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Scratch build Tiger 2 Part 2

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 » Thu Feb 01, 2018 8:43 am

Part 2 is all about the turret and its making.
Before I started i realized the turret could reach a weight of around four kilos.
Attaching the turret to the upper deck could be a bit of a problem.
My first idea was to have the turret rolling on dozens of steel balls, but it turned out to be more trouble then I wanted.
I experimented with teflon washers and found it had wonderfully smooth gliding properties.
All I had to sandwich two teflon washers between the turret floor plate and the upper deck.
The only thing I had to make a new special turret ring gear.
I went ahead made washers from 0.5mm teflon sheet and the gear from 12mm aluminium plate.
Assembling the lot I was very satisfied with the outcome, it turned very smoothly and without almost no play.
Starting the gun I liked the idea that I could fire real 22 caliber shells of coarse with the tops removed.
To do so everything needed to strong enough to take the strain.
I made it strong enough but dropped the idea real cartridges .
Here in Australia that would be considered a weapon and red tape makes a project like that just impossible.
To elevate and recoil the gun I bought two KST DS215MG servos.
The nylon gears and horns they came with where not strong enough.
Surging the internet I could not find anything in metal for KST servos. They have their own standard and nothing fits from anywhere.
Even the center screw has an odd size 2.3mm. Not to mention the odd sized spline.
Had to make all those part from brass.
The commanders cupola I made from aluminium. I could have used a bought one they are very good in detail but just wanted to make my own.
Here is the report in pictures.

walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 8:44 am

Turret base.
Attachments
009 (Small).JPG
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walter
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Posts: 203
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Postby walter » Thu Feb 01, 2018 8:46 am

Turret base underneath.
Attachments
003 (Small).JPG
003 (Small).JPG (62.87 KiB) Viewed 109 times

walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 8:47 am

Turret gear.
Attachments
010 (Small).JPG
010 (Small).JPG (55.66 KiB) Viewed 108 times

walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 8:48 am

Other side with teflon washers.
Attachments
011 (Small).JPG
011 (Small).JPG (70.2 KiB) Viewed 108 times

walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 8:49 am

The side end parts.
Attachments
047 (Small).JPG
047 (Small).JPG (78.29 KiB) Viewed 108 times

walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 8:51 am

The front view.
Attachments
048 (Small).JPG
048 (Small).JPG (79.69 KiB) Viewed 107 times

walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 8:52 am

The front plate.
Attachments
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023 (Small).JPG (83.54 KiB) Viewed 107 times

walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 8:53 am

another one
Attachments
024 (Small).JPG
024 (Small).JPG (76.4 KiB) Viewed 104 times

walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 8:55 am

another
Attachments
057 (Small).JPG
057 (Small).JPG (82.41 KiB) Viewed 104 times

walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 8:56 am

and another one
Attachments
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058 (Small).JPG (80.25 KiB) Viewed 109 times

walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 8:57 am

Back plate.
Attachments
054 (Small).JPG
054 (Small).JPG (78.46 KiB) Viewed 106 times

walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 8:58 am

another
Attachments
055 (Small).JPG
055 (Small).JPG (80.81 KiB) Viewed 105 times

walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 8:59 am

Inside view.
Attachments
056 (Small).JPG
056 (Small).JPG (77.75 KiB) Viewed 104 times

walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 9:01 am

Back hatch access parts.
Attachments
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049 (Small).JPG (82.09 KiB) Viewed 103 times

walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 9:03 am

The other side.
Attachments
051 (Small).JPG
051 (Small).JPG (86.4 KiB) Viewed 102 times

walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 9:06 am

Hatch parts.
Attachments
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walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 9:07 am

Hatch fitted.
Attachments
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walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 9:09 am

Gun main body.
Attachments
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walter
Lance Corporal
 
Posts: 203
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Postby walter » Thu Feb 01, 2018 9:09 am

another view
Attachments
026 (Small).JPG
026 (Small).JPG (49.06 KiB) Viewed 100 times

walter
Lance Corporal
 
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