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question regarding rotational motor for speaker 1

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acettc

Electrical
Joined
May 27, 2010
Messages
2
Location
US
Hey all,

I am interested in making a rotary speaker; I have the speaker and encasement completely finished, but I have absolutely no idea what kind of motor I should look at for producing the right torque. Total, the speaker/encasement weighs about 30 pounds (14 kg) , with a rectangular perimeter of 6 inches by 2 feet (0.15m by 0.60m).

Could anyone point me in the right direction? Hard advice would be much appreciated as well; I've been searching the net for information about this, but I haven't been able to find anything specific.

Thanks in advance!

-P
 
You don't have enough application information here. If you don't want it spinning fast, you want constant speed, and you have a very, very free bearing, 5w or so would do it. If you have a lot of friction, want high acceleration, or stop-and-go or reversing then you're going to have a much different situation.

Also, what are you planning to keep the wires from tangling?

-handleman, CSWP (The new, easy test)
 
Thanks so much for posting! I'll try to clarify what you mentioned:

Ideally, I'd like the speaker to spin at around one or one and a half revolutions per second, maximum.

I don't want the motor to produce stop-and-go or high acceleration, but I would like the system to be capable of deceleration. This could probably be accomplished with a simple brake.

I haven't dealt with a torque motor before. Although I am pretty familiar with basic circuitry, I have had very little luck finding things on the Net. If you have any resources or further advice that a newbie such as myself might find useful, I would greatly appreciate it. Anything involving suggested motors, circuit diagrams, etc would be great!

Thanks again for your prompt response.

-P
 
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