how high of torque servo do i need to buy to be able to pull the throttle cord? (in kg/cm please?)For my summer project this year, im building a remote controlled boat with a trimmer engine. a Q about servos?
Get a spring balance and measure it. (In 'real' science and engineering that's also known as 'empiricism' 鈽?
DougFor my summer project this year, im building a remote controlled boat with a trimmer engine. a Q about servos?
There's generally just a little spring in the carb to pull back on the throttle; It shouldn't be much, but you can also weaken the spring.
Saturday, January 16, 2010
Changing the rotation of servo's in Radio Controlled Car?
I recently put together a RC (Radio Controlled) nitro powered car. I have just noticed one major problem. On the controller, when I turn left, the car turns right! I don't know if it is because I put the servo' in wrongly or what. What can I do about this? I hope I dont have to take it all apart and redo it! Is there a way I can change the rotation of the servo's in the car without taking it apart?Changing the rotation of servo's in Radio Controlled Car?
hold the remote upside down! =) no jk. i don't know exactly how they work, but i expect that if you reverse the polarity of the motor that turns the wheels, it will switch it around. try that and update if it doesn't work.
hold the remote upside down! =) no jk. i don't know exactly how they work, but i expect that if you reverse the polarity of the motor that turns the wheels, it will switch it around. try that and update if it doesn't work.
I have a radio controlled car model, i tryed switching to another steering servo. still unresponsive any ideas
the throttle response is still activeI have a radio controlled car model, i tryed switching to another steering servo. still unresponsive any ideas
so help you Godcosmetics online
so help you God
What transmitter and recievers can I buy to control 4 different simple servos?
I have 4 bird launchers for dog training. All have the servo/ electronics built in. They are made to buy a $700 system from dogtra or tri-tronics, but i know i can do it for alot less with another transmitter and reciever. Im sure it is very simple considering the servo only triggers the release mechanism. I need a battery operated system that can be controlled at a maximum distance of about 700 feet. What should i buy and is it easy to hook up to such a simple servo?What transmitter and recievers can I buy to control 4 different simple servos?
a radio controlled airplane transmitter would work great check out a local hobby store or one of those nice radio controlled cars that have a 4 channel system check out futaba
a radio controlled airplane transmitter would work great check out a local hobby store or one of those nice radio controlled cars that have a 4 channel system check out futaba
I have a radio controlled car model, i tryed switching to another steering servo. still unresponsive any ideas
the throttle response is still activeI have a radio controlled car model, i tryed switching to another steering servo. still unresponsive any ideas
so help you God
so help you God
How should I adjust the servo-motor cables (controls exhaust/intake valves) on '02 CBR954 RR,for hi-r.p.m. HP?
I want to adjust the servo cables for the intake and exhaust valves so that they open/close at the optimal RPM to make the most power in the high-revs? I want this to be approximately 7000-12,000 rpms. I do not have a power-prgrmmr or such, but do have a K%26amp;N filter, FMF silencer,hi-per cltch and 1 tooth smaller front sprocket.
Are there any certified-Honda Tech's out there to answer this???How should I adjust the servo-motor cables (controls exhaust/intake valves) on '02 CBR954 RR,for hi-r.p.m. HP?
there are no cables that open or close your valves they open and close via the camshaft the servo motor in your exhaust is not adjustable period do not mess with your bike you haven't a clue to how it operatesHow should I adjust the servo-motor cables (controls exhaust/intake valves) on '02 CBR954 RR,for hi-r.p.m. HP?
From your question it sounds like you are confused about the variable exhaust valve system. The valve in the exhaust system which is controlled by the bikes computor and moved by the servo motor and cables has NOTHING to do with the engine exhaust/intake valves. As far as I know there is no optimum power setting or tuning to it. You simply set it as described in the manual. After removing the lower part of the fairing you can see the lower pulley, there are dots on it. At idle to a certain engine speed the pulley is in one position. As you rev the engine the pulley changes to two other postions through the rev range (I can't remember the RPM shift points). You simply change the cable adjustment to make sure the pulley travels to the correct position when it changes, there is no majic setting. If fact most aftermarket exhaust systems simply do away with the valve which tells you that it is really not all that effective anyway.
geo46er explained it perfectly.
Are there any certified-Honda Tech's out there to answer this???How should I adjust the servo-motor cables (controls exhaust/intake valves) on '02 CBR954 RR,for hi-r.p.m. HP?
there are no cables that open or close your valves they open and close via the camshaft the servo motor in your exhaust is not adjustable period do not mess with your bike you haven't a clue to how it operatesHow should I adjust the servo-motor cables (controls exhaust/intake valves) on '02 CBR954 RR,for hi-r.p.m. HP?
From your question it sounds like you are confused about the variable exhaust valve system. The valve in the exhaust system which is controlled by the bikes computor and moved by the servo motor and cables has NOTHING to do with the engine exhaust/intake valves. As far as I know there is no optimum power setting or tuning to it. You simply set it as described in the manual. After removing the lower part of the fairing you can see the lower pulley, there are dots on it. At idle to a certain engine speed the pulley is in one position. As you rev the engine the pulley changes to two other postions through the rev range (I can't remember the RPM shift points). You simply change the cable adjustment to make sure the pulley travels to the correct position when it changes, there is no majic setting. If fact most aftermarket exhaust systems simply do away with the valve which tells you that it is really not all that effective anyway.
geo46er explained it perfectly.
Do the amount of channels on a r/c radio relate to how many servos it can control??
exactly... a 2 channel radio can control 2 servos. Typically for cars and boats. 4, 5, 6 and more are typically used for planes and helicopters.
However, you can contorl multiple servos from 1 channel with a Y harness, typically used for V-tails, flaperons, etc.Do the amount of channels on a r/c radio relate to how many servos it can control??
Please choose the other answer.
However, you can contorl multiple servos from 1 channel with a Y harness, typically used for V-tails, flaperons, etc.Do the amount of channels on a r/c radio relate to how many servos it can control??
Please choose the other answer.
Can a servo motor be directly controlled by a pc?
On board car computers do it all the time. I see no reason a laptop or desktop PC could not.
R/C Aircraft control rods servos?
I have brought a plane off the internet but I have thrown myself in at the deep end... I has a controller and some servos and I have managed to wire it up electrically but I haven't got a clue how to connect the servos to the ailerons. Are there any good guides on the internet?R/C Aircraft control rods servos?
Go to a local hobby shop near you and they should be able to help you out with connecting the servos to the ailerons.
Wishing you the best,
CMR/C Aircraft control rods servos?
Hi you asked a good one depending on the plane there are three basic ways to hook up ailerons so it's a hard one to answer here's a site you can go to and find a plane smiler to yours and all of them have manuals you can look at look at the hookup for the ailerons you have they'll have pictures so you wont need to guess http://www.greatplanes.com/airplanes/
fly safe
Dan
I would recommend searching on google for R/C clubs in your area. There should be at least 1 group that is near your area, and able to provide some expertise. Another option would be to ask around at a local hobby shop. They'll often do repairs and electronic work, so they should know how to help you. They can also point you towards some good airfields! Good luck, and happy flying.cosmetics online
Go to a local hobby shop near you and they should be able to help you out with connecting the servos to the ailerons.
Wishing you the best,
CMR/C Aircraft control rods servos?
Hi you asked a good one depending on the plane there are three basic ways to hook up ailerons so it's a hard one to answer here's a site you can go to and find a plane smiler to yours and all of them have manuals you can look at look at the hookup for the ailerons you have they'll have pictures so you wont need to guess http://www.greatplanes.com/airplanes/
fly safe
Dan
I would recommend searching on google for R/C clubs in your area. There should be at least 1 group that is near your area, and able to provide some expertise. Another option would be to ask around at a local hobby shop. They'll often do repairs and electronic work, so they should know how to help you. They can also point you towards some good airfields! Good luck, and happy flying.
New to robotics. Controlling a servo?
So I need a servo to move 90 degrees, and I read somewhere that you connect the reference wire to something and make the signal 1.5ms and it will make the servo rotate 90 degrees. I need to know what that ';something'; is.New to robotics. Controlling a servo?
You are new to servos so let me try to sort out some ideas for you. A servo is a system that can move a load at a predetermined rate...a rate servo. The sort of thing that drives a radar aerial at an airport...going round and round irrespective of the wind load on the aerial. Another type of servo is the positional servo which will move from one position to another at a predetermined rate...sort of thing that moves machinery from one position to another.
