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Question #: 13585

Question: Where is pin 2 and 3 on mach3 USB breakout

Current Solution

The Mach3 USB Breakout board (USB Interface) does not have numbered pins like on the parallel breakout board. Instead, the pins are labeled to the device (driver, relay, etc.) that they plug into.

The communication from Mach3 is sent over USB cable D- and D+ (data lines). The communication is in the form of instructions rather than steps pulses and direction signals like on the parallel breakout board. The instructions are signals like "move the x axis to this coordinate" and the microcontroller on the board interprets that instruction and creates its own step and direction signals to the terminals on the board that plugs into the drivers and other devices.

If you follow the diagram below you should not have any problems.
https://www.buildyourcnc.com/Documents/Electric%20Wiring%20Diagram.pdf

Remember to provide power to the I and O terminals as per the diagram.


Additional Information:


Additional Information:
How would you connect a laser to the USB control board?

Additional Information:
How would you connect a laser to the USB control board?

Additional Information:
How would you connect a laser to the USB control board?

Additional Information:
How to wire a laser to usb mach3 control board?

Respond:

Other Possible Solutions to this Question

  • WILL THE USB BREAKOUT BOARD WORK WITH MACH3?

    Sure, the USB interface has a place for 4 axes of limit switches.

    Each axis can have two limit switches: one for the ++ (positive) end and one for the -- (negative) end. The positive end would be the limit switch at the end of the machine that, say the machine has a 4'x8' area, reaches a bit after the 8 foot mark. The negative end would be the limit switch behind the 0 foot location behind the origin. If the origin is in the middle, the negative would be at a little more than the -4 foot end and the positive would be at a bit more than the +4 foot end. Note that you can have more than one switch on each pin where the NC is connected in serial fashion and the NO is connected in parallel fashion (this can be seen on the diagram in the multiple limits switch section). The software configurations for the limits switches are under File -> Settings -> Limit.

    A typical limit switch has three connections on it. These connections consist of COM (common), NC (normally closed) and NO (normally open). The COM would generally go to GND and the NC or the NO would go to the pin. If the NC is used, then the the switch is constantly connected until the switch is pushed (engaged) then the connection from the pin to gnd is broken (open). Use the settings in software to set whether in NC or NO configuration.

    Let me know if this information was helpful (or not) by adding information to this question. Thanks.

    User response:
    Thank you very much for this helpful information. I'm still a little fuzzy on how the 6 limit switches physically connect to each other and to the USB breakout board. You've stated one switch (home) goes to positive and another switch (limit) goes to negative. Are all the GND prongs from all 6 switches connected to each other and going to GND on the breakout board, or no? And the NC prongs, how exactly are they connected to each other? And to the board? There has to be a diagram somewhere shows this visually, no? I don't know how to wire the switches in series or in parallel. I have already physically installed all the switches on the machine and ran the wires to where the board is. Now I just need to know where to plug these wires into the board. Also, taking into consideration that I'm using the Planet CNC software, the only settings I have pertaining to limit switches is "Enable/Disable" for each axis, and the actual limit for each axis. Nothing about NC or NO. Is that only in Mach3?
    Thank you.

    buildyourcnc response:
    On the USB interface, the COM on the switch connects to GND and the NC or NO connects to the input pin (i.e. x++, y--, etc.)

    Limit switch configuration is rather difficult to understand, especially with series and parallel. You can think of series as a single wire going from GND to the axis letter input terminal (i.e. X++ or X--). If the wire is broken, then the circuit is open (or the switch is engaged in a normally closed scenario). Normally closed is like an actual wire, and when engaged, the switch "opens" (breaks the wire). This is why we recommend in some systems that you can put many switches in series on a single pin. When one of the switches is engaged (breaking the connection) then the entire circuit of switches is broken and the machine stops.

    In a parallel scenario, the state of the circuit is always broken until the one of the switches is engaged and the circuit is then closed or connected. The topology looks like a ladder. All the switches connect to both sides of the ladder and the switches are like the runs of the ladder (the horizontal bars that the feet are placed while climbing). Imagine all of the switches broken in this scenario (normally open). It would be like the ladder could be split in two, but if one of the ladder runs (switches) is closed by engaging it, then that run would connect both sides of the ladder and the two sides of the ladder would have a connection.

