Heavy Armor Engineering: Powering the 1/6 Scale Tiger 1

Retrofitting a static 1/6 scale model of the legendary Tiger 1 tank into a fully functional RC vehicle requires more than just standard hobby electronics. The sheer weight and torque demands of a 1/6 scale predator necessitate a sophisticated Decoupled Split Rail Power Pack. This project focuses on the critical "First Ground Run" phase—synchronizing two massive electric motors to ensure the tank tracks straight and operates efficiently.

Motor Timing and Balancing Logic

In a dual-motor drive system, minute differences in motor efficiency or internal friction can cause a tank to "Veer" to one side. This project implements a rigorous balancing methodology:

• Amp Offset Calibration: By using two identical Amp meters for real-time monitoring, the developer measures the current draw of each motor under a "Raised Track" (no load) condition and a "Full Power" ground run.
• Directional Averaging: Measurements are taken in both forward and reverse. The differences are averaged to find a precise "Amp Offset Value," which is then used in the Visuino visual programming logic to bias the PWM output, ensuring perfectly synchronized propulsion.
• Simplified Drive Train: Instead of expensive proprietary motors, this build cleverly utilizes recycled motors from a Power Wheels truck, proving that high-performance RC combat can be achieved through smart engineering and decoupling of power rails.

Visuino: Visual Logic for Complex Power

The project leverages Visuino, a graphical development environment that simplifies the creation of complex control loops:

1. Pulse Width Modulation (PWM): Visuino handles the high-frequency switching required to drive the power-hungry 1/6 scale motors without overheating the Arduino.
2. Differential Steering: The logic maps standard RC receiver inputs into independent motor commands, allowing for the Tiger's characteristic "Pivot Turns."
3. Modular Power Rail: By decoupling the control logic (Arduino) from the high-current motor rail, the system prevents electrical noise and voltage sags from causing "Brownouts" or receiver glitches during heavy maneuvers.

This power pack represents a vital bridge between static modeling and the high-torque world of heavy RC tanks, providing a blueprint for stable, balanced power management in large-scale vehicles.

1/6 scale RC retrofit Tiger 1 WW2 tank - motor timing balance test.

First ground run of the balancing of the two electric motor timings.

I used two identical amp meters to adjust them under raised track position with full power.

I did this both in the forward and reverse directions then split both of the averages for a amp offset value.

This is the static model being reworked into a RC controlled tank.

First test of the simplified drive train.

Just used two motors out of a power wheels truck.

Using the motors stock wiring to test system functionality.