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View Full Version : Need 12v servos for case mod idea

RangerJoe
06-10-04, 10:34 PM
Alright. I need some servos that will be able to move some stuff (1-2 pounds) maybe 8 inches, then back the other way.

I am not sure where to buy something like that...

http://www.servocity.com/index.html

I found that page. I see that they mesure it in oz per inch (the power that is). So if I need to move 1-2 pounds 8 inches...what does that equate to in servo numbers.....
rhino56
06-11-04, 11:35 AM
16 oz = 1 pound
try www.towerhobbies.com
futaba makes some nice stuff you may want a 1/4 scale servo for some serious power.
RangerJoe
06-11-04, 06:40 PM
I need something that moves slow though, not something that just pops out...
stikphysh
06-12-04, 01:31 PM
what exactly are you trying to do? it may help us find what you are looking for
rhino56
06-12-04, 03:31 PM
you can always use the gears from a cdrom tray to step it down.
whatever your trying to do.
RangerJoe
06-12-04, 11:31 PM
i need to move an LCD
AFIsoldier
06-13-04, 11:28 AM
Those at tower don't just pop up, they can move very slowly, but CAN move very fast. Just use any decent powered motor and gear it to have high torque at low speed and there is your servo.
pwnt by pat
06-13-04, 11:53 AM
make sure you dont use those generic plastic arms though...
I've found that the horns like to snap off during flight when you try to manipulate big control surfaces...
not that I would know or anything :D
rhino56
06-13-04, 01:53 PM
i need to move an LCD
please do tell
ZachM
06-13-04, 03:01 PM
Are you wanting to slide the LCD over using a track and winch system? You'll probably want a servo that is modifiable to turn 360 degrees. Are you wanting to lift it up and swing it over? We need info here.:)
JFettig
06-13-04, 03:30 PM
sounds like a cool idea;) maybe having a lcd facing your side panel and press the on button to the computer and have it fold out:p

I have experience with stepper motors, you need stepper drives for those and whatnots, if your doing what I think you are doing, what you could do is use a regular dc geared motor and limit switches.

Jon
RangerJoe
06-14-04, 01:32 AM
wouldnt i need two motors though. one to push, and one to pull it back in
JFettig
06-14-04, 07:48 AM
no, you could some how make it reverse the current, something that would take a little time to figure out.

Jon
stikphysh
06-14-04, 01:48 PM
have you concidered disasembling a remote controled car? then you could use the controller and everything from it to make it do exactly what you want
OKJEFF4
06-14-04, 03:43 PM
Reversing current would be easy.

Just have switches control each wire and have four different wires.

Normal + -
Reverse + -

As long as only two switches were on at a time it will work. For the off position, they could both be switching to negative. For the on position, you choose the one you want and switch it. Easy as pie.