    There is a diagram on the USB page of the various limit switch configurations. If you need more information (visual and/or otherwise), please let us know and we will immediately add that information to benefit everyone.

    Click the link to add information to this solution:
    WILL THE USB BREAKOUT BOARD WORK WITH MACH3?

  • Will the USB breakout board work with Mach3?

    Our newer USB board will work with Mach3 and can be found here at this URL:

    https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

    Additional Information:
    Mach3 breakout board including software

    Click the link to add information to this solution:
    Will the USB breakout board work with Mach3?

  • What power supply do you recommend for the spindle and limit switches if I buy the USB Mach3 breakout board?

    Any of the following power supplies will be fine for powering the Mach3 USB controller:
    https://www.buildyourcnc.com/item/24v

    however, the limit switches do not need high current, so the following power supply is sufficient for the task of connecting limit switches:
    https://www.buildyourcnc.com/item/electronicsAndMotors-power-supply-24v-1a-dc

    Click the link to add information to this solution:
    What power supply do you recommend for the spindle and limit switches if I buy the USB Mach3 breakout board?

  • Need wiring diagram from mach3 USB breakout board to inverter.

    I suppose you are trying to determine how to connect the VFD tothe relay on the breakout board. This is possible, however, not recommended as there is a more robust way to connect the VFD to mach3 or mach4 that allows that CNC machine control software to control the speed and other features of the VFD.

    Follow the instructions from this question (number 13383):
    https://buildyourcnc.com/FAQ/13383

    To get to this answer, you can also ask this customer service "How can I connect my spindle's VFD to mach3?"

    Additional Information:
    If you still want to connect the VFD through the relay, I will clarify this instruction on this question tomorrow as I don't have the information in front of me at this moment. Thanks.

    Click the link to add information to this solution:
    Need wiring diagram from mach3 USB breakout board to inverter.

  • I have a CNC Machine from China, and the Breakout Board is not Labeled. Is there any way to test the board using Mach3 to find out the pin designations? db25 bob

    (These steps are to be taken with precaution, due to the fact that we do not know the model or manufacturers specifications for your BoB)

    Here is a link to our CNC electronic videos(

    &list=PL122021172205E9AA&index=1).
    Try using this to compare the one you have to our older model version BoB, try setting up your X-axis to work wiring it to your driver and motor, and power supply.
    For further assistance email: customerservice@buildyourcnc.com

    I would recommend trying to contact them if possible to avoid any serious damages to your product.

    Click the link to add information to this solution:
    I have a CNC Machine from China, and the Breakout Board is not Labeled. Is there any way to test the board using Mach3 to find out the pin designations? db25 bob

  • I am wiring my breakout board and it has a USB port on it. Is the USB port there to supply the 5 volt power to it?

    For our parallel breakout board (https://www.buildyourcnc.com/item/electronicsAndMotors-parallel-breakout-relay#prettyPhoto/2/) the schematic will show the connections going from the BB to the drivers. The parallel breakout board uses the 25 pin parallel connection to communicate from the computer to drivers, and the USB is used to power the main-board itself, supplying 5V.

    Click the link to add information to this solution:
    I am wiring my breakout board and it has a USB port on it. Is the USB port there to supply the 5 volt power to it?

  • Should I connect both the USB and the 25 pin connector of the parallel breakout board to the computer?

    The parallel breakout board has the db25 connector for data and the USB connector for power. Connect the USB from the computer to the parallel breakout board so the breakout board will have 5V of power coming from the computer. The db25 connector (connector with the 25 pins) receive data signals for each pin from 1 to 17 and have respective numbered screw terminals, some for input and some for output (18 to 25 are gnd pins).

    Click the link to add information to this solution:
    Should I connect both the USB and the 25 pin connector of the parallel breakout board to the computer?

  • What is the usb port for on the 5 Axis Breakout Board with Relay ($28.50)?

    The USB port located on the parallel 5 axis breakout board is for powering the board. There is no communications related to this port.

    Click the link to add information to this solution:
    What is the usb port for on the 5 Axis Breakout Board with Relay ($28.50)?

  • Can you control the spped of the 2.2 KW spindle using the breakout board and Mach3 soft ware?

    Yes, you can control the speed of the 2.2 kW spindle, and the other spindles we sell, through Mach3 software. It requires making some changes to the settings in Mach3 and in your inverter. It also requires an additional part, which is called a USB to Serial Converter, found on our site here:

    https://www.buildyourcnc.com/item/Interfaces-newbiehack-Interfaces-TTL232R-USB-UART-Serial

    I have some additional instructions, that I will send upon request, by email. I will also be adding a complete tutorial and video, to the website, on how to do this soon.

    Additional Information:
    20

    Click the link to add information to this solution:
    Can you control the spped of the 2.2 KW spindle using the breakout board and Mach3 soft ware?

  • Will Mach3 USB Interface board fit in my redleaf, in lieu of the breakout board that came with it?

    The Mach3 USB board will fit in the redLeaf, but you may need to modify the Plexiglas top for proper mounting. However, the redLeaf has the proper parallel GPIO on the motherboard for use with the Parallel breakout board. If you have a laser on the machine you are using, then I would urge you to maintain the parallel breakout board as the Mach3 USB board will not work correctly using the Z-direction pin and you will need to determine how to use the output pins onthe USB board to ensure proper laser functionality.

    Click the link to add information to this solution:
    Will Mach3 USB Interface board fit in my redleaf, in lieu of the breakout board that came with it?

  • In a Windows configuration, Using the USB breakout board, is the Planet-CNC software used in conjunction with Mach3 or in place of it?

    Mach3 is not compatible with the USB breakout board, so you need Planet CNC in its place.

    Additional Information:

    I am confused by this same issue. I am using the Mach3 USB interface board with Mach3 and it works fine. In fact a video of it is on this very website. (link below)

    Is the Mach3 USB interface board the same thing as Planet-CNC USB board?
    It has been stated on this FAQ that it cannot be used with Mach3 and can only be used with Planet CNC USB software.

    https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

    Click the link to add information to this solution:
    In a Windows configuration, Using the USB breakout board, is the Planet-CNC software used in conjunction with Mach3 or in place of it?

  • WHATISTHE DIFFERENCE WTIH THE PARALLEL BREAKOUT BOARD AND USB BOARD?

    The parallel is the most versatile breakout board we have and will work with most of the software out there, but many computers are not equipped with parallel connectors anymore. Parallel adapter cards are available if you don't have a parallel connection on your computer.

    The USB interface must be used only with the planet-cnc software, which is great software, but you are still limited to only that software application. This is actually the least expensive option unless you use linux and go with the above option.

    Click the link to add information to this solution:
    WHATISTHE DIFFERENCE WTIH THE PARALLEL BREAKOUT BOARD AND USB BOARD?

  • is Planet-CNC USB Board and Mach3 USB Board the same

    Mach3 is not compatible with the USB breakout board, so you need Planet CNC in its place.

    Additional Information:

    I am confused by this same issue. I am using the Mach3 USB interface board with Mach3 and it works fine. In fact a video of it is on this very website. (link below)

    Is the Mach3 USB interface board the same thing as Planet-CNC USB board?
    It has been stated on this FAQ that it cannot be used with Mach3 and can only be used with Planet CNC USB software.

    https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

    Click the link to add information to this solution:
    is Planet-CNC USB Board and Mach3 USB Board the same

  • Can I use your USB interface board and Mach3 on my 3 axis CNC router?

    Planet-CNC is the control software. If you decide to use the USB controller, you will need to use the planet-CNC software as the control software. You will be able to use any of the CAM software applications with the planet-CNC control software.

    Click the link to add information to this solution:
    Can I use your USB interface board and Mach3 on my 3 axis CNC router?

  • WHAT'S THE DIFFERENCE BETWEEN PARALLEL BREAKOUT BOARD AND USB ITERFACE?

    The parallel (printer cable) port is uses the computer as its main source of pulse trains to operate the motor driver directly. Parallel ports are a direct connection from the processor commonly referred to as GPIO pins (General Purpose I/O pins) and provides a convenient and powerful way to interface with the computer. The parallel breakout board is included in those kits only to condition those signals for use with the drivers.

