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Question #: 13772

Question: What functionality is lost if 24V power supply not provided to "Mach3 USB Motion Card"?

Current Solution

If the Mach3 USB does not have a 24V power on the limit switch/output/DAC side of the board, then those functions (limit switches, outputs and the DAC) will not work. If you have a spindle, you can use the 24V output from the VFD (Variable Frequency Drive) to serve as the 24V supply.

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Other Possible Solutions to this Question

  • What would be your recommendation for "power supply 2 (24vdc)" connecting to USB motion card?

    A 24V connection to the USB motion card is only needed if you are using limit switches (inputs), powering the spindle/VFD speed and direction, and for the outputs, for powering other devices (mist, coolant, etc.).

    If you are using a VFD (Variable Frequency Drive, also called Inverter) for a spindle, they typically have a 24V out terminal that can be used with our USB motion card. If you are not using a spindle/VFD (we highly recommend one), then you will need to purchase a 24v power supply to power that side of the board.

    The outputs mentioned above are to connect to external devices and will require a relay (a mechanical switch that is controlled by a digital signal). This mechanical switch can turn on a device like coolant and mist, or even a router, if you are using one. A relay is required to turn on these devices because the devices are typically higher voltage, like mains (110v or 220v). So, a relay can turn on or off a high voltage device with a lower voltage (24v) signal.

    Click the link to respond:
    What would be your recommendation for "power supply 2 (24vdc)" connecting to USB motion card?

  • What would be your recommendation for "power supply 2 (24vdc)" connecting to USB motion card? Are there any videos explaining it's connection to the relay coil? (not quite sure what relay coil is)

    A 24V connection to the USB motion card is only needed if you are using limit switches (inputs), powering the spindle/VFD speed and direction, and for the outputs, for powering other devices (mist, coolant, etc.).

    If you are using a VFD (Variable Frequency Drive, also called Inverter) for a spindle, they typically have a 24V out terminal that can be used with our USB motion card. If you are not using a spindle/VFD (we highly recommend one), then you will need to purchase a 24v power supply to power that side of the board.

    The outputs mentioned above are to connect to external devices and will require a relay (a mechanical switch that is controlled by a digital signal). This mechanical switch can turn on a device like coolant and mist, or even a router, if you are using one. A relay is required to turn on these devices because the devices are typically higher voltage, like mains (110v or 220v). So, a relay can turn on or off a high voltage device with a lower voltage (24v) signal.

    Click the link to respond:
    What would be your recommendation for "power supply 2 (24vdc)" connecting to USB motion card? Are there any videos explaining it's connection to the relay coil? (not quite sure what relay coil is)

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

  • What wire AWG can I use to connect the power supply 24v 8.3 amps

    Most of our power supplies allow for a 9 amp current draw.

    For the Neutral, Live and earth ground, wire gauge for that level of current is 14 for relatively short cable lengths. Increase the gauge for longer lengths past 25 feet.

    For the DC 24V output terminals to the drivers, 20 gauge is fine. If the power supply is connecting to only one driver, increase the wire gauge to 14.

    Additional Information:
    What gage wire should I use from motor to driver

    Click the link to respond:
    What wire AWG can I use to connect the power supply 24v 8.3 amps

  • Provided they will fit and I install a ventilation/cooling fan, is there any reason why I should NOT mount the electronics (breakout board, stepper drivers and power supply) inside the gantry box in my BlackToe 2x4?

    First, see Jack's build: https://www.buildyourcnc.com/JackRehak.aspx

    The difference between mounting the electronics in the gantry is that the connection from the computer (signal level) is long. The alternative, where the electronics is near the computer, the motor cables are long (to reach from the drivers to the motors).

    Mounting the breakout board, drivers and power supply within the gantry will cause you to have a long signal connection from the computer to the breakout board. That is fine as long as the cable is long enough, possibly shielded, and can carry the signal at long cable lengths. Make sure to have the cable well away from the motor cables as these will cause quite a bit of interference.

    Click the link to respond:
    Provided they will fit and I install a ventilation/cooling fan, is there any reason why I should NOT mount the electronics (breakout board, stepper drivers and power supply) inside the gantry box in my BlackToe 2x4?

  • Breakout Board with Relay. What is the USB connection on this board for? Does this board Still require a 5v power supply?

    We generally use the USB to power the interface (breakout board). The current from the computer is sufficient to supply the breakout board.

    Click the link to respond:
    Breakout Board with Relay. What is the USB connection on this board for? Does this board Still require a 5v power supply?

  • In the 3 Axis Electronics Combo, what is the AC input of the power supply (110v or 220v??). is it possible to specify a certain voltage when ordering?

    In our 3-Axis electronics kit, the power supply's provided are capable of both 110V-220V. You have the capability to switch between both in case you might decide to run 220v in the near future or will relocate where 110v is being used.

    Additional Information:
    Connect spindle to the board

    Click the link to respond:
    In the 3 Axis Electronics Combo, what is the AC input of the power supply (110v or 220v??). is it possible to specify a certain voltage when ordering?

  • 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 respond:
    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?

  • What else to I need to purchase along with the "3 Axis Electronics Combo w/ USB Interface Board" to get the electronics up and running? (software, 5V power supply, 4-conductor wire, etc.)

