When using the Aux motor to power a 3-axis vertical shot, are you noticing the motor slipping? Is the motor not holding the weight of the cart, camera and TB3? Are you using the strong 27:1 motor? If the answer to these questions is yes, no need to worry, we have a setting that could fix this.
In the TB3 set up menu you can control the power of your Aux motor. This is important because depending on how this is set you can potentially save a ton of battery life, but in doing so you can also loose a lot of the power you need for vertical shots. To better understand your Aux motor power, please review the various settings below:
How your TB3 manages power for your Aux motor.
Shoot (Pwr Save): Recommended (level/flat shots)
This means power down at all times except for the move. This saves a lot of power for many types of shots, but could be less precise for long lens shots. This is a great mode if you are really trying to extend your times. Run times can be increased several fold with this mode!
This means power down when static time (shutter) not engaged. Good for most AUX shots if going level or shallow or using the 26:1 in some vertical shots with lighter rigs.
This means power down only at the end of a sequence, but on during the rest of the time. This is good for doing steep dolly moves where you want to hold position between shots. Should be used only selectively with the AUX as this can use A LOT (10 to 20x more power is not out of the question) based on your shot types.
This means no power down, even after a shot sequence completes- uses the most power and should only be used on AC (mains)