    The USB serves at the actual controller, sending the pulse trains, but the computer sends simple human readable instructions to the USB controller to tell the controller how to send pulses.

    The non-technical differences that may serve as the most important information to you is that the parallel configurations allow for a wider variety of industry standard software that can be used to control the cnc machine. The USB that we offer requires the operator to use a software called Planet-CNC software which is a very well made and feature full cnc control software.

    Additional Information:


    Additional Information:


    Additional Information:
    USB Motion controller breakout board work with planet cnc software?

    Click the link to add information to this solution:
    WHAT'S THE DIFFERENCE BETWEEN PARALLEL BREAKOUT BOARD AND USB ITERFACE?

  • Is there a wiring diagram for hooking up your hex inverter between your USB breakout board and the controller?

    The use of the hex inverter in the application to invert a direction signal to have a motor run in the reverse directions is relatively simple.

    First, go to this link and look at the chip diagram:
    https://www.buildyourcnc.com/item/electronicsAndMotors-hex-inverter-breakout-newbiehack-integrated_circuits-hex-inverter

    Connect 5V from the USB interface tothe VCC pin. The pin on the keyboard jog header can be used. Connect the GND pin from the USB interface to the GND pin on the hex inverter. Connect the CW terminal from the USB interface to the 1A pin on the hex inverter. Connect the 1Y pin from the hex inverter to the driver.

    Additional Information:
    I got a question??? I am a dummy when it comes to cnc. I got 6040 1500kw water cold engraver 3 axis from china. I can not get anything out of them pertaining help they keep telling me the same thing over and over and over and I'm doing it and send them pictures that I know. Anyway email me a wiring diagram for the PRT 1500 watt spindle motor control box and has the emergency stop on and off switch manual PC and of course yhe screanm fultonsbusiness@gmail.com

    Additional Information:
    I got a question??? I am a dummy when it comes to cnc. I got 6040 1500kw water cold engraver 3 axis from china. I can not get anything out of them pertaining help they keep telling me the same thing over and over and over and I'm doing it and send them pictures that I know. Anyway email me a wiring diagram for the PRT 1500 watt spindle motor control box and has the emergency stop on and off switch manual PC and of course yhe screanm fultonsbusiness@gmail.com

    Click the link to add information to this solution:
    Is there a wiring diagram for hooking up your hex inverter between your USB breakout board and the controller?

  • I need wiring diagram from mach3 breakout board to hy inverter

    I suppose you are trying to determine how to connect the VFD tothe relay on the breakout board. This is possible, however, not recommended as there is a more robust way to connect the VFD to mach3 or mach4 that allows that CNC machine control software to control the speed and other features of the VFD.

    Follow the instructions from this question (number 13383):
    https://buildyourcnc.com/FAQ/13383

    To get to this answer, you can also ask this customer service "How can I connect my spindle's VFD to mach3?"

    Additional Information:
    If you still want to connect the VFD through the relay, I will clarify this instruction on this question tomorrow as I don't have the information in front of me at this moment. Thanks.

    Click the link to add information to this solution:
    I need wiring diagram from mach3 breakout board to hy inverter

  • can mach 3 be used with your usb breakout board?

    Mach3 is not compatible with the USB breakout board, so you need Planet CNC in its place.

    Additional Information:

    I am confused by this same issue. I am using the Mach3 USB interface board with Mach3 and it works fine. In fact a video of it is on this very website. (link below)

    Is the Mach3 USB interface board the same thing as Planet-CNC USB board?
    It has been stated on this FAQ that it cannot be used with Mach3 and can only be used with Planet CNC USB software.

    https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

    Click the link to add information to this solution:
    can mach 3 be used with your usb breakout board?

  • where can I find wiring instructions for the Mach3 USB controller?

    You can find all of the wiring instructions for the Mach3 USB controller here:
    https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

    Scroll down until you see the videos. The wiring instructions cover wiring all of the axes, setting up the inputs to sense limit switches, setting up the outputs and how to diagnose the outputs, setting up an external relay to control external devices, and setting up spindle speed.

    Click the link to add information to this solution:
    where can I find wiring instructions for the Mach3 USB controller?

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