1/5 scale K2 black panther tank
04-12-2024, 04:17 PM
#226
Thread Starter
Two servos, which will be in charge of vertical operations of the main gun ordered on March 21, came home yesterday, more than 20 days after entering Korea from China.
In the process of reflecting the amendment to receive the correct product through correction due to a large amount of government VAT due to the incorrect application of HS code by an agent in charge of customs clearance, there were two dismissals by the Korean Customs Service, so I paid the incorrectly measured tax and received it, and I'm going to take the process of getting the tax back.
When I tried to work with a dedicated programmer of GX SERVO, which I had bought first to reverse the direction of one of the servos I received yesterday, I found that the servo programmer was defective.
The product was sent without three pins for the servo interface.
I found out that their QC level was terrible, so I doubt that their servos will work well.
I tried soldering three wires to the servo programmer myself and connecting them to the servo, but the computer and USB dongle recognize each other's signal, but the dongle and the servo could not recognize each other.
The dongle couldn't read the parameters of the servo, so it eventually decided to return it through AliExpress, notified the existing buyer of this and ordered a new product at the same time to save time.
I also asked him to thoroughly check the quality before delivery.
First of all, I will install a servo reverse switch in one servo to work with the reverse direction, and I will adjust the length of the push rod to match the centers of the two servos.
Later, when a new programmer comes, I will try to reverse the direction and adjust the center through the programmer.
And while waiting for the new servo, I decided to modify some devices through various trials.
1. I decided to replace the motor that controls the level of the turret with the planetary gear motor from the currently installed worm gear type.
When the horizontal stabilizer was turned on during the test operation and the excessive left and right pivot was intentionally performed, it was found that the current worm gear could not withstand and was crushed.
Therefore, I decided to replace it with an impact-resistant planetary gear type motor that was applied when manufacturing 1/6 scale Chieftain and ordered an additional motor.
2. The test was carried out after replacing the gear ratio to speed up the heavy RC tank of the Big Scale.
I found out that when I excessively adjusted the dependent gear ratio to increase the speed as much as possible, the torque loss of the engine was severe and the engine was too much.
I found out the limitations of the proper gear placement based on the current engine, so I decided to adjust the gear placement to the proper level again.
These operations will be carried out from next week.
2 servos for vertical control of main gun arrived in 21 days
150KG.cm GXservo
150KG.cm GXservo
Programmers exclusively for GX servos that arrived defective
There are no three servo connecting pins
Trying to use three strands by soldering them directly
Connect PC, Servo programmer and Servo
PC program fails to read servo parameters, then decides to return defective products
Servo signal reverse switch
Configure the servo to be installed temporarily
The worm gear motor currently installed, the horizontal stabilizer ON, and the gear is broken in the sharp left and right pivot turns
Plan to install 2 planetary gears for horizontal control to be replaced
In the process of reflecting the amendment to receive the correct product through correction due to a large amount of government VAT due to the incorrect application of HS code by an agent in charge of customs clearance, there were two dismissals by the Korean Customs Service, so I paid the incorrectly measured tax and received it, and I'm going to take the process of getting the tax back.
When I tried to work with a dedicated programmer of GX SERVO, which I had bought first to reverse the direction of one of the servos I received yesterday, I found that the servo programmer was defective.
The product was sent without three pins for the servo interface.
I found out that their QC level was terrible, so I doubt that their servos will work well.
I tried soldering three wires to the servo programmer myself and connecting them to the servo, but the computer and USB dongle recognize each other's signal, but the dongle and the servo could not recognize each other.
The dongle couldn't read the parameters of the servo, so it eventually decided to return it through AliExpress, notified the existing buyer of this and ordered a new product at the same time to save time.
I also asked him to thoroughly check the quality before delivery.
First of all, I will install a servo reverse switch in one servo to work with the reverse direction, and I will adjust the length of the push rod to match the centers of the two servos.
Later, when a new programmer comes, I will try to reverse the direction and adjust the center through the programmer.
And while waiting for the new servo, I decided to modify some devices through various trials.
1. I decided to replace the motor that controls the level of the turret with the planetary gear motor from the currently installed worm gear type.
When the horizontal stabilizer was turned on during the test operation and the excessive left and right pivot was intentionally performed, it was found that the current worm gear could not withstand and was crushed.
Therefore, I decided to replace it with an impact-resistant planetary gear type motor that was applied when manufacturing 1/6 scale Chieftain and ordered an additional motor.
2. The test was carried out after replacing the gear ratio to speed up the heavy RC tank of the Big Scale.
I found out that when I excessively adjusted the dependent gear ratio to increase the speed as much as possible, the torque loss of the engine was severe and the engine was too much.
I found out the limitations of the proper gear placement based on the current engine, so I decided to adjust the gear placement to the proper level again.
These operations will be carried out from next week.
2 servos for vertical control of main gun arrived in 21 days
150KG.cm GXservo
150KG.cm GXservo
Programmers exclusively for GX servos that arrived defective
There are no three servo connecting pins
Trying to use three strands by soldering them directly
Connect PC, Servo programmer and Servo
PC program fails to read servo parameters, then decides to return defective products
Servo signal reverse switch
Configure the servo to be installed temporarily
The worm gear motor currently installed, the horizontal stabilizer ON, and the gear is broken in the sharp left and right pivot turns
Plan to install 2 planetary gears for horizontal control to be replaced
Last edited by PE YOUNG; 04-13-2024 at 02:11 AM.
04-13-2024, 02:02 AM
#227
Thread Starter
Inside the worm gearbox that was damaged during the rapid horizontal stabilization test of the turret
Inside the worm gearbox that was damaged during the rapid horizontal stabilization test of the turret
Identified that the gear teeth were also damaged
Extreme speed-up gear ratio to maximize speed
Extreme speed boosters and sprockets to maximize speed - set to decelerate again
04-23-2024, 05:00 AM
#228
Thread Starter
Replace petrol supply pump
Replace with 200 RPM planetary gear DC motor for turret rotation control (existing: worm gear motor)
Add a hole for motor shaft withdrawal to a new location for installing the planetary gear motor
Installation of holes for planetary gear motor installation
Move existing worm gear motor position to new planetary gear position
Installation of planetary gear motor
Preparing to cut the motor shaft
Motor shaft cutting
Clean up the cutting surface after cutting the motor shaft
Clean up the cutting surface after cutting the motor shaft
Planetary gear motor and new drive gear
Planetary gear motor and new drive gear
Reinstalling the front top cover
Installation of front upper cover retaining bolts
Installation of the middle upper cover
