Servo Motors, how do they work?
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Date: 2023-11-17
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Comments and reviews: 25
blazini
Such a detailed explanation to get the fundamental details confused. There is no open-loop servo-motor servo specifically implies closed loop which requires some means of position feedback from the motor assembly to something that can control it based on that feedback. . If it is open-loop it's not a servo, it's just an actuator or gearmotor regardless of what Amazon or Aliexpress sellers list it as.
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Such a detailed explanation to get the fundamental details confused. There is no open-loop servo-motor servo specifically implies closed loop which requires some means of position feedback from the motor assembly to something that can control it based on that feedback. . If it is open-loop it's not a servo, it's just an actuator or gearmotor regardless of what Amazon or Aliexpress sellers list it as.
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Jozsi
When you remove the gears from servos, and need them for other devices, you can use the injection pin (used by doctors, to fit larger gears onto small motors. Superglue is needed, but the gears will fit perfectly on motors. This technique is needed, when you want to replace a plastic or copper gear to steel one, and the steel gear has larger hole diameter compared to the motors axis.
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When you remove the gears from servos, and need them for other devices, you can use the injection pin (used by doctors, to fit larger gears onto small motors. Superglue is needed, but the gears will fit perfectly on motors. This technique is needed, when you want to replace a plastic or copper gear to steel one, and the steel gear has larger hole diameter compared to the motors axis.
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george
First time I ran into a servo motor in a mercedes I hated them with a passion beyond explanation. One, they were installed in an impossible place under the dash. Secondly, who in this world thinks pressing a plastic gear on a metal shaft is a brilliant idea? Yea, those gears loved to split enough to make them useless and cause the customer a big $$$$$$$$$$ bill.
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First time I ran into a servo motor in a mercedes I hated them with a passion beyond explanation. One, they were installed in an impossible place under the dash. Secondly, who in this world thinks pressing a plastic gear on a metal shaft is a brilliant idea? Yea, those gears loved to split enough to make them useless and cause the customer a big $$$$$$$$$$ bill.
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Chris
Two errors noted: the first is the reference of a 9g servo meaning the torque (force) being 9grams. Actually the 9g refers to the weight (approximate) of the servo. Many 9g servos can apply a torque of 1. 6 Kg-cm torque.
The second error is the 3cm force of a 25Kg servo. Its not 6. 25Kg its actually 8. 1 Kg (25 / 3.
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Two errors noted: the first is the reference of a 9g servo meaning the torque (force) being 9grams. Actually the 9g refers to the weight (approximate) of the servo. Many 9g servos can apply a torque of 1. 6 Kg-cm torque.
The second error is the 3cm force of a 25Kg servo. Its not 6. 25Kg its actually 8. 1 Kg (25 / 3.
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Irfan
By the help of this can I rotate a gas regulator pin automatically? That we are daily adjusting manually. At 5 am we rotating the pin clockwise direction for increasing the gas pressure to the locality and at 9 pm we again rotating the pin anticlockwise for decreasing the gas pressure to the locality during night time
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By the help of this can I rotate a gas regulator pin automatically? That we are daily adjusting manually. At 5 am we rotating the pin clockwise direction for increasing the gas pressure to the locality and at 9 pm we again rotating the pin anticlockwise for decreasing the gas pressure to the locality during night time
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wayland
The resistance of the potentiometer is irrelevant. The circuit is a voltage divider and the pickup of the potentiometer outputs a voltage proportional to it's position.
You could actually drive the comparitor with another potentiometer and the servo would seek to match the position of the command potentiometer.
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The resistance of the potentiometer is irrelevant. The circuit is a voltage divider and the pickup of the potentiometer outputs a voltage proportional to it's position.
You could actually drive the comparitor with another potentiometer and the servo would seek to match the position of the command potentiometer.
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AKILA
I'm sorry but I'm assuming this is C++ at 14: 24 and I noticed some mistakes (correct me if I'm wrong.
- Servo1 was never initialized which means it's null
- an int is a Integer it's not a string so how you gave it a string value of 'A0' and it wasn't giving an error?
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I'm sorry but I'm assuming this is C++ at 14: 24 and I noticed some mistakes (correct me if I'm wrong.
- Servo1 was never initialized which means it's null
- an int is a Integer it's not a string so how you gave it a string value of 'A0' and it wasn't giving an error?
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Spurritial
How many servos can you connect to one adruino?
Can I have the servos move in an already specificated pattern?
(If you can connect multiple servos and the second answer is yes) Can each servo move in a different pattern?
Do servos need resistors?
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How many servos can you connect to one adruino?
