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rhiro
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Regular user
Southern California
160 Posts

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No problem, Edd.

BTW, Mims also has a book that covers, among other things, timing circuits built around the 555/556 chip:

http://www.amazon.com/Timer-Amp-Optoelec......p;sr=1-2

On page 14 of this book there's a Cascaded Timer circuit designed around a 556 chip. (The 556 is a dual version of the 555.) I think this would work for you if you wanted the card fountain on after a certain delay, then off after another delay. That would shut the card fountain off automatically after it did its thing.

You can also Google "Cascaded Timer" and see what you find. (Knowing the buzz words is often half the battle!)

Have fun,

Ross
wa-na-be
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354 Posts

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If you check out this site you can set it with a remote control for about $35.
http://www.electronickits.com/remote_control/rf2.htm, they also have the timing circuit for sale as a kit or pre-assembled.
Mark McDermott
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Union Mills, IN
111 Posts

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Magicjohn2278,

What is your wheel made from?

How high does your fountain shoot the cards?


Thanks,

Mark
magicjohn2278
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Isle of Man UK
536 Posts

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Wheel is a soft rubber tyre (tire) which is intended for use on a slot-car. The height of the fountain isn't as good as I was hoping for - probably only about 2˝ feet. I could probably get it to go higher if I experimented with different motors, but I found that buying "decent" ones is an expensive option and you can probably find motors which are just as good in kids toys for less cost! To keep the size down, the motor uses a 9v battery.

I found that the biggest problem was the initial force required to get the wheel spinning, once it is going then there is no problem, but it tends to start up very slowly and by the time it is up to speed, it has run out of cards! - More by accident than design, the hinge holding the motor isn't as free as it could be, so that it can be positioned so it isn't actually touching the cards to start off with. This allows it to build up speed almost instantly (as it has no resistance), and the vibration of the motor is enough to get the spring to pull it into the cards. - If I was building another, I wouldn't rely on this method though!

The spring needs to be carefully selected, too weak and it probably won't work, too strong and there will be too much resistance on the motor to get it spinning.

Once the last card has gone, the wheel of the motor enters a rectangular hole in the card holder, contacts the lever of a micro-switch and switches everything off.

The wheel needs to be located near the top edge of the cards so that it provides the maximum "drive" to each card.
Mark McDermott
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Union Mills, IN
111 Posts

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Thankyou for all the info that helps out very much!


Mark
wa-na-be
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I went down to the local Hobby store and picked up a used slot car motor, it runs on 6 vdc instead of the 9 vdc. I am still using th 9 volt battery, gives it more kick. So far depending on pressure it will shoot the regular cards about 3 to 4 feet up, which for me is a bit too much. My kids call it the 52 card picker upper...

Chris
cupsandballsmagic
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Inner circle
2706 Posts

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Quote:
On 2007-09-28 07:39, Mr.Dennis wrote:
I saw lecture where a guy used a fly fishing reel as jumbo card fountain. Accordian folded the cards into the fishing line and actually it was pretty cool. Wish I could remember who it was.
I have the regular size from Contendo. Wish I had purchased the remote control with it.


It's a Billy Mccomb idea, you can find it in his book 25 Years Wiser...
gnl0527
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4 Posts

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I have never been happy with the mechanism in the Rising Card decks that you can obtain from dealers, and have been thinking about the possibility of embedding a small motor in a hollowed out portion of a deck. Does anybody know if such a deck exists or have any ideas on how this may be accomplished?
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