The servo itself can be hydraulic, electric, or pneumatic. The hydraulic system will need a source of high pressure oil as the ';power'; supply. The electric servo needs electricity as its power supply and the pneumatic servo needs a supply of compressed air as its power supply.
My knowledge is in electric servos and there are 3 distinct types depending on the motor technology. There is the stepping or stepper motor. This type of motor moves a precise angle for a pulse of energy applied to it. The angle of movement is fixed for each motor type and the list of angles is endless. Slight disavantage of the stepper motor is that it's torque output is fixed and if it is stalled then althought energy is being put in at the front end no movement will come out of the motor. The true servo motor can be either AC or DC. Why true servo motor because servos are the high performance motor...the GTI of the motor world. There have to deliver high performance all the time and must not fail so their carefull application is important.
A Rate servo need to have a speed sensor attached to the motor so that the control system can see how fast the motor is rotating. The Positional servo needs to have the speed sensor and a rotary position sensor so that the control system can determine both speed and positional control.
So getting back to your question, I would think that your wire should go to a stepper motor control drive and the stepper motor connected to the drive. By closing your signal the correct number of times you will get the motor to turn 90 degrees.
Good luck
You are new to servos so let me try to sort out some ideas for you. A servo is a system that can move a load at a predetermined rate...a rate servo. The sort of thing that drives a radar aerial at an airport...going round and round irrespective of the wind load on the aerial. Another type of servo is the positional servo which will move from one position to another at a predetermined rate...sort of thing that moves machinery from one position to another.
The servo itself can be hydraulic, electric, or pneumatic. The hydraulic system will need a source of high pressure oil as the ';power'; supply. The electric servo needs electricity as its power supply and the pneumatic servo needs a supply of compressed air as its power supply.
My knowledge is in electric servos and there are 3 distinct types depending on the motor technology. There is the stepping or stepper motor. This type of motor moves a precise angle for a pulse of energy applied to it. The angle of movement is fixed for each motor type and the list of angles is endless. Slight disavantage of the stepper motor is that it's torque output is fixed and if it is stalled then althought energy is being put in at the front end no movement will come out of the motor. The true servo motor can be either AC or DC. Why true servo motor because servos are the high performance motor...the GTI of the motor world. There have to deliver high performance all the time and must not fail so their carefull application is important.
A Rate servo need to have a speed sensor attached to the motor so that the control system can see how fast the motor is rotating. The Positional servo needs to have the speed sensor and a rotary position sensor so that the control system can determine both speed and positional control.
So getting back to your question, I would think that your wire should go to a stepper motor control drive and the stepper motor connected to the drive. By closing your signal the correct number of times you will get the motor to turn 90 degrees.
Good luck
How can i control 4 r/c servos from pc?
i'm mechatronic student on technical highschool and i need this for my bomb robot project.How can i control 4 r/c servos from pc?
Hobby r/c servos use pulse width to control the position. The basic pulse is 1 ms. making this pulse larger or smaller moves the servo.How can i control 4 r/c servos from pc?
not a chance... go ask a U.S. marine. he'll help you determine the speed of a 308.....
RC servos are a staple of the hobby robotics industry. We use them all the time.
The quick answer is a servo control PCB. These are circuit boards made specifically to control servos and be controlled by a PC connection (USB or serial). I carry several in my store. The smallest ones usually control up to 16 servos.
I carry ones by Yost Engineering, Robotics Connection, and Hitec Robotics. There are others made by companies like Parallax, Phidgets or Blue Point Engineering.
I'll assume you want to keep this simple and continue to use your existing transmitters rather than starting from scratch by building your own transmitters -- that'd be a MUCH bigger project. The boards mentioned below would imply that you're willing to be ';tethered';, and your use of R/C in the question implies you wish to remain wireless.
Your typical PWM R/C servo transmitter system uses voltage changes (usually caused through the use of potentiometers/joysticks) to modulate the content of the RF signal that your transmitter to your receiver. You can accomplish the same thing by generating the voltage using D to A (Digital to Analog) circuits. You'll need to meter the circuit to determine typical voltages generated by the pots and generate that same range of voltages externally and feed them into the circuit in place of the voltages created by the pots.