Can I have the servos move in an already specificated pattern?
(If you can connect multiple servos and the second answer is yes) Can each servo move in a different pattern?
Do servos need resistors?
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micheal
Can someone help me figure out, how to be able to manually turn the servo, ie for safety I would like a human to take control of a steering wheel and the servo would need to turn freely, while the human is taking control, rather than lock in place.
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Can someone help me figure out, how to be able to manually turn the servo, ie for safety I would like a human to take control of a steering wheel and the servo would need to turn freely, while the human is taking control, rather than lock in place.
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sdm
Are there servos for which the pulse would need to be sent only when theres a change in position? These units appear to have a low pass filter to convert the input pulse width into an analog level fed to the comparator.
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Are there servos for which the pulse would need to be sent only when theres a change in position? These units appear to have a low pass filter to convert the input pulse width into an analog level fed to the comparator.
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John
Using two pushbutton (NO) switches to control an Arduino, I use these to control my turnouts on a HO model railroad layout.
Using 10 Arduinos, I control 20 turnouts and their associated block lights.
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Using two pushbutton (NO) switches to control an Arduino, I use these to control my turnouts on a HO model railroad layout.
Using 10 Arduinos, I control 20 turnouts and their associated block lights.
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Ken
Thank you for this nice this is very helpful I'm a 54 year-old dad trying to get a 11 year old boy into electronics we are both learning in these are really good illustrated videos I appreciate
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Thank you for this nice this is very helpful I'm a 54 year-old dad trying to get a 11 year old boy into electronics we are both learning in these are really good illustrated videos I appreciate
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Cryoine
im building a pcb mill with 5 axis, the normal 3 xyz and ab, my b axis will be used to flip the circuit boards and i plan to use these servos in the vice to clamp the board to the mill
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im building a pcb mill with 5 axis, the normal 3 xyz and ab, my b axis will be used to flip the circuit boards and i plan to use these servos in the vice to clamp the board to the mill
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Shon
In aviation industry, Servo motors can be in use of many appliances, like Auto pilot system where it moves aileron, elevator, rudder controlled by AFCS.
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In aviation industry, Servo motors can be in use of many appliances, like Auto pilot system where it moves aileron, elevator, rudder controlled by AFCS.
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education
thanks for this, you helped me to reassemble a rc car steering servo that i exploded and then taught me a bunch about it at the same time
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thanks for this, you helped me to reassemble a rc car steering servo that i exploded and then taught me a bunch about it at the same time
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Fonz
We have a machine at work that uses some servo motors. My bosses want me to learn more about it so this has been a great resource.
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We have a machine at work that uses some servo motors. My bosses want me to learn more about it so this has been a great resource.
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Mark
Great video. Minor correction on the circuit graphic - the black ground wire is drawn as going into the 5V lane of the breadboard
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Great video. Minor correction on the circuit graphic - the black ground wire is drawn as going into the 5V lane of the breadboard
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Dan
I tried using a servo once, but it didn't instantaniously burst into flames like the intro to this video. What am I doing wrong?
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I tried using a servo once, but it didn't instantaniously burst into flames like the intro to this video. What am I doing wrong?
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Tanner
We don't really use terms like open loop or closed loop. The continuous rotation models We just call continuous rotation.
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We don't really use terms like open loop or closed loop. The continuous rotation models We just call continuous rotation.
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OMNI
Thanks! Great tutorial! So the digital out of the arduino is sending out that voltage out on that digital out as a pwm?
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Thanks! Great tutorial! So the digital out of the arduino is sending out that voltage out on that digital out as a pwm?
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The
in the last cut scene of you controller the servo with the knob, did you have the FFT of the signal on the oscilloscope?
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in the last cut scene of you controller the servo with the knob, did you have the FFT of the signal on the oscilloscope?
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The
We make a humanoid robot for a welcome our first task is arm made But i nothing no about servo motor and its type
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We make a humanoid robot for a welcome our first task is arm made But i nothing no about servo motor and its type
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shawn
i want to replicate (copy) the controller board inside the servo so i dont have to tear apart servos for them
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i want to replicate (copy) the controller board inside the servo so i dont have to tear apart servos for them
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MrR3set
Could we move the servo manually (with hands) and have it configured to hold the position we leave it at?
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Could we move the servo manually (with hands) and have it configured to hold the position we leave it at?
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trend
Sir how can we convert 3 phase servo motor to 2 phase?
Please tell me.
Waiting for your reply
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Sir how can we convert 3 phase servo motor to 2 phase?
Please tell me.
Waiting for your reply
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