Scratch build Tiger 2 Part 1

This board contains easy-to-do fixes on your new tanks from stock. This will hopefully help beginners to get the accuracy they want from their models.

Postby walter » Sun Jan 28, 2018 9:25 am

Up till now,my main activity was mainly model aeroplanes and boats.
Just from a mechanical point of view a tank project looked very different and challenging.
When a boy I always liked meccano sets. All those nuts and bolts were just marvelous.
I wanted a tank tank project where everything would be screwed together just like in a meccano set.
I picked Tiger 2 as a 1:35 scale plastic model kit and just increased the scale to 1:16 scale.
Using aluminium as the main building material and brass for the smaller parts. Keeping scale thickness as much as practical that roughly required aluminium plate from 1.5 mm to 12 mm .
Searching the internet I was surprised how many parts there were for sale and some were very good in detail like tracks and road wheels and decided I would buy those.
As it turned out I bought a lot more more small parts, but found out I had to replace many of them for quality reasons.
Something else I found out the hard way was, zinc parts do not work with brass parts for very long if moisture is around. ( Galvanic reaction)
So I started to replace almost all zinc parts that had contact with brass, with brass.
But here we go I suppose life was not meant to be easy.
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The two lower sides
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Postby walter » Sun Jan 28, 2018 9:32 am

Side fronts.
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Postby walter » Sun Jan 28, 2018 9:33 am

Sides back.
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Postby walter » Sun Jan 28, 2018 9:36 am

Bottom plate and upper side parts
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Postby walter » Sun Jan 28, 2018 9:39 am

Front bottom plate 6.5 mm thick.
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Postby walter » Sun Jan 28, 2018 9:42 am

Front bottom plate inside view. As can be seen I had to take material out to fit the gear boxes.
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Postby walter » Sun Jan 28, 2018 9:44 am

Upper front plate is 9.5 mm thick.
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Postby walter » Sun Jan 28, 2018 9:46 am

Back plate 5 mm thick.
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Postby walter » Sun Jan 28, 2018 9:49 am

Assembling the lower body.
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Postby walter » Sun Jan 28, 2018 9:53 am

Parts of the suspension arms.
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Postby walter » Sun Jan 28, 2018 9:54 am

Arms assembled.
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Postby Son of a gun-ner » Sun Jan 28, 2018 10:02 am

Wow, wish I had the machine tools to tackle a scratch build like this, I'm dead jealous.
Yes, that old electrolysis with dissimilar metals can be a pain.
So, have you considered having it anodized? I would be so tempted to do that.
Thank you for sharing your build Walter, looking fantastic already :clap:

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Postby AlwynTurner » Sun Jan 28, 2018 10:07 am

Hi Walter, this is engineering and model making taken to unbelievable heights!! 8O :clap: :clap: The precision of the work is amazing - did you previously make watches? I am awestruck!

Keep up the brilliant work and I for one will be following with mouth open.

Alwyn :thumbup: :wave:
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Postby walter » Sun Jan 28, 2018 10:11 am

Suspension arms, torsion bars and track tensioner are in. Extra bearing support is also fitted. Torsion bars are made from 1.4mm dia spring steel.
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Postby walter » Sun Jan 28, 2018 10:20 am

Gear box bearing support parts.On hindsight I could also have used ball bearings instead of brass bushes. Wonderful thing hindsight is.
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Postby walter » Sun Jan 28, 2018 10:21 am

The other side.
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Postby walter » Sun Jan 28, 2018 10:23 am

Assembled.
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Postby walter » Sun Jan 28, 2018 10:25 am

Track tensioner parts.
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Postby walter » Sun Jan 28, 2018 10:27 am

Track tensioner fitted.
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Postby walter » Sun Jan 28, 2018 10:28 am

Idler arm.
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