Author Topic: servo torque  (Read 1429 times)

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Offline crarmTopic starter

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servo torque
« on: January 09, 2009, 06:46:01 PM »
I am making a robotic arm that will have a rototiller at the end. This will only go in the ground about 1 inch. Does anyone have any suggestions on what servo I should use.

Offline want2learn

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Re: servo torque
« Reply #1 on: January 10, 2009, 02:18:48 AM »
For digging the ground I would suggest that a servo wont give you a long service life, I would suggest a motor with a metal geared gearbox. As an example i would find an old 12 volt cordless drill and rip it apart to get the motor and gearbox.
This probably wont give a great service life either but if you replace the brushes in the motor first I'd bet it'll last longer than a servo, probably provide more power(torque) too.
This would mean building a simple H-bridge but adding the costs up it'll be cheaper than a servo too.
The question that drives me hazy:

Am I, or the others crazy?

Offline crarmTopic starter

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Re: servo torque
« Reply #2 on: January 10, 2009, 10:27:16 AM »
What kind of motor would that be. Something I could buy cheaper than buying a new drill (dont have a old cordless drill). Or replace fairly easy if it does die.

Offline ArcMan

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Re: servo torque
« Reply #3 on: January 10, 2009, 02:11:19 PM »
You probably won't be able to get the kind of power you need any cheaper than a cordless drill.
You could check ebay for used cordless drills.

 


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