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nikolaw

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Posts posted by nikolaw

  3. 3-Axis Stepper Controller

    in Projects Q/A

    Posted


    Hi guys,

    I am new to this field...and wanted to build cnc for hobby...i read the thread and was facinated by this machine can do...

    i'm just wondering if any body have a pcb ready for soldering the parts and how much it is? and please advised for payment method and shipping. ???

    I hope this forum still alive :-[

    Thank you in advance  ;D

    thanks


    Where are you from?

  4. 3-Axis Stepper Controller

    in Projects Q/A

    Posted


    Nickolaw,
    What are the symptoms of the fault? When you say it is not working, what is it doing? Have you checked the power supply? Has something burned on the board? If not, have you checked all settings in the software? Have you slowed down the steps to make sure the motor is not stalled? Have you checked the pulses coming from the board? If you use a slow stepper setting, you can use LEDs to check the stepping sequences. This is a useful tool as long as you step the motors slow enough to see the individual steps with the LEDs. Don't forget to add resistors so that you do not burn out the LEDs.

    MP



    All is ok on board only one UCN5804 broke down and i replace that UCN whit another and everything i s ok bat what can burned UCN's i Use power pc suplly is this big supply?
    should i use
    1. small power supply (i mean in A and V)
    2. or use fuse
    3.how mach is max volts and amperes of power supply what I can use for this board

  5. 3-Axis Stepper Controller

    in Projects Q/A

    Posted


    The chip does not have a high watt rating. If you are using steppers that consume large amounts of energy, you could damage the chip.
    What is the rating of your steppers? What is the rating of the power supply you used?

    MP



    I have a problem
    I build another Bord but one chip broke again i use http://www.doc.ic.ac.uk/~ih/doc/stepper/others/example2/
    and PC power supply
    What is the problem  ??? ??? ??? :'( :'( :'( :'(
    How much Volts and Amperes i mast to use ???????
    PLEASE HELP ME

  13. 3-Axis Stepper Controller

    in Projects Q/A

    Posted


    Nikolas

    How setting your kcam?

    I made 2 boards with ucn5804b and connected it with KCam 4 CNC Controller but the step
    motors are not working !

    do you have working ?  ??? ???

    Please how adjust the parallel port?

    what windows you use? 
    I have windows XP Professional and an other machine have win98SE, no working in the 2 machines
       
    thanks 




    i use XP
    and u mas to do this
    go in port setup
    an do like the pic

    2, 3, 4 - x-, y-, and z-axis step inputs, respectively.

    6, 7, 8 - x-, y-, and z-axis direction inputs, respectively. Direction polarity depends on the motor connections. (to switch direction polarity, simply reverse the motor connections
    end-for-end)

    13, 12, 11 - these PC connections are used to bring the controlled machinery (i.e. X-Y table) to a "home" position. Normally open (N.O.) switches are used here.



    u mast select &H378 or like in your bios see what are you have in your bios port setup
    and select bedirektion in your bios

    post-23046-14279143175314_thumb.jpg

    post-23046-14279143175434_thumb.jpg

  21. 3-Axis Stepper Controller

    in Projects Q/A

    Posted



    It doesn't. It has an on-board 5v power supply circuit with the 7805 regulator. It takes a 8-24v input.

    You connect 12v to the board. It goes straight to the motors. It also goes through the 7805 to provide 5v for the chips.

    Nikolas

    hi
    if i understand you i just need to connect  12V on place were i connect 5V???????

  22. 3-Axis Stepper Controller

    in Projects Q/A

    Posted


    Is this using the schematic in our projects section or a different design? Please provide a link or post the schematic if it is not the one in our project section. We just need to know for sure which layout you are using.
    A 5 wire stepper is usually the same as a 6 wire stepper with only one wire provided to supply the voltage to the center tap of both sets of windings instead of individual wires provided to the center tap of the windings as in a 6 wire stepper.

    MP



    I use this projects
    http://www.electronics-lab.com/projects/pc/008/
    but i have step motors who work with 12V
    how can i conect this steps whit the board
    please help me?
    can u give me mail or msn or skype
    my mail is [email protected]

  23. 3-Axis Stepper Controller

    in Projects Q/A

    Posted

    hi
    my problem is this
    i build board on this proekt whit UCN5804B
    this board use +5v power suply
    but i have some step motors whit 5 wires who works on 12 V
    how can i conect this motors whit this board whet they need 12 V to work
    this motors are from 5,25 floppy (the old one)
    a what to build CNC who will work whit KCam 4 CNC Controller
    can you help me pleas pleas

    post-23046-14279143128864_thumb.jpg

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