    Here is a list of the parts needed to get the electronics combo functioning (parallel or USB interface options):

    - 22 or 24 gauge stranded hookup wire to connect all of the drivers to the USB or parallel interface (terminal to terminal connections),
    - 18 gauge stranded hookup wire to connect the drivers to the power supply,
    - a power cable (extension cord) to connect from the power outlet to the power supply,
    - 4 conductor cable to connect the drivers to the stepper motors,
    - a USB cable to connect from the computer to the USB interface (or for power to the parallel interface),
    - for the parallel interface, a parallel cable is needed (male to male db-25),
    - a computer (for parallel interface, the computer will need a parallel port and if the computer does not contain a parallel interface, the motherboard may have a header for it, or you can purchase a parallel adapter to plug into the motherboard, very inexpensive),
    - cnc control software: for the USB interface, you will need planet-cnc software, for the parallel interface, you can use any industry standard cnc control software (the typical is Mach3 for Windows, or EMC2 or Linuxcnc for Linux (Linuxcnc.org).

    5v power supply is not needed. The 5 volts signal level power is derived from the computer through USB on both types of interfaces.

    Click the link to respond:
    What else to I need to purchase along with the "3 Axis Electronics Combo w/ USB Interface Board" to get the electronics up and running? (software, 5V power supply, 4-conductor wire, etc.)

  • When Blacktooth is powered on the motors get power but will not turn. What should I do?

    The motors could be wired incorrectly causing them to lock up. Make sure to check the wiring to make sure the X and Y are connected to the correct terminals.

    Click the link to respond:
    When Blacktooth is powered on the motors get power but will not turn. What should I do?

  • What are the dimensions of the 24v 8.3A power supply?

    The dimensions for our power supplies will be the same.

    Dimensions:
    L: 8.5" / 215.9mm
    W: 4.5" / 114.3mm
    H: 2" / 50.8mm

    Click the link to respond:
    What are the dimensions of the 24v 8.3A power supply?

  • can't get breakout board with relay working. in your video you show a 5v power supply input on the usb one but can't not find on this one?

    What part of your breakout board is not working? Are you having trouble getting a signal from the computer out of the breakout board to the drivers?

    The breakout board uses the USB as the 5v power source.

    Additional Information:
    Wiring the limit switches


    Additional Information:
    I am using my breakout board as port 2 from my ess smooth stepper only for limits so it's powered via 12v , now I want to use pin 17 to trigger my plasma will I still need to supply 5v power to is a well? As I'm not using the usb it's connected to smooth stepper via 25pin ribbin

    Click the link to respond:
    can't get breakout board with relay working. in your video you show a 5v power supply input on the usb one but can't not find on this one?

  • I was looking for a MYJG80W power supply but I see you may not have the 220 volt version. Do you have these as yet and if not what can you advise on availability or where I may find one...Thanks

    Thanks for your interest in the 80 Watt Laser Tube Power Supply. We will start offering the 220 Volt version of these power supplies on September 23rd.

    Additional Information:

    Click the link to respond:
    I was looking for a MYJG80W power supply but I see you may not have the 220 volt version. Do you have these as yet and if not what can you advise on availability or where I may find one...Thanks

  • Which power supply, 36V/8.8A or 24V/8.3, to drive one Nema 43 stepping motor?

    You can find the wiring diagram, and technical specifications for the NEMA 23 motor, on it's product page, found here,

    https://www.buildyourcnc.com/Item/electronicsAndMotors-nema23-100ozin-newbiehack-motors-stepping_motors-100_ozin

    There is a datasheet below the product description. This image will expand to be easier visible once clicked on.

    Click the link to respond:
    Which power supply, 36V/8.8A or 24V/8.3, to drive one Nema 43 stepping motor?

  • Which power supply, 36V/8.8A or 24V/8.3, to drive one Nema 43 stepping motor?

    The NEMA 43 motor we stock has a 5.5A draw, which we recommend to pair with our 6.0 amp driver and 36V 8.8A Power Supply.

    Click the link to respond:
    Which power supply, 36V/8.8A or 24V/8.3, to drive one Nema 43 stepping motor?

  • HOW TO KNOW IF THE POWER SUPPLY OF THE LASER TUBE IS DAMAGED

    This video will illustrate how to test for laser power:

    Click the link to respond:
    HOW TO KNOW IF THE POWER SUPPLY OF THE LASER TUBE IS DAMAGED

  • What warranty is there on the 40W laser and power supply?

    Most of our products have a warranty that extends for 1 year; however, there are parts like end mills and laser tubes which are considered consumables. These parts, when used, become worn, or the usable life is decreased. Laser tubes are parts that, when used, shorten its life, and especially when proper methods are not used (i.e. running the tube with water), can drastically reduce the life of the tube. Therefore, the warranty for laser tubes are 30 days if the laser tube was not used.

    Click the link to respond:
    What warranty is there on the 40W laser and power supply?

  • How to wire the Laser Power Supply with an arduino & GRBL ? (I'm not using a blacktooth laser cutter)

    There is a th or tl on the laser power supply that serves as the trigger on a high or low signal. There is also a potentiometer "in" terminal that will accept a variable signal from 0v to 5v to control intensity. You can use either of these features to fire the laser tube.

    If you have gotten grbl to work, then, no doubtedly, you have the expertise to know the output features of grbl. If grbl allows a pwm output, you can tie this to the potentiometer terminal on the power supply. Otherwise, you will need to use a digital output to control the power supply using th or tl.

    Additional Information:

    Click the link to respond:
    How to wire the Laser Power Supply with an arduino & GRBL ? (I'm not using a blacktooth laser cutter)

  • I have a blue brew break-out board. Do I use a seprate power supply for it and what amp output should it have if used.

    We generally use the USB to power the interface (breakout board). The current from the computer is sufficient to supply the breakout board.

    Click the link to respond:
    I have a blue brew break-out board. Do I use a seprate power supply for it and what amp output should it have if used.