NEW 1974 Tamiya 1/35 T-34 motorized Remote Control >RRC

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Postby modler » Mon Jan 27, 2020 7:12 pm

This was a NEW factory sealed box Tamiya T-34 scale model kit pulled from my model stash that will be built from start to finish in this thread.

Some of us take for granted building a military scale model but many these days have never built a kit due the a lot of cool stuff you can buy from China that not only is built but detailed in a lot of cases and is ready to run out of the box 8)

Of course these pre built models have no soul as they are mass produced all the same and that's OK, the price is reasonable and a lot of people do not have the time to build a model correctly plus many want to do more than just admire the looks of the model, they want to drive it immediately!

But then there comes the time when you want to build a model with soul and it will be a extension of its master :crazy: sounds crazy but in reality it is obsession with the beauty of these war machines. Well, that is my take on it ;)

It is like opening a time capsule with this model, to think that somehow this model has kept its original sealed cellophane seal in place on the box for 46 years is a bloody miracle if you ask me. It is a real treat for me to open it after all those years :D

Ok sorry for all that but it really is special to open a 46 year old time capsule of a beautiful scale military model. This is part of the adventure of scale modeling and is a special treat for an advanced modeller like myself. I am happy to share this treat here at this great site.

This kit is a wired 2 channel Motorized Remote Control system which in 1974, was top shelf! Radio control at that time was for serious electronics enthusiasts which often built their radio control systems from expensive Heathkits. I first saw a radio controlled plane in Heilbronn Germany in 1968. The guys at the base had them and built them in the barracks to pass the time in their free time and they were very smart and talented guys that I much admired. Anyway, I got to see a 2 meter Pod motorized plane get catapult launched and with motor assist climb to a very high altitude and fly around just barely visible to the naked eye. Man, that made an impression on me as a young man and gave me something to aspire to. I am a R\C pilot as well as a multiple model Tank commander and these days, I am becoming more enthusiastic about the ground models as I can operate them right on the kitchen table, very convenient in the winter months.

So I start the assembly of this very high Q model.

The twin motor all metal gearbox has had its motors wired and noise cancelling capacitors added and has been run in on using a Japan T-90 Tank. Motors disassembled after the first short run as these are 46 years old and the brush grease\cooling lube has gotten pretty stiff and needs cleaned off and replaced and reassembled and tested again. That why there are marking on the motors. They are ready for installation now.
Attachments
IMG_4257.JPG
Sealed box Tamiya 1/35 Motorized Remote Control T-34 comes out of the stash to be opened now!
IMG_4259.JPG
RRC foundation work in progress
IMG_4260.JPG
Rare 46 year old all metal gearbox prepped and tuned for model operation
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Postby Von Mooflesaaa » Mon Jan 27, 2020 7:52 pm

Nice man, great progress so far.
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Postby modler » Tue Jan 28, 2020 2:42 pm

Got the chassis together and tracks installed. A issue is now noticeable with the track tension. The T-34 tracks are solid and seem a little stronger than most of the soft plastic Tamiya tracks I have worked with. Also the T-34 track sprockets are a different design from most other sprockets I have seem as they have no sprocket edge teeth. This track uses track center teeth and center sprocket drive teeth. From my experience, this type style of track drive is very stable and has superior track retention.

This tank has two track tensioners, one forward and one aft. Unusual in Tamiya models.
Hopefully these tracks will stretch a bit now that they are mounted as they are too tight at this point. They work but you can see that they are too tight as it causes some uneven movement of the track as it is under a high load due to the over tension. If required, I will manually stretch the tracks but only as a last resort. This is an unexpected issue and have never ran into this before on a Tamiya model :think:
Attachments
IMG-4269.JPG
two different engine covers, motorized vs scale. after a little confusion, figured out there were two covers
IMG-4271.JPG
ah, that's better. the first cover I tried did not fit with the gearbox installed...WTH? go it now lol
IMG-4273.jpg
the tracks are very tight. Hopefully they will stretch a bit. you can see the center sprocket drive track teeth in this shot.
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Postby Von Mooflesaaa » Tue Jan 28, 2020 3:17 pm

Really coming together, my favorite moment is when it moves under its own power for the first time.
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Postby jimbo_wa » Tue Jan 28, 2020 3:40 pm

Looks like a great kit, are the tracks using metal pins?


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Postby Von Mooflesaaa » Tue Jan 28, 2020 3:49 pm

jimbo_wa wrote:Looks like a great kit, are the tracks using metal pins?


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I would hazard a guess being a vintage kit, that these are one piece rubber tracks. Just a guess mind.
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Postby modler » Thu Feb 06, 2020 3:01 pm

Von Mooflesaaa wrote:
jimbo_wa wrote:Looks like a great kit, are the tracks using metal pins?


