Circular motorization, how can I do it?
Printed From: the12volt.com
Forum Name: Fiberglass, Fabrication, and Interiors
Forum Discription: Fiberglass Kick Panels, Subwoofer Enclosures, Plexiglas, Fabrics, Materials, Finishes, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=54650
Printed Date: April 26, 2024 at 10:42 AM
Topic: Circular motorization, how can I do it?
Posted By: Oznium
Subject: Circular motorization, how can I do it?
Date Posted: April 26, 2005 at 2:34 AM
I want to make a subwoofer box (around 40 lbs) spin. It doesn't have to be super fast or anything. Maybe one rotation in under a minute. My plan is to have 3 of these boxes spin seperately. The wiring is not the hard part for me, but I can't seem to figure out how to motorize it.
Linear actuator? Window motor? Really strong 12v motor with custom gearing?
Replies:
Posted By: bikeboard15
Date Posted: April 26, 2005 at 1:42 PM
a linear actuator or a window motor wouldn't have enough strength to spin it. If you were to use a 12V motor with a chain system, that would do it
Posted By: Oznium
Date Posted: April 26, 2005 at 1:49 PM
So like a 12v motor from a cordless drill? Any ideas of what rpm and torque I should look for?
Posted By: Oznium
Date Posted: April 26, 2005 at 2:25 PM
Would a flange bearing like this (1.5" I.D. is the largest I can find) work for connecting the box to the motor plate? 
Posted By: Lincolnman
Date Posted: April 26, 2005 at 8:57 PM
You might be able to use a serpentine system, like the one that turns all of your accessories on your car's engine. If done correctly you can use one motor (possible from an electric fan or something). You could find the pulleys at a junkyard, buy your belts from the parts store and get the three speakers to spin in different directions and timing (if that's what you're looking to do). Never tried, but it sounds good in theory.
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Nothing is impossible!
Posted By: M&mfabrications
Date Posted: April 26, 2005 at 9:58 PM
How are you going to wire it so that it doesn't get twisted up as the box spins?
Posted By: M&mfabrications
Date Posted: April 26, 2005 at 9:58 PM
How are you going to wire it so that it doesn't get twisted up as the box spins?
Posted By: auex
Date Posted: April 26, 2005 at 11:02 PM
I could have sworn that I brought up spinning ampracks, this ought to get good.
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Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
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I've been sick lately, sorry I won't be on much.
Posted By: Oznium
Date Posted: April 27, 2005 at 2:19 AM
Wiring would be done with 2 metal rings on one side. The other side would have 2 spring loaded metal contacts (sliding van door contacts). I have not tested this, but I assume it will work. If for some reason, a solid connection is not made, I could always just use regular wire and program them to spin approximately 10 times in one direction and then turn around.
Posted By: KarTuneMan
Date Posted: April 27, 2005 at 2:44 AM
WHY.....just ...WHY, Jeeze. How does this have anything to do with good sound? WHO are you trying to impress My God Man, focus on something more important........so WHAT, if you can do this..... WoW...... -------------
Posted By: DukeDuke
Date Posted: April 27, 2005 at 8:00 AM
If he could do it, that would be bad ass, who has done this already? This is the next step, moving stuff. Now, if he put all this money into it, only to run Sony or Pyle then it would be stupid but if he used quality stuff mixed with moving boxes it would he bad ass! Good luck man!
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Duke Duke
Posted By: oonikfraleyoo
Date Posted: April 27, 2005 at 10:43 AM
Sounds complicated but thats what makes it fun. I don't find it very fun to just buy expensive equipment and throw it in. What did you do other than spend money??? Make it look and sound good. Go for it dude. ------------- Nik
Jeeputer Progress
[|||||||||||-] 90%
Check it out.
