Leg issues?

phelips

phelips

RATH Regular
Hey folks, anybody on here had experince with fixing the leg issues? Ive replaced servos, sensors, and gears but right leg fails calibration and luna just gets suck on her back any ideas how to resolve? Im guessing its a sensor issue but as ive already replaced im at a loss 🤔
 
Hello,

Yes, I experienced the same issue. After replacing the right leg motor, the calibration was off, and the right leg kept staying in the air. I opened it again and noticed that the plastic around the screws holding the sensor above the motor was cracked, causing the sensor to become loose. When I tried to tighten the screws a bit more, the plastic broke completely.


So, I had no choice but to glue the sensor back into its place using a small amount of super glue—just 1–2 drops, enough to hold the sensor. After waiting about 5–10 minutes for it to dry, I checked and saw that the sensor was firmly in place. I reassembled the parts, restarted the robot, and the right leg no longer stayed up. I then ran the calibration through the app, and everything started working perfectly again.


Note: The Loona parts are quite fragile — they break or get damaged very easily. So, you need to handle them very carefully during repairs.
 
No, this is not the part. I’m sharing a photo of the broken piece.

The round sections that hold the screws cracked and broke, so I had no choice but to glue them to the base.

Loona-1.png



Loona-2.png
 
howtek said:
Hello,

Yes, I experienced the same issue. After replacing the right leg motor, the calibration was off, and the right leg kept staying in the air. I opened it again and noticed that the plastic around the screws holding the sensor above the motor was cracked, causing the sensor to become loose. When I tried to tighten the screws a bit more, the plastic broke completely.


So, I had no choice but to glue the sensor back into its place using a small amount of super glue—just 1–2 drops, enough to hold the sensor. After waiting about 5–10 minutes for it to dry, I checked and saw that the sensor was firmly in place. I reassembled the parts, restarted the robot, and the right leg no longer stayed up. I then ran the calibration through the app, and everything started working perfectly again.


Note: The Loona parts are quite fragile — they break or get damaged very easily. So, you need to handle them very carefully during repairs.
Click to expand...
Thought of fixing mine the same way.
 
Mine had a similar issue. But for me, it was the gears in the hip motor that seized up. I've since unplugged that motor. She still rolls around, but she flips over and I have to keep helping her. Reached out to Keyi and they just want me to send her in. Don't want to do that. The Facebook group I'm in suggested AliExpress motors. I just haven't had a chance to go through and find the right motor.
 
CollinWilliams said:
Mine had a similar issue. But for me, it was the gears in the hip motor that seized up. I've since unplugged that motor. She still rolls around, but she flips over and I have to keep helping her. Reached out to Keyi and they just want me to send her in. Don't want to do that. The Facebook group I'm in suggested AliExpress motors. I just haven't had a chance to go through and find the right motor.
Click to expand...

Hello,

I experienced the same issue the gears were jammed and wouldn’t turn, but the problem was not with the gears themselves. The motor was completely locked up; the front section of the motor had seized and would no longer rotate.

I purchased an N30 12V 200RPM motor, removed the gears from the original Loona motor, and installed them onto the new motor. After that, I mounted the new motor in place, and the issue was resolved.
 
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