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Discussion Starter #1 (Edited)
I'm finishing up a cauldron creep and need to add the moving parts, lighting, magic. So, do the parts below work well together?

also, i found it really hard to find a bare bones mp3 player (like without a case) for an appropriate price, any suggestions on that?
 

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That will all work, with a couple of more parts. If you haven't bought everything yet, don't. I would never pay that much for a computer power supply. You should be able to get one at a local thrift store or off Craigslist or Facebook for less than $5. Either way, you'll need to set it up to run everything. You'll most likely need a resistor to make the PS work. The motor should work but again wouldn't be my first choice if you haven't ordered it yet.

Have you done a search on here to see how others have put theirs together and dealt with problems? It might clear a lot of things up before you spend too much money.
 

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I have doubts the power supply will work. It all comes down to one thing: Amps. Just because it spins the motor doesn't mean it will work! Remember that the motor will pull higher amperage under load and if your PS isn't up to par it will fail. When I say fail I mean anything from just dying to catching fire!

The PS should state the output amps. It's usually in milliamps so divide by 1000 to get amps. Hopefully your motor shows the amps too, if not, powering it with a automotive battery charger will show you the general amp load. If the motor draw amperage is higher than the PS output amperage you could have problems.

I recommend (as the safest and best IMHO) using a car battery with a battery charger combined. My setup is using those inside the house with only the DC power cables making it outside. My reasoning is the battery & charger have enough juice to power the motorized props and whatever else you want to run and it is only DC power exposed to the environment (and your TOTs).
 

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Oak Lane Cemetery
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You could always avoid all the complicated components and just use two simple deer motors. Just plug em in and they work. No worries about voltage, amperage, or compatibility. Just saying. Why build something complicated when there is a simple solution.

http://www.kindys.com/products/decorating-accessories/replacement-motors/replacement-motor-48-animated-buck
^^^What he said. That's what I was thinking as I read the original post and was typing my post. For most people if you don't know which ATX PS to use at this point or how to modify it, it's too late.
 

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Those supplies look like they will work with a small motor, but I would do a dry run (run the prop off the PS for several hours) and check for overheating. Warm is ok but you don't want it to be hot. If it gets hot you may have to combine those or find a different power source.
 

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Blaberus craniifer
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you can run several 12volt motors off a computer power supply without any issues. I've had as many as 3 wiper motors and 4 vent motors running off a single 450watt computer power supply one year.
 

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Well, I kinda feel like everyone is naysaying me so I just want to say that I agree with them, your PS will work. For me however, having to watch a prop catch fire and burn during TOT caused me to revise my definition of "it works" to "it works safely". After that experience, safety and reliability in my haunt is tantamount.

I am not trying to tell you that your PS will not work, I am just advising you do the math with the amperage or talk to an electrical engineer about it so you don't end up like I did learning that electricity, fire and children don't mesh well.

Sorry that I am the lone 'opposing' voice, but IMHO, safety trumps cool any day of the week.
 
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