picture: viewtopic.php?f=13&t=346058&start=20

Thanks pascal,

Maybe better than the stock Tamiya turrets, but then I saw a video of some dude gluing the individual ladder rungs on the back of the turret from PE one rung at a time from the Upgrade kit. They are better, but I simply don't have that much time..


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PostPosted: Tue Nov 14, 2023 12:37 pm 
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I did some printed ladder rungs and expedited the process by having just one line of holes, the rungs were just inserted into the hull on one side and the other side just adhered with a spot of adhesive to the surface. Only half as many holes, easier alignment etc.


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PostPosted: Wed Nov 15, 2023 3:19 pm 
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Had very good luck printing hollow masts, in a vertical orientation, hollow. In some cases printing in several sections. The wire makes it very easy to locate the sections and retain strength. The biggest issue is keeping the central hole open during washing and curing. I would run a wire up and down while washing to prevent bubbles forming and blocking the passage. A way to do the yards is to have the cross piece stubbed with a hole to run the wire through both yards which are printed separately. Solid yards will bend and droop, especially under tension of rigging.

Keep up the great work! I can appreciate the work on the sea planes! Tom


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PostPosted: Fri Nov 24, 2023 2:22 pm 
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Hi all,

I re-worked the main turrets and mast with hollowing and am very pleased with the results.

Love the great ideas that come up in this forum and appreciate your assistance.

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PostPosted: Fri Nov 24, 2023 3:46 pm 
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Those look great!

Tom


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PostPosted: Sat Nov 25, 2023 8:56 pm 
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Thanks Tom :)

Hi David,

The bows, the bows...

The hull was one of my first attempts at 3D design of this type. Promise I have improved and I should go back and fix this, but...

This is what it's supposed to look like (Source Wikipedia ) ):

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This is what the 3D design looks like:

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I dislike it intensely, and have remodelled it slightly to look like this using plastic putty and whatever was lying around:

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Its sort of there, but still needs some work I think.


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PostPosted: Sat Nov 25, 2023 10:42 pm 
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Mike,

I had the same problem in my USS Oklahoma City CLG-5 CAD model (US Cleveland class hull). The bulbous bow was something new in the 1930s.

I couldn't get the CAD system to generate the correct sharply curved surface that faired into the smoother surfaces aft. So I drew the bulbous part as a separate entity, and then created the other hull surfaces using the edges of the bulbous part as templates for the other surfaces.

I actually created the hull with about a dozen separate surfaces. I did the tricky parts first and then filled in the gaps with simpler surfaces.

Phil

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PostPosted: Sun Nov 26, 2023 12:11 am 
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Hi Dave,

The cross sections came from a relatively low-res version I got some time ago from FreeShipPlans. I also have a set of the ShipArchive ones but these were not to hand when I was doing the hull design.

I was also not completely across converting hull line drawings to 3D models and struggled a bit with simple lofting between cross sections. The bulge on the nose was really beyond that.

If I was doing it again the results might be a bit closer.


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