Posted By: ndm
Date Posted: April 28, 2005 at 10:08 AM
I just might have your answer.....around christmas I saw somethng out the corner of my eye while shopping for after christmas clearance stuf with the wife. It was a christmas tree spinner. It slowly turns the tree but at a pace you can see clearly that its spinning. the base of it is round and kind of large but Im sure it would have no prob turning 40 lbs. I bought it and stored it til I could figure out what I would use it for. It also has a plug for lights that spins with the tree to eliminate that wire problem. I would do a search for one might be easier than you think. ------------- do it right the first time ....or do it again and again and again...
Posted By: ndm
Date Posted: April 28, 2005 at 10:14 AM
oh here is the exact one I have 
https://www.nelsons-christmas.com/stands/revstand.htm says up to 150lband its $94 hope this helps a bit ------------- do it right the first time ....or do it again and again and again...
Posted By: NowYaKnow
Date Posted: April 28, 2005 at 8:22 PM
Not quite a 40 lb box, but here ya go:
https://www.installz.com/amp.html
Also please note I DID NOT do the install and am not trying to take the credit for it. Just saw the vehicle at a show and shot a quick video. Compressed the hell out of the video to make the size somewhat bearable. I apologize for the low quality, but it gets the point across.
Posted By: auex
Date Posted: April 28, 2005 at 8:42 PM
My question to you is, Was the amp functional or was it just for show? I have my own ways on how to do this with a functional amp but they are trade secrets.
-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.
I've been sick lately, sorry I won't be on much.
Posted By: NowYaKnow
Date Posted: April 28, 2005 at 10:05 PM
As far as I know it WAS fully functional. You can see all the wiring is plugged into the amp and running through the center post.
"I have my own ways on how to do this with a functional amp but they are trade secrets."
I thought the whole point of a forum dedicated to our trade was to share info/ideas/secrets/etc.
Mike
Posted By: auex
Date Posted: April 28, 2005 at 10:08 PM
Well, like you said the video quality sucks. It proves a point but I couldn't see anywires. Also some secrets go to the grave.
-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.
I've been sick lately, sorry I won't be on much.
Posted By: Captanham
Date Posted: April 29, 2005 at 8:16 PM
the only problem is,,, i don't know exactly how much power your strips of metal and door transfer pins are going to handel, with big power they might be sparking and arching like a bumper car. haha, also if you only have a wire from one point on the metal strip going to the speaker, as it goes around the total resistance of the circut might slowly go up and down as the position of the conectors change distance from these wires, so think about making multiple conections to limit this, or using some thick metal to ensure high conductance ------------- Bad Boys Customs
audio - video - security
If you use it. Suport it. Donate to the 12 volt!
Posted By: Oznium
Date Posted: April 30, 2005 at 7:09 PM
I appreciate all the help! I am going to order that christmas tree spinner :)
Posted By: Asmodeus
Date Posted: May 02, 2005 at 1:30 AM
Also something to consider using instead of the bearing you showed use a thrust bearing....It is designed to have weight pushed down on it and will not bind under loads... -------------  Making the World A Louder Place
Posted By: ndm
Date Posted: May 02, 2005 at 9:51 AM
philbish wrote:
I appreciate all the help! I am going to order that christmas tree spinner :)
Let me know how it works out for you. I just might pull out mine and do some experimenting ------------- do it right the first time ....or do it again and again and again...
Posted By: mlazzaro
Date Posted: May 02, 2005 at 1:33 PM
I have something that is perfict for that but they might be a little out of what you want to spend. they are made by oriental motor and are the hollow rotary actuators or the DG series motor.
https://www2.catalognavigator.com/orientalmotor/viewitems/linear-motion--1091/dg-series-hollow-rotary-actuators?&plpver=1018&forward=1&backtoname=&pane=
Posted By: Oznium
Date Posted: May 02, 2005 at 5:26 PM
Starting at $1400 
I think I'd be better off fabricating something myself.
But I will look into this anyways and see if I can get some ideas.
Posted By: abovestock
Date Posted: June 10, 2005 at 7:36 PM
You could use a small motor using a small gear running a large gear on the outside circumfrence of your box. The motor would be stationary and would turn the box for you.
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