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Type: Posts; User: petsat

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  1. Replies
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    Re: TB6600 drive from EBAY

    Hmm. Are you sure that the spindle cause the problem?
    It could be a number of factors causing that!
    Try some measurements without the spindle connected. Then same measurements with spindle...
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    Re: TB6600 drive from EBAY

    Funny you mentioned that! I have also, due to short circuit, fried a resistor to one of mine.
    Fixing it was a matter of minutes.

    383882

    It seems to me that they need some work on the...
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    Re: TB6600 drive from EBAY

    +1 for the DQ542MA drivers!
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    Re: TB6600 drive from EBAY

    You have put it correctly:

    HOPE THE BEST.

    If you use it "as is" they will prove to be weak in power! That is the reason I messed with it in the first place.

    I must say they are not bad...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    You are in LUCK!
    The whole issue of smoked ICs comes from the fact that the designers of the board did not follow the recommendations set by Toshiba for the powerup and power down sequence.
    There...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    The problem will be when the power will come back! Not at power loss there will be no power present! Both switches will be on simultaneously though and the powerup sequence will be violated. For that...
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    Re: TB6600 drive from EBAY

    Hi guys! Sorry for the late answer but I was away for a few weeks.
    Im not sure I follow you on the questions!!!
    If you study the schematic with all proposed changes you have all the answers!
    I...
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    Re: TB6600 drive from EBAY

    TB6600 analysis and suggested modifications.

    High All,

    After many hours of reading, testing and experimenting I gathered all data that apply to MY Tb6600 board, made all modifications to comply...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    If you want to simplify the power up and power down procedure you need two power supplies DC 5v & DC 24v and 2 switches.
    You remove 7805 Voltage regulator from the board, you connect 5v supply...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    Well, the concept of my design is that I give to the circuit 12v for the "on-delay" (555 ic) and, at the same time, through the 7805 regulator I supply the 5 volts to the 6560 chip. Only when these...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    Couldn't agree more

    petsat
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    Re: How I fixed my Chinese TB6560 controller (updated)

    Wasting time YES! (although I believe that there is no such thing as wasting time in making something better... its EDUCATIONAL TIME)
    Money? ...well the fixes we all suggest here cost a few euros....
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    Re: How I fixed my Chinese TB6560 controller (updated)

    If you fix the known issues the board works as it should, but for how long?. The problem still is the power-up power-down sequence that violates the specifications. If you fix this you secure the...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    Could not agree more on that!

    That is the reason we post here! To help others fix the issues with 6560 controllers.

    By the way, they still sell those controllers without any modification since...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    Those stepper drivers based to the TB6600 chip, also suffer from the same disease that is called "Bad design"

    see here:
    ...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    Cncneeb you are a pioneer!

    As you know pioneers always open the road for the rest of the people! Keep walking!

    Petsat
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    Re: How I fixed my Chinese TB6560 controller (updated)

    cncneeb, just for curiocity, where are you from?
    The way you desribe ti you can do good business by buying cheap and selling at a high price!!!

    Petsat
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    Re: How I fixed my Chinese TB6560 controller (updated)

    A_Camera, my list is not full. It contains the changes and settings needed without digging deep into WindowsXP OS.
    Digging deep might cause more harm than good as you can in other areas of the...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    For the hardware, isn't htere a local market for 2nd hand desktops? Local papers, internet, flea market etc?
    Any friends willing to throw away their old systems?
    As you put it postage is always a...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    Mach3 is designed to run on XP! That does not mean it will not run on win7 but I would stick to the designers suggestion.

    As for the ram the more the better! My system was running with 1Gb ram for...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    First to decide if the laptop is suited for the Mach3 "as is" or it needs some fine tuning you have to run some tests:

    First test. Load mach 3 and open diagnostics screen. On the right side you...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    Dear cncneeb,
    I don't deserve all the credits you gave me.
    All the info I gave here come from all contributors of this forum. My only contribution is the on-off circuit that I designed and made....
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    Re: How I fixed my Chinese TB6560 controller (updated)

    Could not agree more on that!
    The main issue is that the 25pin parallel port gives an output of 3.4 volts. The card needs 5volts to work properly, so there is another issue here. There are always...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    cncneeb, some short answers to your questions:

    1. i will use nema17 steppers for this driver, and i am afraid of burning them with this board which is rated 3.5A. someone, somewhere, i dont...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    cncneeb, I did not use another 74HC14, I have bypassed all optocouplers and removed the current limiting components (transistor,capacitor and resistor) as you see in the following sketch.

    290220
    ...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    A_Camera, look it as an unfinished chinese kit!
    You try to fix it and make it work.
    Enjoy the process!
    The result might dissapoint you but you have learned so many things making this journey! ...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    CNCNEEB, sorry for the late answer, I was away for some time.

    Thread #217 here:
    http://www.cnczone.com/forums/general-cnc-machine-related-electronics/110986-software-19.html

    You will get al ...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    Durango I would suggest the following ESSENTIAL MODIFICATIONS LIST:

    1. NEVER power up the unit without motors connected to the outputs and do not unplug a motor when the board is powered up. The...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    As your board looks different from the old ones I suspect you must read many pages of this forum to verify it is the same design on a different PCB. I wiil suggest starting from page 55 and read #656...
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    Re: How I fixed my Chinese TB6560 controller (updated)

    Hi all,

    The first 3 axes 6560 board I bought from ebay some time ago (www.hyu68.com) blew up after connecting it to the power (12v). The supplier replaced it instantly without asking any questions...
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