Hand made 1/5 scale K2 Black Panther MBT in Korea.

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Youngjae Bae
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Re: Hand made 1/5 scale K2 Black Panther MBT in Korea.

Post by Youngjae Bae »

The engine has been replaced and the drive wheel is also equipped with an assist device to prevent off-track.

Youngjae


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Re: Hand made 1/5 scale K2 Black Panther MBT in Korea.

Post by Youngjae Bae »

Today, we worked on the track separation prevention device of the driving wheel, the teeth cutting of the driving wheel, and the fuel tank positioned in a new position.
Attachments
The driving wheel that completed the change and the mud scratching were also modified and reconstructed
The driving wheel that completed the change and the mud scratching were also modified and reconstructed
In order to ensure the perfect effect of the track departure prevention device installed in the middle of the driving wheel, a cutting was performed to cut off some of the teeth of the driving wheel
In order to ensure the perfect effect of the track departure prevention device installed in the middle of the driving wheel, a cutting was performed to cut off some of the teeth of the driving wheel
Inspection after installation of track deviation prevention device of drive wheel
Inspection after installation of track deviation prevention device of drive wheel
Following the replacement of the engine, the fuel tank was moved forward, and a small motor pump will be used to supply fuel to the engine
Following the replacement of the engine, the fuel tank was moved forward, and a small motor pump will be used to supply fuel to the engine

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Re: Hand made 1/5 scale K2 Black Panther MBT in Korea.

Post by Youngjae Bae »

Today, I manufactured a generator using DC motors using the timing belt and sprocket purchased the other day.
The power generation will be controlled while driving the engine, but we expect it to be enough to charge the battery with DC 12V.
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Installation of DC motor generator
Installation of DC motor generator

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Re: Hand made 1/5 scale K2 Black Panther MBT in Korea.

Post by Youngjae Bae »

I did some work again today.
First of all, I checked the power generation performance of the step motor generator installed in the engine.

1) I have configured the engine fuel supply system.
Currently, I'm temporarily installing a water pump and commissioning it,
but I'm concerned about the deformation of the sealing material of the pump, so I ordered a small oil pump.

2) It has been confirmed that charging and discharging remain neutral when the engine is idling,
and charging becomes smooth when the RPM rises slightly.

3) Engine exhaust muffler was completed using corrugated tubes and silicone tubes.

4) The position of the throttle servo was moved close to the engine and installed.

Sooner or later I will apply a new radio system for the commissioning and install the main gun stabilizer (GSU) that was ordered by SGS Electronics and try it.

Youngjae
Attachments
Move throttle servo position
Move throttle servo position
Installing the muffler
Installing the muffler
Engine shaft power and charging process at the same time
Engine shaft power and charging process at the same time
Before charging
Before charging
After recharging
After recharging

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Re: Hand made 1/5 scale K2 Black Panther MBT in Korea.

Post by Youngjae Bae »

We even completed a simple test run after engine change today.
We found problems in these test runs and will try to solve these problems from tomorrow.
Attachments
Trial run-the lawn
Trial run-the lawn
Trial run-over the threshold
Trial run-over the threshold
Trial run - Load Increase
Trial run - Load Increase
Trial run - Gravel field
Trial run - Gravel field
Trial run - Asphalt road
Trial run - Asphalt road
Throttle servo and fuel pump
Throttle servo and fuel pump
Modifying Wire Wiring
Modifying Wire Wiring
Modifying Wire Wiring
Modifying Wire Wiring
Modifying Wire Wiring
Modifying Wire Wiring
Modified exhaust muffler
Modified exhaust muffler
Modified exhaust muffler
Modified exhaust muffler
Fuel system modification
Fuel system modification

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Re: Hand made 1/5 scale K2 Black Panther MBT in Korea.

Post by Youngjae Bae »

Here's a video of what we've been working on for the past few weeks.

Youngjae


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Re: Hand made 1/5 scale K2 Black Panther MBT in Korea.

Post by Vince Cutajar »

I like.
What type of plastic did you use for the exhaust pipe?

Vince

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Re: Hand made 1/5 scale K2 Black Panther MBT in Korea.

Post by Youngjae Bae »

Vince Cutajar wrote:
Sun Feb 25, 2024 9:11 am
I like.
What type of plastic did you use for the exhaust pipe?

Vince
In the stainless corrugated tube and the final stage (the black part) silicone tube was used.
^0^

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Re: Hand made 1/5 scale K2 Black Panther MBT in Korea.

Post by Youngjae Bae »

In order to increase the running speed of the tank,
the parts were ordered to replace the 12tooth-shaped sprocket attached to the engine's drive shaft with a 20tooth sprocket,
and then this part is attached to find the appropriate gear ratio considering the proper speed and the load at low speed.
And in order to increase the storage efficiency of electrical energy from the generator, we are going to install a three-phase diode.

Youngjae
Attachments
Three-phase diode
Three-phase diode
sprocket 20 tooth
sprocket 20 tooth

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Re: Hand made 1/5 scale K2 Black Panther MBT in Korea.

Post by Youngjae Bae »

This week's work has completed various configurations of the main body and is waiting for the arrival of the product to finally exchange the sprocket purchased from Amazon, and during this period, the electrical wiring of the turret is being renewed. In this upgrade, GSU is being introduced to link two large servos that vertically control the main gun.

