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Sensitive Motor? Answered

Im looking for a small, no bigger than half a roll of quarters, dc motor that can be programmed to spin 50ths of a turn. it needs to have some power and not be super expensive, thanks for the help.

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iceng
iceng

7 years ago

Ever hear of a ratchet motor = solenoid.
Or a piezo micro turn a shaft by friction one direction.

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rickharris
rickharris

7 years ago

It may depend on exactly what your trying to do.

Does the motor have to provide a lot of power (torque)

How fast does this action need to be.

How accurate does the 7.2 deg need to be.

Does it have to rotate in 7.2 degrees in steps all the way round the 360 degrees?

Even the lower cost steppers (unless you recover one from a printer etc) will rotate more degrees per step than you need and so will need some gearing - of course this may induce some slop (backlash) to the system making your 7.2 deg even harder to achieve accurately.

Can you give us the application - there may be a better way to achieve this.

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steveastrouk
steveastrouk

7 years ago

Very tricky. Your best option is a stepper motor, because you can't step DC motors without complicated control.