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Posted by GregS on March 21, 2008, 11:04 am
Please log in for more thread options >> pogo wrote:
>>> Wondering if anyone knows of ready-made or plans/kits for building your own
> servos using larger motors, feedback resistors or
>>> encoders, and brackets ? The kind of servos I am talking about might have a
> motor diameter of 2-3 inches.
>>
>> Sure. You can get commercial servomotors and motor controllers,
>> and there's more hobbyist grade stuff in that category than there
>> used to be. Trossen and Roboteq have some suitable gear.
>> If you want a more component-oriented approach, here's one:
>>
>> http://www.uhu-servo.de/servo_en/index.htm
>>
>> There are many more; it's not hard.
>>
>> John Nagle
>> Animats
>
>Hi John. Thanks for the info.
>Actually I am looking for something more along the lines of Jim Frye's Monster
> Servo project (
>http://www.lynxmotion.com/images/html/ht01.htm ) but where the motors,
> brackets, etc, come prematched - ready to be assembled.
>
>Something else I would like to see is examples of chaining cheap, low power
> servos together through mechanical means to end up
>with a larger lever mechanism that can lift larger weights than the individual
> servos.
>
>Thanks !
>JCDeen
That just looks like a typical DC motor/resistor/feedback. I used to make
systems using analog controllers.I don't know what type of controller this
has. Most things today would use steppers, but I don't know whats available.
You could complicate it using a computer for processing. For
the system shown, you would basically need a DC power amp and
a 12 to 24 volt DC motor. A power supply and rotary resistor pot and a
differential amplifier to get the control voltage.
greg
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> own servos using larger motors, feedback resistors or encoders, and
> brackets ? The kind of servos I am talking about might have a motor
> diameter of 2-3 inches.