Many companies sell A to D and D to A boards for PCs. Some operate over USB, and others plug directly into the computer's backplane.
You then use those voltages to replace the potentiometers on your transmitters.
You then write simple software to control the output of these D to A boards which in turn control your R/C transmitters.
Some companies you might want to include in your investigation include National Instruments (www.ni.com), and IOTech (www.iotech.com). Measurement Computing (www.measurementcomputing.com) has some reasonably inexpensive USB models that are well worth a look -- see 4 channel unit at the following link:
http://www.measurementcomputing.com/cbic鈥?/a>
Just remember, you need something with qty 4 D to A channels if possible to avoid having to buy multiple units.
Hobby r/c servos use pulse width to control the position. The basic pulse is 1 ms. making this pulse larger or smaller moves the servo.How can i control 4 r/c servos from pc?
not a chance... go ask a U.S. marine. he'll help you determine the speed of a 308.....
RC servos are a staple of the hobby robotics industry. We use them all the time.
The quick answer is a servo control PCB. These are circuit boards made specifically to control servos and be controlled by a PC connection (USB or serial). I carry several in my store. The smallest ones usually control up to 16 servos.
I carry ones by Yost Engineering, Robotics Connection, and Hitec Robotics. There are others made by companies like Parallax, Phidgets or Blue Point Engineering.
I'll assume you want to keep this simple and continue to use your existing transmitters rather than starting from scratch by building your own transmitters -- that'd be a MUCH bigger project. The boards mentioned below would imply that you're willing to be ';tethered';, and your use of R/C in the question implies you wish to remain wireless.
Your typical PWM R/C servo transmitter system uses voltage changes (usually caused through the use of potentiometers/joysticks) to modulate the content of the RF signal that your transmitter to your receiver. You can accomplish the same thing by generating the voltage using D to A (Digital to Analog) circuits. You'll need to meter the circuit to determine typical voltages generated by the pots and generate that same range of voltages externally and feed them into the circuit in place of the voltages created by the pots.
Many companies sell A to D and D to A boards for PCs. Some operate over USB, and others plug directly into the computer's backplane.
You then use those voltages to replace the potentiometers on your transmitters.
You then write simple software to control the output of these D to A boards which in turn control your R/C transmitters.
Some companies you might want to include in your investigation include National Instruments (www.ni.com), and IOTech (www.iotech.com). Measurement Computing (www.measurementcomputing.com) has some reasonably inexpensive USB models that are well worth a look -- see 4 channel unit at the following link:
http://www.measurementcomputing.com/cbic鈥?/a>
Just remember, you need something with qty 4 D to A channels if possible to avoid having to buy multiple units.
Where would i get servo motors and remote controls?
i've been facing problems in buying good and inexpensive servo motors and also i cant find 3 channel remote control which i need urgently can anyone tell mewhere i would get those i live in indiaWhere would i get servo motors and remote controls?
ebay
micromotor...General Electric, Fanuc
what size? what speed?...
D
ebay
micromotor...General Electric, Fanuc
what size? what speed?...
D
How to tell when radio control servos are bad?
Servos pretty much work or not. They either will move when you move the stick or they won't. Sometimes they can ';glitch,'; they will twitch a little on their own- this can be caused by interference or a dirty pot inside. Swap them to another servo channel on your receiver to see if the problem is in the servo itself or in the receiver.How to tell when radio control servos are bad?
when they don't move any more in response to your powerful radio commands, sky captainHow to tell when radio control servos are bad?
lots of static
when they don't move any more in response to your powerful radio commands, sky captainHow to tell when radio control servos are bad?
lots of static
How to build robotic servo with standard Radio Controlled (R/C) interface?
Does anyone know where I can find instructions on how to build high torque robotic servo. I have purchased the most powerful R/C servos available and need more torque and travel. So I'm looking at building my own from scratch. I basically need it to function like a regular R/C servo but with much more torque and travel and it needs to plug into a standard R/C receiver. Thanks, Kevin.How to build robotic servo with standard Radio Controlled (R/C) interface?
There is a magazine I found at the Barnes %26amp; Nobel bookstore about making robots. It's called SERVO. It's a nice and informative magazine. My son totally enjoyed it.
