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  1. #1

    Join Date
    Mar 2019
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    0

    Spare control board for 3040T

    Hi All,
    the X Axis of my 3040T 3Axis (Mach 3 controlled via a parallel interface) is faulty.
    After some verifications, including the exchange of X and Y motors (the 3 step motors are JKONGMOTOR JK57HS41-2004XB-01AF), I can confirm that the power supply section works fine, as well as Y axis and Z axis control sections.
    Of course no schematic was included in the original package of the CNC.
    I think the fastest (maybe also the cheapest) solution would be to replace the step motor driver board (X, Y and Z) with a spare part that should meet the electrical (voltage and current) and mechanical interface (connectors) specs of the original board.

    Can you help me, suggesting the vendor of such control board ?
    Thank you


  2. #2
    Registered
    Join Date
    Jan 2007
    Posts
    474

    Re: Spare control board for 3040T

    Welcome to the group.
    Its hard to for anyone to make any concrete recommendations as we don't have enough info.

    Personaaly I would not go the 'fastest and cheapest' route to finding a replacement. I would go "reasonably priced, good quality and support' route.
    Its a chance to move away from the parallel port as it is becoming more and more difficult to aquire PC's with such a thing, these days.
    I would aviod any chinese options.

    I'm not familar with your specific machine, so don't know what you have.
    There are several good options. Try Googling your question and you will get many answers.
    I personally replaced a chinese USB board with a Ethernet Smooth Stepper ( ESS). It was a big improvement.

    Here are some more:

    https://cncdrive.com/products.html

    https://www.pmdx.com/

    several more I can't think of now....lol

  3. #3

    Join Date
    Nov 2019
    Posts
    2

    Re: Spare control board for 3040T

    Hello all,

    Extreme noob here. My wife purchase a Chinese knock off from eBay the 3040T as she heard me speaking with a friend and thought she would surprise me. Of course it has knock off planet cnc software limited access of course. Instead of saying why would you buy this thing I said thank you and attempted to set it up. I am using a laptop with windows 7 it’s connected via usb. I followed their instructions and went to start it up and only A works to do troll the 4th axis. XYZ and the spindle do not work. If i take the cable for the forth axis and detach it from the motor and attach it to XYZ they work (still plugged in to A on the control box) but the cables for XYZ are not communicating to the carriage and nothing happens. I’m not sure if it’s the cables for xyz or the board. I do like the aluminum frame and it seems solid but not sure what to do. I believe I’m stuck with it now so can i just buy a new board from planet cnc and swap it out, is there a way to test the cables and or board with out having another cnc to swap? Or should i use it for target practice. Thanks in adavance ...lost and confused

  4. #4
    Registered
    Join Date
    Jan 2007
    Posts
    474

    Re: Spare control board for 3040T

    I'm not familar with Planet CNC Software, but does it have Digital Readout for all the axies?
    If so, do the XY and Z axises change when you jog each one?

    Is there somewhere in the software where the motor outputs need to be 'enabled'? Maybe the A axis is the only one that has been?

    With the power OFF, disconnect the Motion Board output to the A Stepper Driver and carefully plug each stepper driver in turn to the A output, boot up and test. Power down, change, power up and test.
    Do all 3 stepper driver /motor combos work ok? If so, all your Stepper drivers and motors are ok.

    Planet CNC • View topic - Motors not moving

    Counterfeit boards:

    Planet CNC • View topic - BEWARE - Chinese counterfeits

  5. #5
    Registered
    Join Date
    Dec 2003
    Posts
    422

    Re: Spare control board for 3040T

    Quote Originally Posted by Hellas22 View Post
    Hello all,

    Extreme noob here. My wife purchase a Chinese knock off from eBay the 3040T as she heard me speaking with a friend and thought she would surprise me. Of course it has knock off planet cnc software limited access of course. Instead of saying why would you buy this thing I said thank you and attempted to set it up. I am using a laptop with windows 7 it’s connected via usb. I followed their instructions and went to start it up and only A works to do troll the 4th axis. XYZ and the spindle do not work. If i take the cable for the forth axis and detach it from the motor and attach it to XYZ they work (still plugged in to A on the control box) but the cables for XYZ are not communicating to the carriage and nothing happens. I’m not sure if it’s the cables for xyz or the board. I do like the aluminum frame and it seems solid but not sure what to do. I believe I’m stuck with it now so can i just buy a new board from planet cnc and swap it out, is there a way to test the cables and or board with out having another cnc to swap? Or should i use it for target practice. Thanks in adavance ...lost and confused
    First things first,what a great wife and does she have any sisters?Can you describe the control software that came with the machine?It would be even more useful if you can post a screenshot as there may be clues.

  6. #6
    Registered
    Join Date
    Mar 2007
    Posts
    2022

    Re: Spare control board for 3040T

    Detailed photos of the inside of the control box will help to identify what you have


    Various Chinese manufacturers of the 6040 cnc routers produce what looks like identical machines but

    use various kits of electronic control boards in side of the control boxes


    In the past they have used either an all in one board incorporating a breakout board and stepper drivers using the unreliable TB6560 IC

    or a separate parallel port BOB and 3 or 4 individual stepper drivers


    The latest machines now incorporate a USB motion controller that you may be lucky enough to receive the correct driver software

    going by posts here to many find the Chinese motion controller useless


    John

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