OpenServo.com

[srosefx]

I have a question for you, maybe its a silly one, but i have been searching for a solution to a problem that i find inherent in servos, i deal in very organic motion, (animatronics) and the typical on off motion of servos fails to impress me, what i need is a damping of motion to allow smoother direction changes.
imagine a graph direction over time, instead of the sharp corners of plotting i would like to see a gradient in speed like a function curve in relation to the timing of direction change.
is there an inbetween circuit that is connected to the servo and the controller that controls the ramping of speed in direction change? -benzier curve interpolation
if that at all is clear in my muddled explanation, can you help me?, or point me in the right direction.
this would settle years of searching and put a curiosity at rest.
regards
simon

[ginge]

Hi Simon,

Welcome!

The OpenServo has an advanced motion profile engine that sounds like like it would do what you are looking for.

If you look at the screenshot on the page below, you will see that we have advanced bezier curve following capabilities.

http://www.openservo.com/Utilities

Instructions for use and programming the motion profile engine are on this page.

http://www.openservo.com/MotionProfile

Hopefully this fits the bill.,

Barry
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[srosefx]

Hi thank you for your reply sir, and indeed the software solution does seem to answer my servo issues, however, as i already use proprietary control software to record and playback servo motion, i would be looking for a way to send my control signals to some kind of critical damping circuit that adjusts the ramping of my motion before sending the corrected motion to my servo.

How would i achieve this?

thanks
simon