512,281 active members
2,421 visitors online
Register for free
Login
IndustryArena Forum > CNC Electronics > Hobbycnc (Products) > OK I can't find the problem gremlin and it's driving me crazy...
Results 1 to 5 of 5
  1. #1
    Registered
    Join Date
    Dec 2014
    Posts
    1

    OK I can't find the problem gremlin and it's driving me crazy...

    Hello Everyone!

    I would appreciate some guidance here...

    I purchased a 3 axis HobbyCNC EZ Rev0 Chopper driver board and soldered it together. Tested voltage as per instructions and its correct.

    Power supply is a Meanwell NES 350-24v with 14.6 amps output

    I am trying to run 3 Powermax II P22NRXG-LNN-NS-00 stepper motors

    My computer is a Windows 7 machine and did not come with a parallel port, so I purchased a PCI-E 1284 DB25PIN card and installed it. I also purchased a cable and tested it for continuity with my multimeter, the pins are indeed straight-through (some posts suggested weird wiring inside the cable could cause issues)

    I have the 8 wire motors wired up as:
    B - blue
    b - orange
    COM - 2 black wired into one COM terminal
    COM - other 2 black wired into other COM terminal
    a - red
    A - yellow

    Using Mach 3 I have the Ports & Pins setup as:
    X axis pins 2, 3
    Y axis pins 4,5
    Z axis pins 6,7

    Everything else I can see is set to Pin 1.

    I plug this baby in, turn it on and I cannot seem to get anything to happen. No noises, no nothing.
    What simple but painfully obvious step have I missed here?
    I appreciate your help!

  2. #2
    Registered
    Join Date
    Mar 2007
    Posts
    2060

    Re: OK I can't find the problem gremlin and it's driving me crazy...

    Hi Dakk


    with the power on are the motors locked in position ?

    if the reference voltage on pin 13 is over 2v or none of the mode jumpers are fitted the stepper driver IC goes into sleep mode

    a while ago I tried a printer port adaptor in a PC but I could not get it to work
    from what I understand not all IC's used in the adaptor cards work with Mach 3

    you could try building this tester from Geckodrive.com :-

    Attachment 262582

    It could make it easier to prove the HobbyCNC board is working

    without a logic probe it can be difficult to test the step pulses from the printer port
    you will not se them with a multimeter


    John

  3. #3
    Registered
    Join Date
    May 2009
    Posts
    36

    Re: OK I can't find the problem gremlin and it's driving me crazy...

    Is the address of the card correct and the same in M3?

  4. #4
    Registered
    Join Date
    Mar 2007
    Posts
    2060

    Re: OK I can't find the problem gremlin and it's driving me crazy...

    since the mother board had no on board port I set the adaptor to 0378 hex ( mach3 default address)

  5. #5
    Member
    Join Date
    Jan 2005
    Posts
    10680

    Re: OK I can't find the problem gremlin and it's driving me crazy...

    Dakk

    Mach3 does not support a Parallel Port in windows 7 64bit, you will need a UC100,or a Smooth Stepper Etc to use Mach3 with windows 7, I have seen others have the same problem using windows 7 with trying to use a Parallel Port

    32bit can work with a Parallel port but if you have 64bit it is not going to work

    Have you checked the output from the Parallel port
    Mactec54

Similar Threads

  1. PLZ HELP!!! Probotix driving me crazy!!
    By Blairfab in forum Community Club House
    Replies: 10
    Last Post: 11-07-2013, 03:14 AM
  2. blackouts are driving me crazy!!!!
    By carlo mateo in forum Safety Zone
    Replies: 15
    Last Post: 01-23-2013, 05:00 PM
  3. Protel is driving me crazy
    By ez-cnc.com in forum General CNC Machine Related Electronics
    Replies: 3
    Last Post: 03-30-2010, 06:54 AM
  4. Gcode its driving me crAZY
    By frankg521 in forum G-Code Programing
    Replies: 30
    Last Post: 09-20-2007, 01:17 AM
  5. Aligning cross table is driving me crazy. Ideas?
    By pigifly in forum Uncategorised MetalWorking Machines
    Replies: 4
    Last Post: 07-07-2004, 08:45 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •