Depending on the probe that you have, you should have two wires coming from the probe. One of those two wires will need to be connect to an input pin as shown in this wiring diagram (the diagram show the probe connected to pin I4):
https://www.buildyourcnc.com/Documents/Electric%20Wiring%20Diagram.pdf

The other pin is connected to V-. Please make sure that you have 24V connected to the V- and V+ on that side of the Mach3 USB board.

The way the probe works is when the probe is in contact with an object, a specific spring mechanism will cause the input pin to be connected to the V- (close the circuit). When Mach3 senses an active low on the input pin, mach3 knows that the probe has made contact (closed the circuit).

If your probe is used as a Z-Axis zero plate, then the concept is the same, but the end mill is connected to V- and the plate is connected to the input pin. If the plate comes in contact to the end mill, then the circuit is closed and mach3 will sense an active low on the input pin.

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Mach3 USB interface board. Could you please give me the correct wiring configuration for tool prob?

BYCNC Response:
This is correct. You will need to use a method appropriate for the software you are using. Also remember that NC switches are typically wired in series, while NO switches are normally wired in parallel.

User Response:
I am using the cnc planet software for your USB board. Are the limit configurations in this software?

BYCNC Response:
Yes, Planet CNC software is compatible with the use of limit switches. Configuration information will depend on your specific application. You can view Planet CNC's information here: http://www.planet-cnc.com/files/CNCUSBController.pdf

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LIMIT SWITCHES FOR AXIS. THE PRINT SHOWS THAT YOU CAN WIRE LIMITS EITHER N.O. OR N.C. SO IF THIS IS CORRECT I WOULD NEED TO TELL BOARD IN SOFTWARE HOW LOOK AT THESE LIMITS, I'M GOING GET AN INPUT LOOSE DEPEND ON IT.

We are working on a keypad that will connect to the USB interface. It is possible to create a quick keypad using perf-board and some push buttons. All you need to do is connect one side of the switch to the pin of the axis and direction and the other side of the push button to the 5v pin. The datasheet shows the pinout of the jog connector.

Additional Information:
I had found the pins to wire in a job connector. My question is, what sort of connector do I look for (on Amazon for example) that will work for each 2 pin pair? I suspect they are the same as the connector for power and reset on my computer's motherboard, but I have no idea what to look for (what to buy).
thanks.

Additional Information:
20

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I need to find a connector(s) to wire a pushbutton array to the USB board I purchased. Do you sell such a connector. Can you tell me what to look for?/What such a connector is called?

We do have a relay board that words like a standard relay.

Here is the URL of the relay board that we offer:

https://www.buildyourcnc.com/item/electronicsAndMotors-breakout-Relays-relay-board-250V-12A-5V

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I HAVE YOUR MACH3 USB BOB, DO YOU GUYS SELL A TORCH CONTROL RELAY CAN WIRE UP TO TURN MY PLASMA ON AND OFF HOW WOULD WIFE THAT TOO THIS BOB?

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.

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

We do have a relay board that words like a standard relay.

Here is the URL of the relay board that we offer:

https://www.buildyourcnc.com/item/electronicsAndMotors-breakout-Relays-relay-board-250V-12A-5V

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I have your mach3 USB BoB, do you guys sell a torch control relay I can wire up to turn my plasma torch on and off and how I would wife that too this BoB?

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

You will probably need to use the Mach3 USB board with Mach3. We have not tested the Mach3 usb card with Mach4.

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Whereb can I find directions on how to install the Mach3 USB board with Mach 4 software? I do not have a parallell port.

The motor that is attached to the 4th axis is wired as follows:

The motor should have red, green yellow and blue wires coming form the motor. The red and green are paired as one coil and the yellow and blue is paired as the other coil. You can wire the motor to a 3.0 amp driver with red to A+, green to A-, Yellow to B+ and Blue to B-

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HOW DO I WIRE THE 4TH AXIS THAT YOU SELL. I HAVE MACH3 SOFTWARE. NO INSTRUCTIONS ON YOUR SITE

Sure, connect O2 (output #2) on your mach3 USB board to the GND side of your relay coil. Connect the 24V power supply to the positive side of your 24v relay.

You will want to connect a flyback diode (1N4007) between the coil connections to make sure the coil back current does not damage the Mach3 USB board.

Refer to this diagram:
https://www.buildyourcnc.com/Documents/Electric%20Wiring%20Diagram.pdf

Please let me know if this helps and if you need further guidance.

Thanks

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I recently purchesed a USB Mach3 breakout board and need help setting mach3 to use a relay to start the router can you show how to set the pins and which port to use on the board to attached the relay?

You will need a 24V relay to control mist using the Mach3 USB breakout board. The wiring diagram (link below) will show one of the output terminals (O1, O2, O3 or O4) connected to one of the leads of the relay. The other lead is connected to the V+ to complete the circuit. The other part of the relay is used as a switch to control the mist on/off.

Wiring diagram: https://www.buildyourcnc.com/Documents/Electric%20Wiring%20Diagram.pdf

Mach3 USB Breakout Board for CNC Routers: https://buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

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How can I to connect a signal to turn on a mist in a USB board? Thank you

To use the inputs and outputs on the MAch3 USB controller, you will need at least a 12 VDC power supply inte 24V terminal (V+) and the DCM terminal (V-). The common lead of the limit switch will be connected to DCM (V-) and the NO (Normally Open ) lead of the limit switch will be connected to the Input of your choice (IN1 - IN4).

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[65] So do you need a 24 volt power supply on the USB breakout board or can you use the 5 volt side ?

Are you able to install a newer version of Mach3? If you are worried that your configuration will be lost, you can save the configuration by copying all of the XML files from the Mach folder. The XML files contain all of the settings that you applied in Mach3. Just in case the XML files are not compatible with the new version, make sure not to erase the current Mach3 that you have on the machine.

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[575] Hi, I have an old version of MACH3 V1.84 - Can someone tell me where to place the USB motion drive as there is no plugin folder in this version.

You can determine if the area is serviceable by:
- selecting the items you want to purchase on the website
- go to the cart (shopping cart top left of any webpage)
- log in, or register
- Enter the address and click on calculate shipping.

The webpage will return the direct rates and whether your area is serviced or not. Feel free to enter any address as long as you are able to receive the package from that address.

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WAS WONDERING IF YOU COULD TELL ME WHETHER OR NOT SHIP ANY OF YOUR KIT PRODUCTS TO THE UK?

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.

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I want to use Planet-CNC software can I use Mach3 USB 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

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

The port used with the Mach3 USB controller is Port 3. The pin associated with the input you are using matches the input terminal you are using. For instance, if you are using IN2, the pin number is 2.

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What is the correct pin and port setting for auto tool zero on the Mach3 USB interface board. the auto tool macro works but does not stop lowering the bit when it touches the touch plate. It does not blink the digitizer button in the diagnostic menu when the circuit is completed.

The USB interface that we sell only works with planet-cnc software. We will be developing our own USB board and plug-in that will work with Mach4 very soon.

Additional Information:
does the mach3 usb interface board work with mach4?

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Can I use your USB interface board and Mach4 on my 3 axis CNC router?

Yes, you can use a laptop if you have a controller that uses a USB, like the Mach3 USB card. If you don't have that, you can purchase that part here:
https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

If you have a controller board that connects to a 25 pin connector, modern laptops will not be able to connect to that port.

How old is your CNC computer system?

Additional Information:
The CNC computer system is 2013 (5 years). The built in video card went out. I will order the Mach3 USB card. Thank you.

Additional Information:
You're welcome

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The motherboard on the computer I bought from you went out. What would you suggest. I have a laptop, could I use it and use a Mach3 USB interface board?

Yes, you can. You can slave the axis with two motors by using the "A" (AD and AP) terminals for the slaved motor on the axis with two motors. In Mach3, click the config menu and select "slave axis". Select the axis that contains the slave axis and select the A Axis radio button under that axis.

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Can I have a slave axis on Mach3 USB Board?