There is a magazine I found at the Barnes %26amp; Nobel bookstore about making robots. It's called SERVO. It's a nice and informative magazine. My son totally enjoyed it.
What is the difference between servo controlled & static controlled?
I am guessing but servo control uses another method (hydraulics, electrics or similar) to apply a force on an object. Static control means that the object is controlled directly by rods, levers or similar devices.
Hope this helpsWhat is the difference between servo controlled %26amp; static controlled?
From the terminology, I assume that you are asking the difference between servo controlled and static controlled voltage stabilizer.
A servo controlled device uses the following:
1. Error sensor to sense the deviation between desired value and actual value
2. Servo amplifier to provide the required gain and time for response
3. Servo motor coupled to an actuator to correct the error
In a static controlled environment, instead of servo motor, there are no moving parts. It uses switching technology (like transistors, thyristors, solid state relays etc) to correct the error.cosmetics online
Hope this helpsWhat is the difference between servo controlled %26amp; static controlled?
From the terminology, I assume that you are asking the difference between servo controlled and static controlled voltage stabilizer.
A servo controlled device uses the following:
1. Error sensor to sense the deviation between desired value and actual value
2. Servo amplifier to provide the required gain and time for response
3. Servo motor coupled to an actuator to correct the error
In a static controlled environment, instead of servo motor, there are no moving parts. It uses switching technology (like transistors, thyristors, solid state relays etc) to correct the error.
About speed control and dc servo motor.?
i want to know about speed control and dc servo motor.If it is possible i want a lab report about it.It should not include about the step response or ac servo motor.About speed control and dc servo motor.?
http://www.animatics.com
http://www.animatics.com
How do i control this servo motor?
ok i found this minebea DC motor at work and now im trying to use it with my microcontroller at home. here is the link to the motor's datasheet:
http://www.eminebea.com/content/html/en/鈥?/a>
the modle that i have is 17PM-K448U which isnt listed in that PDF file but i believe the 17PM-K449U would have a similar control.
well heres my question:
looking at the pin out, there are 6 pins: A, Acom, -A, B Bcom, and -B. from what i know about servo motors there are usually just 3 pins: Vcc, control pin, and ground. and servos use PWM to control its position and direction. how would i control the minebea motor that i have now? the chart in the datasheet shows the frequency to control the torque, but how would i control the position of the motor?
thanks!How do i control this servo motor?
This is a stepper motor not a servo. Servo motors are dc motors with a encoder. unless you're talking about hobby rc servos then im not sure if they even have a encoder.
http://www.super-tech.com/root/grp.asp?p鈥?/a>
http://www.geckodrive.com/upload/Step_mo鈥?/a>
Run the stepper using a,-a and b,-b. Acom and Bcom are center taps for the coils you dont need to use them.
To run it you will need a driver.Depending on what you ant to do. You can build a crappy one that will run the stepper but will be of little use. You can buy a usable ';cheap'; driver from http://www.hobbycnc.com/ or you can buy a good one from geckodrive or rutex.com
http://www.eminebea.com/content/html/en/鈥?/a>
the modle that i have is 17PM-K448U which isnt listed in that PDF file but i believe the 17PM-K449U would have a similar control.
well heres my question:
looking at the pin out, there are 6 pins: A, Acom, -A, B Bcom, and -B. from what i know about servo motors there are usually just 3 pins: Vcc, control pin, and ground. and servos use PWM to control its position and direction. how would i control the minebea motor that i have now? the chart in the datasheet shows the frequency to control the torque, but how would i control the position of the motor?
thanks!How do i control this servo motor?
This is a stepper motor not a servo. Servo motors are dc motors with a encoder. unless you're talking about hobby rc servos then im not sure if they even have a encoder.
http://www.super-tech.com/root/grp.asp?p鈥?/a>
http://www.geckodrive.com/upload/Step_mo鈥?/a>
Run the stepper using a,-a and b,-b. Acom and Bcom are center taps for the coils you dont need to use them.
To run it you will need a driver.Depending on what you ant to do. You can build a crappy one that will run the stepper but will be of little use. You can buy a usable ';cheap'; driver from http://www.hobbycnc.com/ or you can buy a good one from geckodrive or rutex.com
What transmitter and recievers can I buy to control 4 different simple servos?
