making a servo system.....how do i?

[brians04hemi]

i'm attempting to put together a system that will rotate the servo motor back and forth to a postion in relation to the position of a manually operated position switch of some sort. i'm very new at this type of "quest" so i have no clue. thanks for any assistance.

 

[Grossel]

Hi.

Your description is too general. The concept about distance to a predefined position is a very general description of a servo system.

Maybee if you describe what you plan to build, I may be able to help.

 

[alec_t]

If you are using an off-the-shelf servo as used in R/C models then your manual control gubbins just needs to send pulses to the servo at a rate of ~ 40 per sec. The pulse width is in the range 1ms - 2ms and controls the angular position of the servo output shaft.

 

[brians04hemi]

"Your description is too general. The concept about distance to a predefined position is a very general description of a servo system."


this is basically similar to pushing a clutch pedal in a manual shift car. the servo motor would only need to travel back and forth within a range between not depressing the pedal at all and fully depressing the pedal according to how far the position control switch is depressed. as i depress the position control switch the motor moves to a corresponding position. after doing a lot of research i discovered they do make a set up like that for handicapped driving controls. its called a digital accelerator ring. if you get a moment take a look at this sight **broken link removed** its alittle fancier than what i would need but very similiar. please don't think this is for a vehicle. there are no safety issues involved so please dont let these references cause any concern. they are simply the most descriptive references to show what im trying to accomplish.
thanx

 

[brians04hemi]

hi grossel,

i replied to your responce. i posted a reply to my original post instead of tagging reply at the bottom of your responce. doing my best to multitask. i seem to be losing that battle

 

[Grossel]

Here's a drawing that is a very simplified model of a basic servo:

 

[brians04hemi]

that helps thanks.