Adjusting the gimbal parameters (GBL-T3) Airpeak gimbal setting guide
Overview Correct adjustment of the gimbal is essential for proper use. Please review the following explanation and make any necessary changes to the gimbal’s settings. Please refer to Help Guide for the instructions on how to mount and use the gimbal. Preset of motor parameters...................................................... 2 Important note: Be sure to do this before using the gimbal. To use the gimbal correctly, you need to enter the appropriate motor parameters for your camera and lens.
Preset of motor parameters To use the gimbal correctly, you need to enter the appropriate motor parameters for your camera and lens. This section describes how to manually enter motor parameters and how to apply presets all at once. Sections: 1. How to input motor parameters with Airpeak Flight 2. Apply preset at once 1. How to input motor parameters with Airpeak Flight 1 Tap “SETTINGS“ at the top right of the Airpeak Flight app screen. 2 Tap [GIMBAL] from the displayed setting menu.
Manual adjustment of motor parameters If the motor parameters of the gimbal do not match due to the difference in weight when the camera is equipped with accessories (such as a hood, a filter, etc.) or the individual differences in the gimbal, you need to manually adjust the motor parameters. Please install PC software “gTuneDesktop” by Gremsy for motor parameters adjustment. Sections: 1. About motor parameters 2. Connect gimbal to PC 3. Start gTuneDesktop and input initial parameter 4.
2. Connect gimbal to PC 1 Before motor parameter adjustment, please double check the gimbal is properly balanced. If it is not balanced, refer to Startup Guide or Help Guide and try the balance adjustment again. 2 Control cable needs to be disconnected during motor parameter adjustment. With the power source of Airpeak turned off, disconnect one side of the control cable as shown in the image below. Control cable 2 Note: Pull out this lock while pinching the top and bottom. 3 Turn the aircraft on.
3. Start gTuneDesktop and input initial parameter 1 Start “gTuneDesktop”, select Gremsy T3, then press the [CONNECT] button. 1 1 2 After connecting, the screen will switch to [SETTINGS]. Press the Lock button at the top left of the screen. Note: All subsequent operations must be performed in Lock mode.
3. Start gTuneDesktop and input initial parameter (continued) 3 Depending on the model of camera used, set the following motor parameters for both [BASIC] setting and [EXPERT] setting.
4. Adjust motor parameters on each axis Adjust the motor parameters on each axis in the following order to get a proper response without any overshoot on the graph: TILT ROLL PAN 1 Check the graph. A. Press the [MONITOR] button to switch to the MONITOR screen. B. Press the arrow button on the right side of the MONITOR screen to renew the graph. Monitor screen Graph C. Press the [SETTINGS] button on the originally open screen to return to the BASIC setting screen. D.
4. Adjust motor parameters on each axis (continued) 2 TILT axis parameter adjustment. A. While holding the gimbal so that it doesn’t roll, push the TILT axis of the gimbal directly by hand and move it up to +10 degrees (Angle of the TILT axis will be displayed at the top of BASIC setting screen). B. Quickly release your hand from the gimbal. C.
4. Adjust motor parameters on each axis (continued) Hint: The graph screen on the right figure below, you can see that the graph goes over the center part and penetrates to the lower side (so-called “overshoot”). NO Overshoot Overshoot Hint: In the left figure below, there is no overshoot in the positive direction, but there is in the negative direction. Increase the TILT value to eliminate the overshoot in both direction as shown in the figure on the right.
4. Adjust motor parameters on each axis (continued) 3 ROLL axis parameter adjustment. In the same sequence as TILT axis adjustment, tune the parameter in ROLL axis. While holding the gimbal so that it doesn’t move in PAN axis, push the left side of the gimbal’s ROLL axis down with your hand until it reaches ±10 degrees. (+10) (-10) Increase the ROLL value in BASIC setting until the overshoot is eliminated. Search for the minimum value, as gimbal oscillation will occur when the value is too high.
5. Check the image 1 Turn on the controller and the mobile device, then check the image of main gimbal with Airpeak Flight. Make sure that there is no oscillation on the screen. If oscillation occurs, identify which axis is vibrating by decreasing axis value of each axis around 20 in BASIC setting of gTuneDesktop. Once you find the vibrating axis, adjust the value by around 5 to 10, then re-check the image on Airpeak Flight.
6. Trouble shooting (continued) The temporary vibration occurs in the image With quick acceleration or slow down, the image may temporarily vibrate. This may be avoided by taking the following actions: • Decrease STIFFNESS value by 5 to 10. • Increase HOLD STRENGTH value. Do not set the value higher than 55. If you change the HOLD STRENGTH value, you need to adjust the STIFNESS value as well.
Calibration Here are the steps to execute calibration of the IMU sensor. Only do this if you experience symptoms: • Drift such as camera cannot be leveled, angle gradually shifts, etc. -> Try Gyro calibration • Gimbal rolls -> Try Acceleration calibration. If the gimbal still rolls even mafter the acceleration calibration, try Gyro calibration as well. Please install PC software “gTuneDesktop” by Gremsy for calibration. Attention: 4 • Calibrate the gimbal on a level and stable surface.
Calibrating the Acceleration of the IMU sensor Prepare a stand to keep the gimbal horizontal level at 2.75in - 4in (7cm - 10cm) height 1 Control cable needs to be disconnected during the calibration. With the power source of Airpeak turned off, disconnect one side of the control cable. (Fig.1) 2 Turn the aircraft on. 3 Connect the gimbal to PC with supplied microUSB cable. (Fig.2) Control cable 1 Note: Pull out this lock while pinching the top and bottom. Fig.1 3 Fig.
7 To make the bottom of the gimbal flat, remove the screw as below. Note: Do not lose this washer. (white plastic part) 8 Loosen the two screws of the pitch axis. 9 Place the stand on the table and put the gimbal on it. Loosen the screws 8 Note: 9 Make sure to keep the gimbal in horizontal position. 10 Switch “ADVANCE” to the left side. 11 Press “CALIBRATE” button, then press “OK” to start calibration. 12 After the calibration is finished, close gTuneDesktop and turn the aircraft off.
Software gTuneDesktop is a PC software developed by Gremsy. By connecting to Gremsy gimbal, the software can: • Change parameters • Calibrate the sensor • Check the position of gimbal • Update firmware Get USB derive and software from following websites. Installers 1 USB Driver Download Universal Windows Driver from below site. Download *This link will direct you to Silicon Laboratories, Inc website. 2 gTuneDesktop Download * This link will direct you to GitHub, Inc website.
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