I have 4 bird launchers for dog training. All have the servo/ electronics built in. They are made to buy a $700 system from dogtra or tri-tronics, but i know i can do it for alot less with another transmitter and reciever. Im sure it is very simple considering the servo only triggers the release mechanism. I need a battery operated system that can be controlled at a maximum distance of about 700 feet. What should i buy and is it easy to hook up to such a simple servo?What transmitter and recievers can I buy to control 4 different simple servos?
I would visit a hobbies store. They have radio transceivers you can use. You should have the specs of the release mechanism.
I would visit a hobbies store. They have radio transceivers you can use. You should have the specs of the release mechanism.
Visual Basic 6.0 Servo Speed Control Question!?
Has anyone out there been able to control speed of a servo with Visual Basic 6.0. My program consists of three position servo controls (have working) and video OCX video control (have working). But with a servo speed control, the synbyte is not working with my Vertical scroll(using two timers--one on each axis). I did some thinking and became aware synbyte of 255 is only for position of the servo--not speed. Does anyone have code for servo speed control (servos have been converted to speed control)? Or is able to use experience?
Thanks,
Jim AVisual Basic 6.0 Servo Speed Control Question!?
Without having programmed in Visual basic, I have some common sense advise.
1) Either you control speed, or position.
2) Check the scaling of the transducers at the program level..Make sure you have enough resolution. The input module should have a resolution 5 to 10 times higher than the transducer itself. Most of the problems stem from interface mismatching
3) You will need a closed-loop PID control program module for either or both speed and position, which will need tuning.
.
Thanks,
Jim AVisual Basic 6.0 Servo Speed Control Question!?
Without having programmed in Visual basic, I have some common sense advise.
1) Either you control speed, or position.
2) Check the scaling of the transducers at the program level..Make sure you have enough resolution. The input module should have a resolution 5 to 10 times higher than the transducer itself. Most of the problems stem from interface mismatching
3) You will need a closed-loop PID control program module for either or both speed and position, which will need tuning.
.
Idle control servo--1996 eclipse gs?
i have done some research on the web and have possibly narrowed down what my problem is--- 1 out of about 5 times I stop at a light my 1996 eclipse 2.0 dohc gs (chrysler american) likes to idle low around 400-500 rpms and now and again to 100 rpms-- do you think this is the idle control servo (motor) I was hoping to get feedback from a Mitsubishi mechanic on this-- one other interesting fact is that when it is at idle at a stop if I turn the wheel and engage the power steering it will idle normally around 800-1000 rpm--- is there a way to clean this component? or should I just replace it? I cleaned the throttle body which was very dirty-- is the idle control servo located on the throttle body? thanks for the helpIdle control servo--1996 eclipse gs?
The idle is computer controlled. Make sure that you have free play in the accelerator cable, if it's too tight the throttle won't close all the way and the idle will not function correctly. You might also pull the plug wires and check for oil in the spark plug holes, It's pretty common on the 420a motors. A new cam cover gasket and the 4 o-rings that seal the spark plug towers will be needed. A sticking EGR valve will also cause a rough idle and that could be the problem since it might only stick once in a while.Idle control servo--1996 eclipse gs?
All good points, in addition you say you cleaned the throttle body... did you spray carb cleaner in there? If so you can very easily short the IAC. It's more common on a Mitsu motor, but it will happen on the 420A also. It usually causes a problem ALL the time however, but just as a point, never spray carb clean in a modern throttle body, just spray a rag and wipe.
The idle is computer controlled. Make sure that you have free play in the accelerator cable, if it's too tight the throttle won't close all the way and the idle will not function correctly. You might also pull the plug wires and check for oil in the spark plug holes, It's pretty common on the 420a motors. A new cam cover gasket and the 4 o-rings that seal the spark plug towers will be needed. A sticking EGR valve will also cause a rough idle and that could be the problem since it might only stick once in a while.Idle control servo--1996 eclipse gs?
All good points, in addition you say you cleaned the throttle body... did you spray carb cleaner in there? If so you can very easily short the IAC. It's more common on a Mitsu motor, but it will happen on the 420A also. It usually causes a problem ALL the time however, but just as a point, never spray carb clean in a modern throttle body, just spray a rag and wipe.
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