The USB controller will only work with the Planet-CNC software. This software is well made and will provide great functionality. The planet-cnc software delivers instructions to the microcontroller on the board and the microcontroller will send out the pulse trains needed to move the machine correctly.

There are two main alternatives if you want to use the mach3 software:
First, get a parallel port card and add it to your computer and get a parallel breakout board. If you have a laptop/notebook computer, this will not be possible.
Second, if you have a laptop, or really want to use the USB as the main interface for controlling the machine, you will need to get the smoothstepper board which works with mach3. The price combination is much higher than the USB controller with planet-cnc, but will work with Mach3.

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The planet cnc controller can be prone to electrical interference and has been known to cause such problems. In the first instance try to use a quality double sheilded USB cable, hopefully this will fix your problem. Alternatively you may need to sheild your limit switch, estop and or motor cabling. My pick is that a quality USB cable will fix it though, worked for me.

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I have a planetcnc USB controller to run my project and when I start the 240v router the USB connection shuts down.

The USB controller will only work with the Planet-CNC software. This software is well made and will provide great functionality. The planet-cnc software delivers instructions to the microcontroller on the board and the microcontroller will send out the pulse trains needed to move the machine correctly.

There are two main alternatives if you want to use the mach3 software:
First, get a parallel port card and add it to your computer and get a parallel breakout board. If you have a laptop/notebook computer, this will not be possible.
Second, if you have a laptop, or really want to use the USB as the main interface for controlling the machine, you will need to get the smoothstepper board which works with mach3. The price combination is much higher than the USB controller with planet-cnc, but will work with Mach3.

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The planet cnc controller can be prone to electrical interference and has been known to cause such problems. In the first instance try to use a quality double sheilded USB cable, hopefully this will fix your problem. Alternatively you may need to sheild your limit switch, estop and or motor cabling. My pick is that a quality USB cable will fix it though, worked for me.

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I have your USB controller sitting here and want to control it with something other than PlanetCNC control software?

To install the USB breakout board, there will be no driver to install nor any pop-up will be viewed in your windows task-bar, except only to notify that a USB device has been connected.

If you have planet-cnc installed it should automatically ask for a license number, which if you don't have you will continue without entering any numbers. Please read carefully since there is a pop-up that can erase the entire firmware on your board, and you will basically have a dead board.

Please email customerservice@buildyourcnc.com for further assitance.

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For Windows 8.1 you need to follow special driver installation steps. Download Planet-cnc software MANUAL and scroll down to that paragraph (without it you will not be able to install and use your board).

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I trying to setup your USB Controller card. The planetcnc does not load the card, no driver for usb card. Using windows 8.1.

You can only use the planet-cnc interfaces with the PlanetCNC software. If you like the software and want to remain with that software, the hardware interfaces will need to be purchased from the planet-cnc folks.

I would recommend using the Pokeys57CNC interface which is compatible with Mach3 and Mach4. You can also consider the Mach3 USB interface if the Pokeys57CNc interface is out of your price range.

Pokeys57CNC product page:
https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach4-mach3-USB-ethernet-Board

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

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I have registered version of planetcnc software that I purchased with a Chinese controller I want to use 3 better drivers with a separate USB controller can you recommend a controller and how to link my existing software. Regards Lloyd from Australia

The Planet CNC Software will require purchase after the trial version is completed, and will be purchased through their website. Currently that is the only software available for the USB Controller.

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Must I have licence to run planetpc software, is there any other software that will run the usb controller

The Mach3 USB controller can only output pulses and direction signals (5V logic signals).

To connect your Mach3 USB controller RNR controller with a servo AC that has a 24V open collector, you will need to use a level shifter circuit to convert the 5V pulses from the controller to 24V pulses that the servo can accept.

One way to do this is to use a simple transistor-based level shifter circuit. Here are the steps to connect your Mach3 USB controller RNR controller with a servo AC using a level shifter circuit:

Connect the 5V output signals from the Mach3 USB controller RNR controller to the base of the NPN transistor in the level shifter circuit.

Connect the collector of the NPN transistor to the 24V power supply.

Connect the open collector output of the servo AC to the emitter of the NPN transistor.

Finally, connect the ground of the Mach3 USB controller RNR controller and the servo AC to the ground of the 24V power supply.

The level shifter circuit will act as a switch, allowing the 24V power to flow to the servo AC when the 5V signal from the controller is present.

Remember that the MAch3 USB controller only outputs pulses for steps per rotation of a motor. If the servo requires a different method of motor rotation, this will not work.

