Potentiometer value?

Leticia Project

Hi!

Does anyone know what value the ponentiometer in a parallax standard servo has?
I need to·replace it since I´ve built a circuit that runs a large servo thorugh the standard servo circuit. To maintain the positioning, I will use a linary ponetimeter attached to the large servo.

allanlane5

Hmm. Apparently, he's trying to replace the variable resistor which is inside the Futaba (or whatever) servo that Parallax sells. He's doing this to run a larger 'motor' (I assume) using the standard servo circuitry, new gearing, and a replacement variable resistor.

I don't know -- this kind of 'hacking' is either brilliant, or very innocent, or both. I think a 10 Kohm variable resistor should work. On the other hand, if you're really doing this, why not take out the standard servo variable resistor and measure it?

There are web-sites that explain how to modify a standard servo -- www.kronos-robotics.com is one that comes to mind.

Leticia Project

Thank you!

Actually I could measure it, just thought someone might know, do you think this will work?
I`m very grateful for your help with programming our boat allanlane5!

Amaral

Be carefull with the size of LOAD you are going to put in this circuit, it's designed for a small motor (that is inside the servo) if you put a bigger motor it can damage it (fry)

Amaral.


(I'm not been negative, just trying to help you not to loose you circuit )

Leticia Project

Actually, I´ve built a circuit that runs the larger motor, controled by the servo circuit, so there´s no chance of that [noparse]:)[/noparse]

bennettdan

Leticia do you mind sharing the curcuit you have for the larger motor?

Leticia Project

Of course not! I`ll see if I can find it! [noparse]:)[/noparse]