Jagdtiger No.41 in Germany

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Paul Sparkes
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Re: Jagdtiger No.41 in Germany

Post by Paul Sparkes »

Sascha,

Very impressive work, I only hope my JT turns out half as good.

Do you know the thread size in the end of the barrel? I have modded mine for 140mm of recoil and just about to machine the other parts needed.
I don’t have the barrel here to measure and I want to design the mechanism.

Paul

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Sascha Hornbach
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Re: Jagdtiger No.41 in Germany

Post by Sascha Hornbach »

I try to cast the Roadwheelhubs in tin with a oil sand mould and 3D printed master form. This is the first prototype and much room to improve the cast. Note that the tube has not the final length.

Paul, I am sorry, I do not know the thread size. I used that thread end to build the 140mm mod. I have no measuring gauge to check the size. Maybe Armortek could help here?

regards

Sascha
JT_131.jpg
JT_132.jpg
JT_133.jpg
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Sascha Hornbach
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Re: Jagdtiger No.41 in Germany

Post by Sascha Hornbach »

Today I made tasty Wheelhubs fresh of the oven...
JT_134.jpg
I casted 18 hubs and drilled all the holes.
JT_135.jpg
Then I CNC cut the brassparts, and cut off the old wheelhubs from the axles.
JT_136.jpg
After drilling a 10mm hole in the axles, I put both parts together with Endfest 300 and tempered it at 100°C in the oven.
JT_137.jpg
JT_138.jpg
regards

Sascha
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Oliver Brüninghaus
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Re: Jagdtiger No.41 in Germany

Post by Oliver Brüninghaus »

Mmm yummy, your wheelhubs look brilliant.
What alloy did you use for the casting :?:

regards
Oliver
it's grim up north

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Robert E Morey
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Re: Jagdtiger No.41 in Germany

Post by Robert E Morey »

Those end caps look really great! Excellent!
Bob

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Sascha Hornbach
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Re: Jagdtiger No.41 in Germany

Post by Sascha Hornbach »

Hi Oliver,

sorry for the delay, I do not use alloy, it is metallic tin. I do not have an oven who can reach the melting point of aluminium.

The last weeks I finished the elevation mechanism and mounted the endswitches. The Unit works now very smooth and fine. The electronic you can see is a controller for submarine piston tanks. So I can control the comlplete way proportional. A Video will follow soon.

Next step was to build the mechanic for the side movement of the barrel. I also use a gearmotor and endswitches. This weekend I make trials with the compressed air parts to get the adjustment for a scale recoil.

best regards

Sascha
JT_139.jpg
JT_140.jpg
JT_141.jpg
JT_142.jpg
JT_143.jpg
JT_144.jpg
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Chang
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Re: Jagdtiger No.41 in Germany

Post by Chang »

Hi Sascha,

How long is the leadscrew of the elevation mechanism? Customer-made or from Armortek?
Your modifications are really eyes wide open !

Regards,
Lerh Chang
------------------------------------------------------------------
Es braust unser Panzer im Sturmwind dahin.....

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Sascha Hornbach
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Re: Jagdtiger No.41 in Germany

Post by Sascha Hornbach »

Hi,

the leadscrew has a length of 100mm plus the part without a thread with 20mm. The mechanism is my own mod.

best regards

Sascha
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Oliver Brüninghaus
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Re: Jagdtiger No.41 in Germany

Post by Oliver Brüninghaus »

Hello Sascha,

your construction looks rock solid. No wobble is to be expected.
Brilliant solution.


Regards
Oliver
it's grim up north

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Sascha Hornbach
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Re: Jagdtiger No.41 in Germany

Post by Sascha Hornbach »

Here a small trial Video:
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Sascha Hornbach
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Re: Jagdtiger No.41 in Germany

Post by Sascha Hornbach »

Hi there,

not much time for big steps on 331, the last weeks I collected parts to build a 44` style control panel.

best regards

Sascha
JT_145.jpg
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Oliver Brüninghaus
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Re: Jagdtiger No.41 in Germany

Post by Oliver Brüninghaus »

Hello Sascha,

As always, you have done an excellent job.
Voltmeter, glow lamps and Pertinax give the perfect flair to match the model.
A real feast for the eyes. :-P

Best
Oliver
it's grim up north

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