Also, I hope this work will be one way to control the main gun of the large tank Leopard or Chieftain.

Youngjae

Attachments
Tensioners
Tensioners
The horizontal control of the turret by gsu is too simple to apply. However, in order to control the vertical by applying double servo, I practice setting by branching directly from the receiver using one reverse switch and two y-connectors
The horizontal control of the turret by gsu is too simple to apply. However, in order to control the vertical by applying double servo, I practice setting by branching directly from the receiver using one reverse switch and two y-connectors
I am in separate practice until the end of this week to make sure I understand how to install GSU described in German, practice to apply it to large tanks and skillfully apply program parameters to the system
I am in separate practice until the end of this week to make sure I understand how to install GSU described in German, practice to apply it to large tanks and skillfully apply program parameters to the system
While checking each signal of the transmitter, we gave the reliability of operation and carried out electrical connection work
While checking each signal of the transmitter, we gave the reliability of operation and carried out electrical connection work
The linkage rod and servohon to be connected to the servo are prepared to be symmetrical
The linkage rod and servohon to be connected to the servo are prepared to be symmetrical
In this upgrade, two high-speed large servo motors were installed symmetrically for vertical control of the main gun
In this upgrade, two high-speed large servo motors were installed symmetrically for vertical control of the main gun
Seven channels are used for GSU ON/OFF, GSU vertical sensitivity control, GSU horizontal sensitivity control, main gun vertical control, tower horizontal control, main gun launch, and tower ON/OFF control for the 8-channel receiver used in the turret
Seven channels are used for GSU ON/OFF, GSU vertical sensitivity control, GSU horizontal sensitivity control, main gun vertical control, tower horizontal control, main gun launch, and tower ON/OFF control for the 8-channel receiver used in the turret
One eight-channel receiver on the main body and one eight-channel receiver on the turrets were bound to the transmitter in succession, simplifying the electrical signal system to end the legend of moving between the main body and the turrets with a four-channel slip ring
One eight-channel receiver on the main body and one eight-channel receiver on the turrets were bound to the transmitter in succession, simplifying the electrical signal system to end the legend of moving between the main body and the turrets with a four-channel slip ring
A new electrical wiring is being constructed in the turret
A new electrical wiring is being constructed in the turret

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Re: Hand made 1/5 scale K2 Black Panther MBT in Korea.

Post by Youngjae Bae »

I'm sharing the interim results of GSU introduction.
First of all, low-cost 1/5 scale servo from China has different specifications and torque.
When two were used, one side used servo reverse, but the other side used the servo reverse signal, but the other side used the servo signal.
So, I only drove with one servo, so I confirmed the operation.
And I ordered two servos and a servo programmer today that can be a little expensive program from AliExpress. After replacing it with this servo, I will share the video within a few days.
And the sprocket to speed up was also replaced, and the result is satisfactory.

Youngjae
Attachments
Screenshot_20240307_205437_AliExpress.jpg
20240307_162510.jpg
20240307_162507.jpg
20240307_120459.jpg
20240307_120502.jpg

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Re: Hand made 1/5 scale K2 Black Panther MBT in Korea.

Post by Youngjae Bae »

On March 7, I ordered 30 tooth sprockets from Amazon and on the same day, I ordered a servo programmer and a high-powered servo from AliExpress.
The sprocket is scheduled to arrive this afternoon, and the servo programmer is expected to arrive around tomorrow, but the important part, the servo, does not arrive until tomorrow, so I will first adjust the gear ratio that determines the driving speed of the K2 tank and finish covering the upper part of the open body for work.

And while waiting, the electrical and electronic grid constituting the K2 tank was modified.

Youngjae
Attachments
Electrical and electronic components and wiring diagrams
Electrical and electronic components and wiring diagrams
Considering the performance and conditions of the engine, the gear ratio is being adjusted to realize a maximum speed twice as fast as the maximum speed of the existing 35cc engine, and the maximum speed at this time is expected to be the speed at which adults run lightly. In this case, the rc transmitter setting will consist of a parking mode (controlled by a double side slide stick) and a driving mode (operated by one right side stick)
Considering the performance and conditions of the engine, the gear ratio is being adjusted to realize a maximum speed twice as fast as the maximum speed of the existing 35cc engine, and the maximum speed at this time is expected to be the speed at which adults run lightly. In this case, the rc transmitter setting will consist of a parking mode (controlled by a double side slide stick) and a driving mode (operated by one right side stick)

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Re: Hand made 1/5 scale K2 Black Panther MBT in Korea.

Post by Youngjae Bae »

This week, we worked on assembling a bulldozer waiting for parts

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Re: Hand made 1/5 scale K2 Black Panther MBT in Korea.

Post by Youngjae Bae »

The servo still hasn't arrived, so we continued to make bulldozers this week.

​​​​​​​

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Re: Hand made 1/5 scale K2 Black Panther MBT in Korea.

Post by Youngjae Bae »

Hydraulic-powered bulldozer assembly weighing more than 300 kg has been completed.
It will be completed by installing the LED lights by next week.
Youngjae

Attachments
bulldozer5.jpg
bulldozer4.jpg
bulldozer3.jpg
bulldozer2.jpg
bulldozer1.jpg

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