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I would hazard a guess being a vintage kit, that these are one piece rubber tracks. Just a guess mind.


Stock flexible PVC tracks. These are what I prefer as they are trouble free and will not damage fine surfaces like my kitchen table. Actually, rubber tracks deteriorate over time and Tamiya switched from natural rubber to PVC tracks sometime in the mid 60's. I have a Tamiya JSIII that came with natural rubber tracks and they literally crumbled away. Now I have a tank NIB with no usable tracks.

https://youtu.be/Uv6y2BjT0EM
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IMG_4320.JPG
This is a 1965 Tamiya JSIII tank with natural rubber tracks or what is left of them. They are as brittle as a cracker.
IMG_4313.JPG
Table parade maneuvers, the M113 s on the right center
IMG_4313.JPG (75.34 KiB) Viewed 799 times
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Postby Von Mooflesaaa » Thu Feb 06, 2020 4:12 pm

Bummer about the plastic degrading. Cheers for setting us straight on the track tyoe..that's an impressive collection you have there.

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Postby modler » Sat Feb 08, 2020 6:36 pm

Von Mooflesaaa wrote:Bummer about the plastic degrading. Cheers for setting us straight on the track tyoe..that's an impressive collection you have there.

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Well, the current Tamiya track is soft PVC, the track from the 1965 Tamiya model were made of natural rubber.


Here is more of my model RRC collection on "Table Parade" below..
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IMG_4323.JPG
15 models ready for today's table parade
IMG_4323.JPG (87.5 KiB) Viewed 762 times
IMG_4324.JPG
Side view.
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Last edited by modler on Sun Sep 12, 2021 4:34 pm, edited 1 time in total.
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Postby Von Mooflesaaa » Mon Feb 10, 2020 12:10 am

Wow that looks great mate.

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Postby modler » Sat Sep 11, 2021 5:45 pm

Von Mooflesaaa wrote:Wow that looks great mate.

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Well this was a thread about the T-34 and somehow got off track. Back to the T-34. I upgraded the T-34 to a 2.4ghz IR battle tank. So now I have a 1/35 Tiger 1, Sherman M4A8, T-34 battle Tanks. All three tanks have the Tamiya metal gearbox. This collection of three tanks cost approximately $900 to build. Worth every penny IMO.

I am sure you could buy a very nice 1/16 scale for that price but I have no interest in the 1/16 scale. I probably have 60 or more RRC tanks and the only way that is possible is 1/35 scale. Oh I look at the 1/16 tanks now and then and I even had one back in 1979. A 1/16 Tamiya Leopard tank with metal gearbox with the "tiller arm" for steering. I still have the gearbox somewhere from the model but it was modified to work in a Lindberg PT-109 model. Hopefully I still have that somewhere.

Anyway back to the Tamiya T-34...
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Postby modler » Mon Sep 13, 2021 2:57 pm

Got the T-34 out of storage bin and took a few pics today. Will do a video of a roll about when time allows.

Here is a short video of the "3 hits" LED indicator.
https://youtu.be/RJicfCGFvWE

Here is a short video of the T-34 climbing a hill.
https://youtu.be/szPrLjOWWy8
Attachments
IMG_7202.jpg
Excellent track system on this tank. Has a battle system for battle against a Tiger 1. 2.4g with I\R battle system with scorings (3 hits) LED display.
IMG_7202.jpg (46.99 KiB) Viewed 132 times
IMG_7204.JPG
Pair of Tamiya 1/35 scale battle tanks. May be the only set in existence. I actually have a trio of these tanks including a Sherman M3A8. So can have a 3 way battle against the Tiger.
IMG_7204.JPG (67.15 KiB) Viewed 132 times
IMG_7210.jpg
Looks like a bit going on in there. 2.4g with I\R battle system.
IMG_7211.JPG
This T-34 runs off a 1s 140 mah lipo! That's the beauty of these all matal Tamiya gearbox, with the right motors they are very efficient and produce a lot of torque with low current consumption.
IMG_7224.JPG
refueling underway
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Postby Herr Dr. Professor » Mon Sep 13, 2021 5:52 pm

I am impressed by the wizardry you and others perform on 1/35 AFVs. What a great selection of vehicles is available to you to modify, and $300 each may seem like a lot, but one must understand that everything about the mechanicals and electronics you do is custom work. I have moved to 1/16 in modeling because of fuzzy eyesight, shaky hands sometimes, and inadequacy of what pediatricians call "fine motor skills." You, however, do have fine motor skills!
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