Can You Slow Down a Servo?

Can You Slow Down a Servo?
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Can You Slow Down a Servo? - 7/10/2007 1:29:28 PM

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I have a project I am working on where I need to slow down the speed of a servo. If possible, I would like to only slow it down when it is initialized. I do not mean by using the transmitter, but rather something internal to the servo.
Has anyone done this or is this even possible?
Maybe there are certain types of servos that can do this?

< Message edited by rwright142 -- 7/10/2007 1:30:48 PM >

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RE: Can You Slow Down a Servo? - 7/10/2007 1:51:28 PM

Dsegal

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You can use a Jomar "gear and door sequencer". Go to http://www.emsjomar.com/SearchResult.aspx?CategoryID=6

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RE: Can You Slow Down a Servo? - 7/10/2007 1:51:34 PM

Jburry

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many digital servos will allow the rate to be programmed...

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RE: Can You Slow Down a Servo? - 7/10/2007 2:06:17 PM

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Yep....

http://electrodynam.com/rc/EDR-122/index.shtml

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RE: Can You Slow Down a Servo? - 7/10/2007 2:08:51 PM

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Dsegal,
Do these control the initial movement? I have a way of slowing the servo down when I need it to move, but what about when power is initially turned on? Will your suggestions also slow it down at that time? I'll check the website for more info.

Jburry,
I'll research those too.

Thanks!

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RE: Can You Slow Down a Servo? - 7/10/2007 2:13:41 PM

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quote:

ORIGINAL: exeter_acres
Yep....
http://electrodynam.com/rc/EDR-122/index.shtml

Thanks, another great product, but does it slow down the initial movement (when powered on)?
I've emailed several people now and hopefully I'll find a product that will work.

Thanks again.

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RE: Can You Slow Down a Servo? - 7/10/2007 2:54:11 PM

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sounds like expo might be what you're looking for

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RE: Can You Slow Down a Servo? - 7/10/2007 3:21:43 PM

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expo?

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RE: Can You Slow Down a Servo? - 7/10/2007 5:50:15 PM

Scar

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quote:

ORIGINAL: rwright142

expo?

Yes, Exponential. Programming that comes with some radios. The idea is to reduce the stick-to-servo motion ratio, near the zero point. Is that what you want?

If not, perhaps you could make a full explanation of what you are controlling and how you want it to act, perhaps with mention of the names & designations of the model, the radio, the servo, and any other information.

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RE: Can You Slow Down a Servo? - 7/10/2007 6:33:57 PM

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I thought that's what he meant, but I am asking if there is a way to slow the servo down when it initially has power connected.
For example, you turn on your transmitter, then you turn on the receiver. When you turn on the receiver, the servos "center" themself (for lack of a better term). This action is fast. I need to slow this down.

Sorry, I thought I explained what I wanted to do - duh... brain fart. This is why I am asking these questions:

In my Corsair the wings will fold. If I have the wings up but the transmitter switch is in the 'spread the wings' position and I turn on the tx and rx, the servos will quickly attempt to move the wings to the spread position, possibly damaging the wings.

If I have the servo speed adjusted to a slower speed then if/when I make that numskull mistake it won't hurt anything. Obviously, I could just put a note, tape, banner, etc on the transmitter reminding myself to check the switch position before powering everything on, but....

< Message edited by rwright142 -- 7/10/2007 6:36:13 PM >

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RE: Can You Slow Down a Servo? - 7/10/2007 8:12:27 PM

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Check the tansit time on retract servos. I believe they are much slower than regular servos.

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RE: Can You Slow Down a Servo? - 7/10/2007 9:11:46 PM

Dsegal

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Sorry, but I have no further information on this gadget.

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RE: Can You Slow Down a Servo? - 7/10/2007 9:40:22 PM

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I don't know what TX you have. If you have a Futaba 9C you could set a mix to itself for this action. When the 9C is turned on if the mix is active you get a warning. If you get the warning flip the switch and then turn the plane on. If you don't get the warning all is fine. Like I said I don't know what TX you have but others could also have this setup.

David

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RE: Can You Slow Down a Servo? - 7/10/2007 10:07:35 PM

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You could put a switch in line to the servo on that channel.

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RE: Can You Slow Down a Servo? - 7/10/2007 10:30:52 PM

TLH101

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A few options:
http://www.rc-cam.com/ldtastic.htm
http://www.welwyn.demon.co.uk/sslow/sslow.htm
http://smservices.net/acatalog/On_Board_Units.html
http://www.hobby-lobby.com/servos.htm (near the bottom of the page)
http://www.dionysusdesign.com/product_info.php?products_id=164
http://members.iinet.com.au/~lextron/models/slow.html

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RE: Can You Slow Down a Servo? - 7/11/2007 11:45:15 AM

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quote:

ORIGINAL: daveopam
I don't know what TX you have. If you have a Futaba 9C you could set a mix to itself for this action. When the 9C is turned on if the mix is active you get a warning. If you get the warning flip the switch and then turn the plane on. If you don't get the warning all is fine. Like I said I don't know what TX you have but others could also have this setup.
David

I'll have to check into this, thanks.

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RE: Can You Slow Down a Servo? - 7/11/2007 11:46:25 AM

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quote:

ORIGINAL: TLH101
A few options:
http://www.rc-cam.com/ldtastic.htm
http://www.welwyn.demon.co.uk/sslow/sslow.htm
http://smservices.net/acatalog/On_Board_Units.html
http://www.hobby-lobby.com/servos.htm (near the bottom of the page)
http://www.dionysusdesign.com/product_info.php?products_id=164
http://members.iinet.com.au/~lextron/models/slow.html

Nice links, thanks. I have not seen several of these.

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