HELP please! Bought second hand metal gear servos with metal arm and now need to replace arms. But cannot remove them at all. may be they are on thread locker? What you suggest - how to remove the arms? Its Power HD 1501 MG analog servo. Thanks
They are not; servo gear sets are application specific. There are a few cases where a gear set will fit in another servo (example, using an HS-645MG gearset in an HS-625MG servo in order to increase torque and decrease speed) but to keep it simple it's best that you order the gear set for the servo that you have. Let us know should you have any other questions tech@servocity.com!
Question here: all my gears are fine and I'm waiting for my servo tester to get here by amazon prime. is it normal for a servo to get wild and run without stopping if I removed everything, all gears except the main one coming from the small motor? Powering up the heli with a used servo, testing it while its not assembled and servo goes wild lol...
Hello! That is normal. There are two parts of a servo that come into play here, the motor, and the feedback device (usually a Potentiometer). The feedback device sends the position of the output shaft (the slowest turning gear) back to the servo's board. The board is able to read both the signals you're sending it, and the feedback device. And wants to "match those up". If it's being sent a signal that doesn't match the current position of the servo, it will command the motor to turn until the feedback device moves into its correct position. Where the servo can stop running the motor. This is done using something called a "Feedback Loop" or more specifically, a "PID Loop". When you disconnect the motor from the feedback device, the servo loses its ability to control where the feedback device is, but it will keep trying by continuously spinning the motor until you turn off the servo, or move the feedback device to the correct position.
Generally speaking yes, within the hobby market. There are some slight differences in some situations (for example the little tab off to the side of a Futaba servo connector), but most of the mating connectors account for the little differences (such as the tab) so that everything plays nicely together. We'd be happy to help answer any questions you might have and help clarify. You can contact us directly at tech@servocity.com.
HELP please! Bought second hand metal gear servos with metal arm and now need to replace arms. But cannot remove them at all. may be they are on thread locker? What you suggest - how to remove the arms? Its Power HD 1501 MG analog servo. Thanks
Which grease we can use for long life
Thank you, you helped me replace a gear in my hdpower 25kg years later, sheared the pin. cheers, new to the hobby, took me 2 hours
Nice tutorial thanks from Australia 😊
Glad you found it helpful!
mg996r gear set available in market?
thx for the series!
So mechanical stop should be on the opposite side of the output gear to the rest of the gear train?
Generally, yes.
Thanks! are all gear sets the same size no matter what servo you have??
They are not; servo gear sets are application specific. There are a few cases where a gear set will fit in another servo (example, using an HS-645MG gearset in an HS-625MG servo in order to increase torque and decrease speed) but to keep it simple it's best that you order the gear set for the servo that you have. Let us know should you have any other questions tech@servocity.com!
ServoCity thank you!
Question here: all my gears are fine and I'm waiting for my servo tester to get here by amazon prime. is it normal for a servo to get wild and run without stopping if I removed everything, all gears except the main one coming from the small motor? Powering up the heli with a used servo, testing it while its not assembled and servo goes wild lol...
Hello! That is normal.
There are two parts of a servo that come into play here, the motor, and the feedback device (usually a Potentiometer). The feedback device sends the position of the output shaft (the slowest turning gear) back to the servo's board. The board is able to read both the signals you're sending it, and the feedback device. And wants to "match those up". If it's being sent a signal that doesn't match the current position of the servo, it will command the motor to turn until the feedback device moves into its correct position. Where the servo can stop running the motor. This is done using something called a "Feedback Loop" or more specifically, a "PID Loop".
When you disconnect the motor from the feedback device, the servo loses its ability to control where the feedback device is, but it will keep trying by continuously spinning the motor until you turn off the servo, or move the feedback device to the correct position.
Are all servo connectors the same? Whatfits what? Doug
Generally speaking yes, within the hobby market. There are some slight differences in some situations (for example the little tab off to the side of a Futaba servo connector), but most of the mating connectors account for the little differences (such as the tab) so that everything plays nicely together. We'd be happy to help answer any questions you might have and help clarify. You can contact us directly at tech@servocity.com.
I flood the poti with tuner spray, once its already open.