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Author Topic: sound with steppers  (Read 1720 times)

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Offline frank26080115Topic starter

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sound with steppers
« on: October 31, 2007, 07:35:17 PM »
so there i was, all bored in computer engineering class, playing with a hard drive that has been recently violently violated with a few screw drivers, it looked kinda like a record player and my thoughts jumped to DJs

What if i wired up the stepper motor to a opamp? i'm hoping from the nature of stepper motors, different spinning speeds can generate a different tone. Think it will work?

Offline Admin

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Re: sound with steppers
« Reply #1 on: November 01, 2007, 11:20:12 AM »
if you can get it to run at an audible frequency (several kilohertz, but don't remember the exact frequency range), theoretically yes . . .

have you seen this?
http://www.afrotechmods.com/cheap/hdspeakers/hdspeakers.htm
(my roomie from college did this)

Offline bens

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Re: sound with steppers
« Reply #2 on: November 01, 2007, 11:29:03 AM »
Audible frequencies range from around 20 Hz - 15 KHz (young people can often hear to between 20 and 30 KHz, but sensitivity to high frequencies decreases with age).

Offline Rebelgium

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Re: sound with steppers
« Reply #3 on: November 02, 2007, 05:14:03 PM »
there's also a good tutorial on how to make a HD speaker on instructables.com
Just search for it, it's pretty easy :)
To relax after some hard work on robotics: A very fun free online text based MMORPG
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