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privas

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Posts posted by privas

  1. Automate Machine

    in Electronic Projects Design/Ideas

    Posted

    I'm considering use the development board on this link

    http://www.pjrc.com/store/dev_pcb_assem.html
    I like this board because I don't need to buy a pic programmer and it seems to be able to do a lot of different things.

    What do you guys think. Is there a better development board for this application?

    I don't know how to write code but I'm hoping someone can help me with that.

    privas

  2. Automate Machine

    in Electronic Projects Design/Ideas

    Posted

    I would like to automate this machine to bend tubes on it’s own. This machine bends by rolling tubes back and forth multiple times. Please look at picture below to better understand how this machine works.

    What I need to do is put proximity sensors on point A and point B. Run the tube across the machine till it reaches point A, automatically stop, and the run the tube across in the opposite direction to point B, automatically stop, and continue the cycle back and forth.

    As the tube is being pushed back and forth automatically, Roller 1 is moved in a downward direction, by gear driven motor, a little at a time, during each cycle. Currently Roller 1 has a push-button to move it down and a push-button to move it up. I could put Roller 1 on a relay timer that would turn on the motor for 3 to 5 second during each cycle till it is reaches a limit switch that would turn it off the machine.

    Rollers 2 & 3 move simultaneously on one gear driven motor that pushes the metal tube back and forth. The motor has a switch with three positions: Back, Forth and Off.

    The proximity sensor are battery powered that attach to the metal tube with magnets. They have a Normally Closed and Normally Open function.

    What would be great is to put the metal tube on the machine, set the limit switch to the proper height, attach the proximity sensor on the ends of the tube and the press a button to automatically bend the tube. Once Roller 1 reaches its limit switch, have a loud alarm go off for a few seconds and turn off.

    What I need is a schematic showing me how to wire everything together.

    Any help would be appreciated

    post-16666-14279142632561_thumb.jpg

  3. RPM counter that stops machine after 10 cycles

    in Electronic Projects Design/Ideas

    Posted

    I like the switch and finger idea better because the work enviroment is dirty and hazardous. So once the finger hits the switch ten times the machine would turn off. The programmable counter would switch the relay from a normally closed position to a normally open position after the set number of turns has been reached. Then it should reset itself or have a reset button. Can you please make a simple sketch so that I can better understand how to wire everything correctly? Please list components needed.

  4. RPM counter that stops machine after 10 cycles

    in Electronic Projects Design/Ideas

    Posted

    I like the idea. How do I make it. I have a very limited knowledge of electronics.
    I know resistor, capacitors, diodes, relays, different voltages, ac, dc, amps but I can't design anything.

    1) do you have a model number for the ir led and ir detector from a store like radio shack or some other company that you deal with?
    2) what is a 4017 counter? Where can I get one
    3) can you sketch something for me, showing how everything is suppose to be wired.
    4) the machine is just a very slowing turning more with lots of torque. it has a chuck with a 12" diameter. I imagine that the ir led would go attached to the chuck and the ir detector next to the spinning chuck. Now how do I wire the rest?

  6. RPM counter that stops machine after 10 cycles

    in Electronic Projects Design/Ideas

    Posted

    I have a machine that twist metal square tubes. It makes a spiral turns into the tubes to make them more decorative. Problem is that I have to count the turns myself and then manually turn off the machine. I would like to make or buy a device that would turn off the machine after 10 turns. The machine completes 14 turns in about 90 seconds. The machine operates on 110 volts and has a basic on/off switch.

    Any ideas or suggestions?

    post-16666-14279142620673_thumb.jpg

  15. Extend range on a RF remote control

    in Electronic Projects Design/Ideas

    Posted

    I'm trying to increase the range on my remote control. Right it transmits with 1/8 watt. I've heard that the maximum watts allowed on a remote control is 1 watt. so what do I need to modify on my remote control to get 1 watt out of it.

    here is a link to the type of remote control that I'm using. http://www.linearcorp.com/product.asp?product=DNT00052A



    Please tell me what to do as though I was 5 years old.

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