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[575] Hello. I have rnr controller. My problem is connection with servo ac. My servopack have logic Voltage 24v open collector. How Connect and what i need to Connect rnr with servo if rnr have 5v logic. Thx

For safety's sake I would recommend a new board because they are inexpensive compared to the electronics that they support. Alternatively, it's possible that the one dead pin is a simple fix, such as a bad connection or solder joint; if you feel comfortable making those repairs then it could be worthwhile to check. Finally, if you are not using all the input pins, you could continue to operate the limit switch on pin 11 and hope for the best.

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I have a breakout board and it appears that the pin 12 connection has failed: when i move my limit switches to pin 11 they work; they don't work on pin 12. Do i need a new breakout board?

Yes, the redLeaf plug-and-play CNC electronics can include a THC (Torch Height Controller) and motors of any size. The limit of the number of motors that this package can include is 8 motors in total.

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Will the redleaf package allow me to run a torch height controller and 2 nema 34 motors for my gantry? I would prefer to have motors on both sides of the machine with a heavy gantry

You will definitely want to adjust your debounce setting in mach3 if your emergency or limit switch is engaging.

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Did you ever fix this issue? I am having the same problem.

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Did you ever fix this issue? I am having the same problem.

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Did you ever fix this issue? I am having the same problem.

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Did you ever fix this issue? I am having the same problem.

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Did you ever fix this issue? I am having the same problem.

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Did you ever fix this issue? I am having the same problem.

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Did you ever fix this issue? I am having the same problem.

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Did you ever fix this issue? I am having the same problem.

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Did you try changing the denounce setting?

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Meant to say denounce.

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When I start my spindle I get a emergency stop in Mach 3. I have run shielded cable and it is grounded at the VFD it is wired per you site instructions. any idea what to check

The most likely issue here is that your email did not save in our system. Please email us to determine your shipping status and tracking number at customerservice@buildyourcnc.com

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I ordered the Mach 3 usb controller board on the 1st and I have not received an order conformation or shipping confirmation. My account was charged however.

To implement a electronics combo to run you Proxxon MF70, you will need to find the correct drive components (ACME screw, linear rail, etc) and look into any specific modifications needed to your rig.
I would recommend the USB 3 Axis Large Motors Electronics w/ USB Interface Board.
Since the machine is metal, our larger motors would be highly recommended.

We have not done this conversion, through research is recommended.

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Hi I have a Proxxon MF70, I want to add 3axis stepper with controller and software by USB. Can you suggest a kit for me? Thanks.

Here is the information we have for the Planet CNC USB controller:

https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-USB-Controller-Breakout-Planet-CNC

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Please advise correct wiring from PLANETCNC USB controller Mk3/4 to motor driver.

If your motors turn very slowly using your Mach3 USB board, then either the pulse from the board is being output at a slow rate or the motor drivers are set to a higher than expected microstepping:

The Mach3 USB board outputs the pulse rather than the computer, but Mach3 controls this pulse frequency within the motor tuning section. First, determine if the travel distance is correct with the computer and the physical travel of the machine.

If the travel is different, then your stepper motor driver's microstepping is incorrect, or the steps per inch/mm in the motor tuning within Mach3 is incorrect.

If the travel is correct, then simply change the velocity and acceleration parameters to your desired level. If Mach3 will not achieve the velocity you desire, then decrease your stepper motor driver's microstepping setting, readjust the step per inch/mm in mach3 and readjust the acceleration and velocity to your desired levels.

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I have not used my CNC router (Mach3, USB interface board) for several months. When I tried to use it, all 3 stepper motors moved extremely slowly. Where should I start troubleshooting?

If the Shark HD520 has separate drivers for each stepper motor, you will only need to change the controller that connects the computer to the drivers. If the Shark HD520 has the controller and driver all on one board, then you will need to get a controller and one driver for each stepper motor. You can determine if your electronics have independent drivers by opening the electronics enclosure and checking for three boxes each having wires that connect to a stepper motor (or stepper motor connector.

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[468] I have a Shark HD520 and will I have to change all of my controller cards?

A parallel to USB adapter will not work. You will need to use a USB interface like the ones below:

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

Poeys57CNC Interface:
https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach4-mach3-USB-ethernet-Board

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To answer the question in more detail, the parallel port is actually an extension straight from the CPU and is also called the GPIO (General Purpose I/O) pins. These pins carry signals independently, hence the description as being a parallel port.

The stepper motor driver receives a pulse train (series of pulses). A single pin on the parallel port sends a pulse train to one stepper motor driver and stepper motor for a single axis. Another pin on the parallel port sends a pulse train to another stepper motor driver on another axis. This happens simultaneously as with the direction signals for each axis.

