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Thread: Motorized Case Side! Man!

  1. #1
    Anodized
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    Default Motorized Case Side! Man!

    Here is a fantasy of mine, a motorized glissening side of a case that opens when you hit the power button at one end revealing LED fans and UV painted speakers.

    Something like the steroes in the back of the cars at the beginning of "2 fast 2 furious".

    I guess it can be pulled of, if you can adapt the motor to the motherboard control or something.

    Has it been accomplished?

  2. #2
    Paradox Sausage DaveW's Avatar
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    Default Re: Motorized Case Side! Man!

    Not too difficult-simply hook it up to a molex and a large capacitor. When the case starts up, the molex charges the capacitor and opens the case. When the power is cut, then the lack of power triggers a transistor, which uses capacitor power to close the case. Not too difficult to accomplish, but i can't remember which transistor to use, PNP or NPN...sure someone else can drop in. The difficult part is the mounting mechanism.

    An old PSU would provide a capacitor with plenty of charge to close the door, but they can hold a lot of charge, and it could be dangerous, so don't go jumping in there

    -Dave
    Quote Originally Posted by jdbnsn
    Ideas are just knowledge soaked in alcohol.
    Quote Originally Posted by jdbnsn
    Did I just get in a Volvo? Volvo's don't have guns!

  3. #3
    ATX Mental Case
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    Default Re: Motorized Case Side! Man!

    hm....ive done a case with a motorized sidepanel (it open in suicide door style --> that means that the front part opens in an angle up to 90, the back part of the side panel is attached to the case itselfs) but i cannot say anything about the electronics you need for the automation so that it opens when you touch the power button, i open it manual with a different button for both directions open and close....

    thats an older picture of it (next evo version is already down...)....i only use a small servo to open and close it, like those in paintball hoppers or rc cars...


  4. #4
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    Default Re: Motorized Case Side! Man!

    DaveW, can you attach a drawing, that also clarifies how transistors work, I haven't talked electricity since high school physics.

    As for the mounting mechansim, very easy! Attach at the front end, that already where the standard metal side latches in a groove behind the plastic front, and any kind of hinges will do the trick.

    My problem is finding a motor that can do the job, and SAFELY connecting it to the motherboard without frying the board or the motor, especially it will be new gear. Godwilling.

  5. #5
    SOB Fettler xmastree's Avatar
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    Default Re: Motorized Case Side! Man!

    I wouldn't go anywhere near the motherboard with it. Run it off the power supply directly. The only problem is making it close. There is power still available, but not much.

    Depending on the type of door, you could use gravity or a spring to close it. Power on and the 12V is fed to a motor to wind the door open. When it's fully open it trips a microswitch, turning off the motor and energising an electromagnet (steady on Dave...) to hold it against whatever force is trying to close it.

    Remove the power and it closes.

  6. #6
    Paradox Sausage DaveW's Avatar
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    Default Re: Motorized Case Side! Man!

    Xmastree, it's a good idea, but isn't it a little...overcomplicated?

    The type of circuit...hold on, i'll see if i can simulate it with some software.

    -Dave
    Quote Originally Posted by jdbnsn
    Ideas are just knowledge soaked in alcohol.
    Quote Originally Posted by jdbnsn
    Did I just get in a Volvo? Volvo's don't have guns!

  7. #7
    Paradox Sausage DaveW's Avatar
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    Default Re: Motorized Case Side! Man!

    Actually Xmastree's idea is probably the easiest. Although my idea works, it involved a bit more than i anticipated: there were a few things i'd forgotten about.

    -Dave
    Quote Originally Posted by jdbnsn
    Ideas are just knowledge soaked in alcohol.
    Quote Originally Posted by jdbnsn
    Did I just get in a Volvo? Volvo's don't have guns!

  8. #8
    Anodized
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    Default Re: Motorized Case Side! Man!

    I like xmastree's idea, the power can be obtained from the molex supposed to go into the floppy disk drive, I don't need it. But what does this microswitch look like? What triggers it? I mean mechanically?? Electronically?? And the axis of the door would be vertical, from side to side.

    I was thinking something like the motor of an air conditioning unit's splitter or whatever it's called, it just goes left to right or upwards downwards and vice versa. This motor already makes the splitter shut the outlet of the ACU when you turn it off. If the continous up/down movement is shut, maybe it can work. Just shooting in the dark!

  9. #9
    SOB Fettler xmastree's Avatar
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    Default Re: Motorized Case Side! Man!

    The microswitch is like a mouse button switch, and would be activated mechanically when the door touches it.
    http://en.wikipedia.org/wiki/Microswitch
    http://images.google.com/images?q=microswitch
    In the industry it's also known as a limit switch when used in this way.
    Since they're usually changeover switches, it would be easy to divert the power from the motor to the electromagnet when the door is fully open.

    The hard part (IMO) would me making the door close again smoothly.

    I think something like a roller would be easiest. A door made from cloth, which would roll around a rotating vertical rod, and with the opposite edge running in guides to keep it straight.
    As for the closing force, that's the tricky part. A spring would get harder to pull as it is stretched, slowing the door. IMO, gravity would be better.
    Some fishing line or similar fastened to the top edge of the door, round a pulley and hanging down with a weight on the end so that as the door opens, the weight rises. To keep things straight, you might have to fasten some to the bottom edge too.

  10. #10
    Paradox Sausage DaveW's Avatar
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    Default Re: Motorized Case Side! Man!

    Crimson's Doom3 had 2 different types of door on it, one using Servos, and one using and old CD drive motor. Both sweet as hell.

    -Dave
    Quote Originally Posted by jdbnsn
    Ideas are just knowledge soaked in alcohol.
    Quote Originally Posted by jdbnsn
    Did I just get in a Volvo? Volvo's don't have guns!

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