I've tried the googles and haven't found much on this. Basically I was wondering if I could use a servo to simply screw a wrench clockwise and counter clockwise?
I have a standup desk that you have to manually crank, and I wanted to automate it using an arduino with a servo.
If there is some other kind of device I should be using I'm open to suggestions!
Thanks!
Can you post a photo of the adjuster on the desk? I can't imagine it from your description.
Normal servos only move through about 160 to 180 degrees - is that enough?
I also wonder if a servo would have enough torque?
...R
You can definitely get a servo that can 360.
I think you'll find that a geared DC motor will be the far more economical on size and power requirements.
Servo's are designed for accuracy and usually lacking in torque, something that completely contradicts the application of a screw driver.
@harddrive123's comment made me think of using the Arduino to control an electric screwdriver.
...R
Geesu:
I've tried the googles and haven't found much on this. Basically I was wondering if I could use a servo to simply screw a wrench clockwise and counter clockwise?I have a standup desk that you have to manually crank, and I wanted to automate it using an arduino with a servo.
If there is some other kind of device I should be using I'm open to suggestions!
Thanks!
Are you the only one using the desk? If so, then an electric motor, a couple of pulleys, a belt and a DPDT, center off switch will be much easier.
If others use the desk as well, or if you have several different heights you like, then Arduino, stepper motor and belts and pulleys may work. You can have the Ardiuno remember the favorite heights and by counting the motor turns, move the table to where you choose.
Coupling the stepper motor to the crank shaft may be the difficult part of the project.
Paul
Hi, have you got a battery powerd drill, try that and see if it will drive the desk.
If so, head for DIY or discount or flea markets and look for anyone throwing out old battery drills.
They should be strong enough, you do not need a servo, just a good motor ,driver board and some limit switches to tell the controller when the table has reached it limits.
Tom..... 
A cordless screwdriver like below might be a good motor option. They are available at walmart also.