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Designing Purpose-Built Drones for Ardupilot Pixhawk 2.1 by Ty Audronis

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Choosing the gimbal

As we've already said, the gimbal's main purpose is to keep the camera stable. It does this with the help of two methods:

  1. Dampen vibration through rubber grommets (between the main frame and the gimbal mount).
  2. Counter the normal tilting, rolling, and yaw movement of the drone via brushless motors on each axis.

Vibration dampening, we're all good. The same grommets are used for huge cameras as the smallest (just the count of grommets may change). Where our difficulty lies is in the balancing of the gimbal itself. We'd like to use a goPro gimbal (as it's nearly the same weight—125 grams for the Theta S and 149 grams for the goPro). Although the Theta S is (technically) lighter, the weight distribution will be completely ...

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