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Bill Hegbli Eternal Order Fort Wayne, Indiana 22797 Posts |
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On 2012-05-14 17:19, mrmetropolis wrote: Thanks, that is not this current project, I just have to get the current model made. Yes, I solved the ZigZag castle being lifted, but not as of yet with the old house design below it. There are at least 3 type of Card Castles, with supporting cards, without supporting cards, and the old time house model. Right now I am working on the supporting card model, as I referenced above with the Card Castles from India. Any electronic wizards out there, please chime in! |
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remote guy Special user Maryland 534 Posts |
A very simple lifting rod. You can also wire it with a Double Pole Double Throw switch which would let you reverse the polarity allowing you to drop the rod back down.
http://s729.photobucket.com/albums/ww300......0415.mp4 Nick |
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Bill Hegbli Eternal Order Fort Wayne, Indiana 22797 Posts |
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On 2012-05-14 18:20, remote guy wrote: That is excellent looking! How does the rod go down? |
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remote guy Special user Maryland 534 Posts |
[quote]On 2012-05-14 18:32, wmhegbli wrote:
Quote:
That is excellent looking! How does the rod go down? It would have to wired with a double throw switch, pushing the switch in one direction will make it rise pushing the switch in the other direction will lower it. Nick |
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Regan Inner circle U.S.A. 5726 Posts |
Bill,
As it has already been mentioned it seems you would have to have some sort of limit switch to stop the motor. Reversing the motor could be a problem too. Since space is limited, I'm not sure how you could do it. A good solution might be a timer, in which the motor only runs for a set amount of time and then shuts down. A timer should work with the motor in reverse also. I am just brainstorming here, so take it with a grain of salt. Because of the limited space and DC operation, electronics might be the only way to go.
Mister Mystery
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remote guy Special user Maryland 534 Posts |
The easiest way to control it would be with a 2 channel R/C, you would be able to control both the up and down movement of the rod. It would also be the most inexpensive way to go.
Nick |
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billappleton Inner circle Los Gatos, California 1154 Posts |
The puppet guys have limit switches. This is like a micro switch that limits the travel in both directions.
http://www.bpesolutions.com/mechoduct.html also check out nylon gear racks. This is headed in a complex direction, I wish we had something simpler. How fast does it need to go up? What is the total height? How fast to go down? |
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blamobox New user A shed in Somerset England 52 Posts |
My first post in the Café guys. I'm very interested in the workshop forum, so hi!
On topic, I would check out the Arduino Software,I'm just learning to use it, fantastic and you get plenty of help from the experts. You could program a stepper motor to do all of what you need, turn so many revolutions then reverse etc. Hope this helps. http://www.arduino.cc/
Time Ticks Away Like a Peanut............
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Bill Hegbli Eternal Order Fort Wayne, Indiana 22797 Posts |
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On 2012-05-15 10:29, billappleton wrote: Bill, the speed up would be like a rising card, steady and medium. The height is about 17" to 24" high. Going down is to take it home, it will stay up as mentioned previously. But now that you ask, if making a collapsible card castle, of course it would just drop, as in the cards falling, so a release would let it disengage to drop. |
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Bill Hegbli Eternal Order Fort Wayne, Indiana 22797 Posts |
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On 2012-05-15 12:46, blamobox wrote: That is a very interesting piece of hardware. Magic into the 22nd Century, cool! |
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TheRaven Special user 597 Posts |
I buy lots of motors from here. https://www.surpluscenter.com/. Look for DC gear motors. Look for low RPMs and a voltage you can provide with a battery.
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AGMagic Special user Cailf. 775 Posts |
Quote:
On 2012-05-14 18:20, remote guy wrote: Nick has a simple and workable solution. The only addition I would make is to put a sleeve around the bottom of the rising stick (much like the weight in your drawing)and use that to actuate a limit switch to stop the motor. As suggested, a DC gear motor will work well. You can use a toggle switch to reverse polarity to the motor to lower it but this will require a diode across the limit switch to allow the current to flow in the opposite direction. Speed can be adjusted by varying the size of the winding wheel on the motor.
Tim Silver - http://www.facebook.com/pages/Magic-Woodshop/122578214436546
I know you believe you understand what you think I said, but I am not sure you realize that what you heard is not what I meant. Visualize Whirled Peas! |
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Bill Hegbli Eternal Order Fort Wayne, Indiana 22797 Posts |
Quote:
On 2012-05-16 14:37, AGMagic wrote: After a lifetime of wishing, it looks like this idea will finally happen, thanks to all the very smart members of the Café. Anyway, it is finally off the ground, and I have to express my gratitude to all who have helped. I am assembling the parts one by one, I only hope they are the correct parts. AG Magic, I found this way to wire - see illustration to wire a 3 position switch to make it a forward and reverse switch. There is no mention of a diode, but I guess I will see if the wiring works, when trying to wire the components together. Yes, and I agree that this is getting more complicated then I thought. Now I have to figure out how to make the components fit in the space under the table and work together to make a Card Castle rise. AG Magic, thanks for an additional solution to this simple/complex project. Click here to view attached image. |
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remote guy Special user Maryland 534 Posts |
Hi Bill,
The switch in the diagram will enable you to raise and lower the rod. Nick |
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Bill Hegbli Eternal Order Fort Wayne, Indiana 22797 Posts |
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On 2012-05-16 16:15, remote guy wrote: Hurray!! Thanks again remote guy for verifying the wire diagram. Now all I have to do is buy one and figure out what wire goes where. Oh, now I have to buy wire. |
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AGMagic Special user Cailf. 775 Posts |
Bill, If you put a limit switch in series with the switch in your diagram and the motor you can make the motor stop when the castle reaches its full height by breaking the electrical circuit when the limit switch is actuated. Unfortunately, the open circuit created by the actuated limit switch will not allow current to flow in the opposite direction to allow the motor to reverse. A diode placed in parallel with the contacts of the limit switch will allow current to flow until the switch is no longer actuated. The diode should be oriented to block current flow in the forward direction and pass it in the reverse direction of the motor. You will need both the reversing switch in your diagram and a limit switch in series with the motor if you want the motor to reverse and to auto stop.
Tim Silver - http://www.facebook.com/pages/Magic-Woodshop/122578214436546
I know you believe you understand what you think I said, but I am not sure you realize that what you heard is not what I meant. Visualize Whirled Peas! |
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AGMagic Special user Cailf. 775 Posts |
Bill, one other thought. The reversing switch that you buy (double pole, double throw) should also be CENTER OFF. Otherwise there is no way to stop the thing when it is reset.
Tim Silver - http://www.facebook.com/pages/Magic-Woodshop/122578214436546
I know you believe you understand what you think I said, but I am not sure you realize that what you heard is not what I meant. Visualize Whirled Peas! |
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Bill Hegbli Eternal Order Fort Wayne, Indiana 22797 Posts |
AG Magic, thank you for your intelligent response on this, as I have not decided whether to use the reverse switch, except to lower the rod after the show, to take it home. It may be good to not have to trigger or release the Limit Switch to do that.
Can you give me a reference to a diode that will work with this? As the only thing I know of Diodes is that they told me to solder these to boards when I was once working in a factory, beyond that I am lost. So far the motor will run off a 9 volt battery, if that helps. Yes, Googling, I found the term DPDT for the switch. Are you also saying a limit switch is needed for the reverse as well? As I have a limit switch for the rising planed in this project. |
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AGMagic Special user Cailf. 775 Posts |
Bill, the limit switch is suggested is only to stop the motor automatically when the castle reaches its full height. It is not needed for the reversing circuit. I am headed out to work now but can e-mail you a ciruit diagram of what I am proposing sometime tomorrow. Virtually any diode you can buy at Radio Shack or the like will suffice. It needs to be able to handle the current of the motor and have a Peak Inverse Voltage (PIV) rating of about 100Volts or more. The high PIV rating is required because when the magnetic field created by the current flow through the coils of wire in the motor collapse as power is removed, the collapsing magnetic field moves through the wires creating a generator which can produce a voltage spike of the opposite polarity which may be several times higher than the original applied voltage, thus causing damage to the diode. I hope that make sense. I can clarify later but I must leave now.
Tim Silver - http://www.facebook.com/pages/Magic-Woodshop/122578214436546
I know you believe you understand what you think I said, but I am not sure you realize that what you heard is not what I meant. Visualize Whirled Peas! |
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hugmagic Inner circle 7655 Posts |
Bill,
I will sketch up a complete diagram for you and get it out today sometime for you. It should make it pretty easy to make this up but you will have do a little modification here and there. Richard
Richard E. Hughes, Hughes Magic Inc., 352 N. Prospect St., Ravenna, OH 44266 (330)296-4023
www.hughesmagic.com email-hugmagic@raex.com Write direct as I will be turning off my PM's. |
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