servo Smoothing

[themagician 0]

Hi guys; I am looking for a servo motion smoothing solution that really works - have tried some modules for retracts and flaps, without mich success. Have any of you guys (or gals) found a way to control camera mount pan/tilt/rotation with smooth motion using RC servos/TX/RX. I've looked at some Arduino/Pololu projects for robotics, but this looks like a complex path that I am not willing to go down - if I don't have to.

Any help, links, suggestions will be greatly appreciated.

Cheers...Rob.

Edited December 6, 2009 by themagician

[galaxiex 0]

I have used this servo rate adjuster on a camera pan/tilt setup.

It has worked very well for me...

http://www.dpcav.com/xcart/product.php?productid=16281&cat=255&page=1

Edited December 7, 2009 by galaxiex

[Kilrah 2]

Are you looking for a solution that maintains the stick position = camera position, but slower (which the above link module would do), or one where stick centered = no motion and motion speed is proportinoal to stick deflection (much better overall but might not fit your application)?

[themagician 0]

Are you looking for a solution that maintains the stick position = camera position, but slower (which the above link module would do), or one where stick centered = no motion and motion speed is proportinoal to stick deflection (much better overall but might not fit your application)?

Precisely as you describe in the later - that would be the preference. This would, in my belief, allow the potential for smoother operation which is the objective for now. I recognise that RC equipment has it's limits, but we have gone to some lengths to manufacture a camera housing which is gear driven and bearing mounted so there is no freeplay in that part of the construction - I just need to get the servo(s) to move smoothly and we are there.

Any help you can offer will be much appreciated.

Cheers...Rob.

Edited December 7, 2009 by themagician

[Kilrah 2]

camera housing which is gear driven

Are your servos modified for continuous rotation (potentiometer disconnected) or not?

[themagician 0]

Are your servos modified for continuous rotation (potentiometer disconnected) or not?

One of them - servo at the head for 360 pan - tilt servo not, although it's easily changed over for a CR servo. Roll servo also not, although it will probably stay as is, it does not need to be moved manually...?

[Kilrah 2]

OK. I asked that because if your servo is CR, you shouldn't need to add anything to get the behavior you want. So from what I understand you'd need modules for tilt and roll, right?

This should do what you want.

[themagician 0]

OK. I asked that because if your servo is CR, you shouldn't need to add anything to get the behavior you want. So from what I understand you'd need modules for tilt and roll, right?

This should do what you want.

Cheers..thanks for taking the time to respond, and for the info. I'll give it a try. Regards...Rob.