×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

question regarding rotational motor for speaker

question regarding rotational motor for speaker

question regarding rotational motor for speaker

(OP)
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

RE: question regarding rotational motor for speaker

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)

RE: question regarding rotational motor for speaker

(OP)
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

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources