Troubleshooting Spinfire Pro 2 Calibration Issues

• This article applies only to v2 Bluetooth machines. To identify whether you have a v1, v2, or v2 Bluetooth machine, please refer to this article here.

If your tennis ball machine isn’t landing balls accurately on the court, calibration may need adjustment. This guide will help you diagnose and resolve common calibration issues.

Diagnosis

1. Check Ball Type:
   • The machine is tuned by default to Spinfire Touch Pressureless balls. Other pressureless balls (e.g., Tretorn X or SetPoint Bounce) should perform similarly.
   • Pressurized balls are softer and tend to land slightly shorter than pressureless balls, which may affect accuracy.
2. Machine History:
   • If your machine is new or an older model upgraded with a new motherboard, motor performance may differ. Older upgraded machines sometimes have faster motors at mid-range speeds, requiring specific compensation adjustments.
3. Consistency Check:
   • Test if the landing issue persists across different speed and spin settings to rule out isolated configuration problems.

Resolution

Follow these steps to recalibrate your machine for accurate ball placement:

1. Use Consistent Ball Type:
   • Balls should be of the same type (ideally Spinfire Touch Pressureless). Mixing balls will produce varied landing positions where short balls may hit the net and longer balls may exceed the baseline. AI drills will require manual adjustments to avoid these scenarios.
2. Adjust Motor Compensation:
   • Calibration is optimized around speed 12, spin +5, targeting the center of the service line.
   • Use the Calibration option in Settings to automatically adjust the machine, or for manual control:
     • Go to Settings > Advanced Settings to view or adjust the motor compensation value yourself.
   • If balls land short: Increase motor compensation (e.g., by 3-5 units) to boost motor speed and extend the trajectory.
   • If balls land long: Decrease motor compensation to reduce motor speed and shorten the trajectory.
   • For older upgraded machines with unusually fast motors at mid-range speeds, a compensation value of -5 may be needed.
3. Test and Fine-Tune:
   • After adjusting, test with speed 12, spin +5 and observe where the balls land relative to the service line center.
   • Make small additional adjustments (e.g., ±1 or ±2) as needed until the balls land close to the target.
4. Handle Maximum Compensation:
   • If motor compensation reaches its maximum (10) and balls still land short, revert to an older app version via TestFlight, then lower the compensation value and retest.

Additional Tips

• Always test adjustments in a controlled session to ensure accuracy.
• If issues persist after following these steps, contact support for further assistance.Below is a video by our Australian Distributor highlighting how to use this feature