The GS-1 CR is a modified servo motor that rotates endlessly in circles, rather than stopping after 180 degrees of rotation like the standard GS-1. The GS-1 CR uses a gyro for position feedback rather than the pot that is used in a conventional servo. This greatly improves the ability to control the servo position and rotation speed compared to other continuous-rotation servos. The GS-1 CR works well in situations where the motor shaft must spin completely around without encountering any mechanical stops that would limit its movement. It wes designed primarily for aerial photography from a kite or balloon where the camera needs to pan slowly in circles while an intervalometer takes pictures.

GS-1 CR (Continuous Rotation) Features:

  • Same size as standard size R/C servos
  • 360 rotation with no limits on the amount of rotation
  • Ball bearing on output shaft
  • Futaba output spline
  • Nylon gears for smooth operation
  • 4.8V to 6.0V operation
  • 50 oz-in torque at 4.8V
  • 37 grams (1.3 oz) weight
  • MEMS gyro for better control of movement
  • Can use separate servo controller or R/C receiver to adjust rotation speed, or can be used with only a battery to continuously rotate at a constant speed

FAQ

Do I want the standard GS-1 or the GS-1 CR?

The GS-1 CR is a specialized version intended for those wanting a gyro-based motor that slowly turns in circles endlessly. If you aren't sure, you want the standard GS-1.

Can I use a GS-1 CR for panning a camera and a standard GS-1 for tilt or roll?

Yes.

Can I use the GS-1 CR without a servo controller or R/C receiver?

Yes. You can connect the GS-1 CR to only a battery and the servo will turn at a constant rate.

Is the GS-1 CR susceptible to gyro drift?

When the GS-1 CR is only connected to a battery, it is always rotating slowly so drift is not an issue. If the servo motion is stopped with a 1500 us pulse input, the GS-1 CR may drift but this drift is usually at a rate of 1 turn every 5 minutes or slower.

Can I use the GS-1 CR where the servo is mounted 90 degrees to the rotation axis of the object being moved (e.g. worm gear or bevel gear drive)?

The GS-1 CR is not compatible with these types of mountings.