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My first scratchbuilt structure

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My first scratchbuilt structure
Posted by RedLeader on Wednesday, November 11, 2009 8:41 PM

Here is my first struture built from scratch.  These are concrete silos for the storage of corn.  These will make part of an ethanol plant complex,  The structure was made out of 3" and 4-1/2" PVC tubes. Elevators are from walthers and rix. Railings and stairs are from Tichy. Other details from plastruct, pikestuff and my scrap box.  Paints are Floquil concrete, rust, dust, grimmy black, and Revell enamels, specially steel and anthacite.

 

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Posted by cudaken on Wednesday, November 11, 2009 10:17 PM

 What ever you want to call, looks great!

I hate Rust

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Posted by eric719 on Wednesday, November 11, 2009 11:17 PM
Great job! Eric
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Posted by R. T. POTEET on Thursday, November 12, 2009 1:05 AM

Good job!

I wish I had a photograph of my first scratchbuilding/kitbashing--whatever--effort from thirty or more years ago. I too tackled an elevator complex although mine was from the twenties and I attached a feed and grain store to it. I'm not sure exactly what it looked like when I got done but I'm sure that had I showed it to someone they would have reasoned that it really didn't look much like a grain elevator nor like a feed and grain store. My more recent (N-Scale) efforts show considerably more promise.

From the far, far reaches of the wild, wild west I am: rtpoteet

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Posted by doctorwayne on Thursday, November 12, 2009 1:15 AM

Good-looking kitbash, Red.

 

R. T. POTEET

I too tackled an elevator complex although mine was from the twenties and I attached a feed and grain store to it. I'm not sure exactly what it looked like when I got done but I'm sure that had I showed it to someone they would have reasoned that it really didn't look much like a grain elevator nor like a feed and grain store.

 

I know what you mean R. T.:  I scratch-bashed this 'phone booth, but it didn't come out anything like the drawing:

Wayne Wink

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Posted by wedudler on Thursday, November 12, 2009 1:38 AM

 My first scratch build structure was a yard tower at my then German railroad "Hennen". It's long gone.

My first US style structure was a wooden bridge following an article in Model Railroader, I've built it in 1991.

 

Wolfgang

Pueblo & Salt Lake RR

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Posted by R. T. POTEET on Thursday, November 12, 2009 1:47 AM

doctorwayne

Good-looking kitbash, Red. I scratch-bashed this 'phone booth, but it didn't come out anything like the drawing:

Wayne Wink

I once scratchbuilt a phone booth; surprisingly mine came out identical to yours--we must have used the same plans!

From the far, far reaches of the wild, wild west I am: rtpoteet

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Posted by DingySP on Thursday, November 12, 2009 12:04 PM

davidmbedard

 Well done!

But to clarify your terminology, what you have done is a kitbash.  Building something from scratch involves no commercial parts.   Kinda like making a cake....the moment you use a mix or an icing from a can, you no longer are in the scratch category.

But it makes no difference....well done.

David B

   Just curious...If you design a structure, buy raw materials (plastic strip, sheet, door/window castings) and build your model, is this not scratch building? I know it is a fine line, but I think this could be called scratchbuilding.

   However you want to categorize it, great job on your model!

Tom

Keepin' it Dingy
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Posted by cwclark on Thursday, November 12, 2009 12:57 PM

That is most definetly a scratch build!   There are bits and pieces of non modeling materials used like the pvc pipe and sheets of styrene. You are allowed to use manufactured doors, windows, awnings, ect. to still be called a scratchbuild. Kit bashing is when you use the parts of two or more kits to create another unique structure.   Good job i might add!....chuck  

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Posted by faraway on Thursday, November 12, 2009 3:48 PM

 The two larger silos are the first model that have the typical horizontal weathering I saw so often on the prototype of concrete solos. Could you explain how you did that part of weathering please.

Reinhard

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Posted by kog1027 on Thursday, November 12, 2009 4:27 PM

Stunning job for a first time build.

Keep up the good work!

Mark Gosdin

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Posted by CSX_road_slug on Thursday, November 12, 2009 7:45 PM

Excellent work!  That pvc pipe is great for scratchbashing, I've used it in my blast furnace stoves and my cement distributor silos.

-Ken in Maryland  (B&O modeler, former CSX modeler)

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Posted by jerryl on Thursday, November 12, 2009 8:42 PM

 I agree, it's "scratch built". To be kit bashed you have to start with at least 1 kit.  I only ever made 2 structures without any commercial parts, & that was before I knew better.  Jerry

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Posted by dand200 on Friday, November 13, 2009 3:48 AM

I too would like to know how you created the seams and weathering on the larger silos.

Dan

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Posted by TMarsh on Friday, November 13, 2009 4:41 AM

Scratch or Scratchbash, it doesn't matter what you call it to me, it's still a very VERY good job!!

Todd  

Central Illinoyz

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I'm a small town boy. A product of two people from even smaller towns. I don’t talk on topic….. I just talk. Laugh

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Posted by RedLeader on Friday, November 13, 2009 7:36 AM

 Thank you all for your comments.  It was really fun to build. 

The "seams" effect was really easy.  It's an old technique called Preshading.  First the PVC tubes were scribed using a scribing tool every 4 in.  for a total of 10 horizontal scribes.  I used the tape used by those labeling machines as guide.  This tape is excelent for the job, since it is autoadhesive, flexible and strong enough to support the scriber, just like a flexible ruler, and it is cheap, I use it very often on my model airplanes.  After correcting some scribes with putty and rescrabing I painted the tubes Floquil concrete.  When the paint was dry I used a mixture of 50% thinner and 50% Floquil Grimmy Black and painted over the horizontal scribes.  The horizonat lines doesn't need to be perfect.  When dried I then applied different shades of the concrete color mixed with small amounts of white or dark gray to each of the horizontal spaces between the "seams".  I tried that the shades were very subtle.  After everything was dry I then sprayed a final coat of Floquil concrete in a 70-40% thinner/paint mixture to blend everything.  I kept srpaying the very thin paint until the shades and black lines started to blur and give the desired effect.  Then I weathered the struture with more grimmy black to simulate grit and algea produced by rain, spraying in a downward motion from top to buttom, some dust and brown shades at the base, and rust for the railings and stairs.

 The seams in  most concrete structures may vary depending on the construction system used. In concrete silos generaly a ring form made of steel (in some cases of wood) are used for construction.  The concrete is poured into the form.  Then after the concrete is dry enough to stand by itself the ring is raised and more concrete is poured, repeating the process until the required height is reached.  The seams are produced where the "old" concrete meets the "new" concrete.  The distance between seams also depends on the system used.  In many cases this seams serve as expantion joints, allowing the concrete to expand and contract with the changes of temperature. Even the slightest difference in the aggregate proportions and even in the weather produce a different shade of the concrete color.  Therefore it is virtualy impossible that two batches of concrete mixture look exactly the same, giving each ring a slightly (and sometimes really different) shade of color.  The seams acumulate dust, grit and filth in them making them dark in color.  When it rains, the water washes this filth out of the seam creating broad stains along them.  Concrete is permeable, meaning the it lets water through.  Exposed concrete structures are also very rough on their surface capturing droplets of water.  This allows the growth of algea and fungi on exposed concrete structures, producing also broad dark stains specially where water is most in contact or retained (seams, roof edges, bases, etc...)  Many architects consider these weathering effects as "beautiful" and design their buildings to show it.  An example of this was Estonian/American architect Louis Khan.  This design style was often known as "brutalism".

 

 

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