Union Pacific BIG BOY 4-8-8-4 1/25 Scale (Engine)

[kooklik]

Hello there

I decided to sprit to new thread for easier looking.

FRONT ENGINE SECTION
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I return back to designing and adding details to the engine. I drafted 3D model since last year. Now I am turning all parts to be a paper model. I have to add the paper thickness to each part. And design how to assemble them.
For the engine I want to sprit to 3 sections. Front Engine , Back Engine and Boiler. I start from the front engine first. This section included with Engine Truck , Front Engine. Most of parts are ready to be unrolled.

Engine-01.jpg Engine-03.jpg Engine-04.jpg Engine-05.jpg Engine-07.jpg

[kooklik]

More on 3D model
Engine-08.jpg Engine-09.jpg.jpg Engine-10.jpg Engine-11.jpg

[kooklik]

Hello all
I finished the test build of Main Drive Wheel. It works well. There was some gap between surface and surface by cutting and bending errors. I repaired by adding big volume of glue to those gaps. And removed the exceed volume by a cotton bud. Those gaps were completely removed.

Engine-12.JPG Engine-13.jpg Engine-14.jpg Engine-15.jpg Engine-17.JPG Engine-18.JPG

[outersketcher]

wow... internal structuring for each wheel. I'm gonna have to build this one.
May I ask how you did the weathering on that wheel? It looks rusty and dirty.

David

[Rick Thomson]

The mind just boggles...very impressive.

[B-Manic]

WOW = it just keeps getting better and better!!!

[kooklik]

Originally Posted by outersketcher

wow... internal structuring for each wheel. I'm gonna have to build this one.
May I ask how you did the weathering on that wheel? It looks rusty and dirty.

David

I used Tamiya's wheaterning master B-set (rust) and dry brush painted to all corners.


----kooklik----

[airdave]

How do you cut out all your card parts?

Do I see different weights of card?
What are some of the card weights you used for the wheel construction?

[kooklik]

Originally Posted by airdave

How do you cut out all your card parts?

Do I see different weights of card?
What are some of the card weights you used for the wheel construction?

I used cardboard 1.2mm and 190 grms for skin. Cardboard I cut by hand. But 190 I cut by a sticker cutting machine.
Cheers
----kooklik----

[Art Deco]

And thus the maestro penned the opening measures of his magnum opus ...