If a parallel port is adapted through a USB (using an adapter), the parallel port cannot have these signals happen in a simultaneous fashion and will cause the stepper motors of a CNC router or machine to be very clunky, if it works at all. To elaborate, the computer sends an instruction to the USB to send a high signal to pin 1, so it does, then another signal to pin 2, so it does. This is happening one after another. The speed at which this happens is reduced dramatically, and the position of one axis may now be out of sync to another axis.

The reason the USB interfaces (linked above) work is that the USB delivers broad instructions to the interface (to a microcontroller) and the interface parses the instructions and outputs simultaneous signals to the stepper motor drivers.

Hope this helps.

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My computer doesn't have a parallel port connection. Can I use a usb to parallel port cable to communicate with my breakout board?

Is this CNC related. If so, what controller are you using?

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I'm using the Mach 3/USB CNC interface board, with the Mach 3 software.

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Does the LED on the controller light up, or blink?

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I believe I've corrected the issue. I found that their are 2 spring like tabs on the female USB port. And take a sharp point like on a compass and gentle raise those tabs a bit. This tighten up the connection, and I never received an error from losing connection.

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It appears I have a connection issue with the USB port on my computer with the USB cord. I purchased a new cord but has the same issue. Is there anything I can do to correct this issue?

If you are getting the "Communicating Unsuccessful!" error when you are trying to communicate between LaserCAD and the AWC608 Laser Cutter and Engraver controller (after you have already tried installing the USB driver from the LaserCAD setup procedure), these are the steps you will need for a successful communication:

- Open the Device Manager window (right click on the start menu and select Device Manager)
- When you plug the USB cable from the AWC608 Laser Cutter Controller (USB Type B connector) to the computer, you should see a new item in the Device Manager, possibly under "Ports (COM & LPT)", or under "Other Devices". It may show as an item under "Other Devices", possibly FT245R and has an "!" in a yellow triangle.
- Download the latest FTDI drivers from: http://www.ftdichip.com/Drivers/D2XX.htm
- Unzip the files to a folder that can be easily browsed.
- Right click on the item that appeared in the Device Manager when the cable was plugged in between the Laser Cutter AWC608 controller and the computer.
- Click on update driver
- Select the procedure to manually install the driver and browse to the folder containing the FTDI driver and follow the step in the driver installation wizard.
- The item should now be located under the "Ports (COM & LPT)" and should be named "USB Serial Device (COM#)". The # will be the number you will use in the LaserCAD software.
- In the LaserCAD software, click the "Select Mode" at the far top right of the Laser CAD user interface.
- Make sure USB mode is selected.
- If the Machine name with the correct COM number is listed, select it and exit the dialog window. Otherwise, click on "Add" and fill in the details with the new COM number.

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I get a "communicating unsuccessful" when using LaserCAD and the AWC608 Laser controller

If you want speed control, it is recommended to use the RS-485 connection on the VFD and use the control program such as Mach3 to communication serially with the VFD using this RS-485 connection.

If you would rather use a controller such as the PMDX-107 to simulate the effect of a potentiometer using the Aref, Aout and Agnd and the Rev/Dir and Fwd/Run terminals to control operation and direction, you can connect those to the VFD.

PMDX-107 Aout connects to the VI (analog voltage in). This is like the wiper on a potentiometer.
PMDX-107 Agnd connects to the ACM terminal on the VFD for Analog common.
PMDX-107 COM connects to DCM terminal on the VFD for Digital common.
PMDX-107 Fwd/Run connects to the FOR terminal on the VFD for Forward.
PMDX-107 Rev/Dir connects to the REV terminal on the VFD for Reverse.

Refer to your PMDX-107 manual to correctly configure your dip switch settings and make sure to calibrate (tweak) the speed control using the trimmer next to the terminals on the PMDX-107.

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I have the USB controller board and the 8825 step driver. I need a wiring diagram between the two. Specifically, what does the GND pin on the X-axis connect to? Also, what does the 5V pin on the driver connect to?

You can find a wiring diagram here:
https://buildyourcnc.com/item/electronicsAndMotors-electronic-component-USB-Controller-Breakout#prettyPhoto/2/

The CP terminal is wired to the step terminal on the 8825 step driver.
The CW terminal is wired to the direction terminal on the 8825 step driver.
The GND terminal connects to the GND on the 8825 step driver

The 5V connector on the driver simply powers the logic side of the chip and needs to connect to VCC pin on the keyboard jog.

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I have the USB controller board and the 8825 step driver. I need a wiring diagram between the two. Specifically, what does the GND pin on the X-axis connect to? Also, what does the 5V pin on the driver connect to?