We have ran across this issue on occasion, and usually results is there is something along your wiring that is causing a fault or is not getting good contact.
We would recommend going through the wiring thoroughly and checking continuity with the y-axis wires, going from your USB or Parallel BoB to the driver.

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My CNC machine has suddenly started going in only one direction in the Y axis. It was working fine for several days and then started going in a single direction when I would do a manual job.

If the Z-Axis is moving down when you press the page up or page down (or by moving the z-axis by another means like with an MPG, Pendant, or the built-in MPG in Mach3), then the direction signal wire is not connected correctly. The direction signal wire works by moving in one direction with a low signal (like gnd) and moving in the other direction with a high signal (like 5v). If the signal stays at one of the two signals, it will only move in the direction of the current signal state. Recommended action is to determine if the DIR- and DIR+ signal wires are connected securely and make good contact at the driver and controller sides.

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I installed a pokeys57cnc and use Mach3 for the mill. When I page up or down the Z axis moves down. Is there a setting I need to change? I checked the Z axis wiring and it matches the X and Y axis which function correctly.

If the Z-Axis is moving down when you press the page up or page down (or by moving the z-axis by another means like with an MPG, Pendant, or the built-in MPG in Mach3), then the direction signal wire is not connected correctly. The direction signal wire works by moving in one direction with a low signal (like gnd) and moving in the other direction with a high signal (like 5v). If the signal stays at one of the two signals, it will only move in the direction of the current signal state. Recommended action is to determine if the DIR- and DIR+ signal wires are connected securely and make good contact at the driver and controller sides.

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I installed a pokeys57cnc and use Mach3 for the mill. When I page up or down the Z axis moves down. Is there a setting I need to change? I checked the Z axis wiring and it matches the X and Y axis which function correctly.

To make an axis move in the opposite direction to what it is currently moving, you will need to toggle the ":direction:" active low setting for that axis. for instance, if when you press the page up button and your z-axis move down instead of up, then you need to make this change in the configuration.

To do this in Mach3:
- Click on the config option in the top menu
- Click on ports & pins
- Click on the motor outputs tab
- on the axis you wish to reverse, click on the "dir active low" to toggle the state of that parameter.

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I installed a pokeys57cnc and use Mach3 for the mill. When I page up or down the Z axis moves down. Is there a setting I need to change? I checked the Z axis wiring and it matches the X and Y axis which function correctly.

Red is A+
Blue is A-
Black is B+
and Green is B-

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I purchased the 3 Axis Heavy Gantry Electronics /w Pokeys57CNC controller and the motors supplied only have 4 wires coming out of them (R,G,B,Blk). Your wiring video shows wiring 8 cables. do you have a video showing how to wire the 4 wire version?

The fact that you cannot move the motors with the keyboard serves as a clue to a couple possibilities.

- The software may not be communicating with parallel port. (One possibility may be that your step pins are not low active, or vice versa depending on your drivers).
- You may not be in the correct tab of Mach3. Make sure you are in the Program Run tab.
- The jog on/off button on the program run screen may not be lit (invoked).

This address below shows the complete troubleshooting for this type of situation. It will show how to test each pin at the parallel port at the back of the computer and everything else associated with correctly wiring the electronics.

https://buildyourcnc.com/CNCElectronicsandWiring.aspx




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6 axis robot with Mach3 Card 6 Axis Motion Controller

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I bought Mach 4 and Mach 3 USB Motion card STB4100. The installation Manual you direct me to is for installing board with Mach3. Where can I find directions for the combination of products I bought? The axis motors are held stationary by the magnets but when I try to jog an axis from mach 4 program, no movement.

I am not using a parallell port. I am using a USB.

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I bought Mach 4 and Mach 3 USB Motion card STB4100. The installation Manual you direct me to is for installing board with Mach3. Where can I find directions for the combination of products I bought? The axis motors are held stationary by the magnets but when I try to jog an axis from mach 4 program, no movement.

I have very detailed wiring videos for the Pokeys57CNC controller on the pokeys57CNC controller webpage: https://buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach4-mach3-USB-ethernet-Board

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[50] I purchased 3 Axis Heavy Gantry Electronics /w Pokeys57CNC controller (Mach3 and 4 Compatible) and Cable Pack I plan to use Mach 3 do You have a wiring diagram Thanks

Is this regarding the Mach3 USB controller?

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I'm having a problem with my controller card: I can measure 24 volts going to the card, but when I set Mach3 outputs I reagister no voltage. Please help

For the USB controller and reversing the rotation for a motor, you would need to do this in the software (planet-cnc). In the configuration, you will need to reverse the direction by inverting the direction output.

Technically, the motor changes direction when the direction signal changes from a high to a low, or vice verse. For instance, the motor turns in one direction when the direction signal is, say, low. The motor will turn in the other direction when the direction signal is high. High is 5v and low is 0v or gnd.

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I have wired the step motors with the USB breakout board. When I jog the y axis it travels in the wrong direction. How do i switch the motors rotation?

Drivers will have terminals with labels that represent a pulse, clock or step, and for direction. Look at the following to determine which terminal is used for what purpose.

Step- = CP- = P-
Step+ = CP+ = P+
Dir - = CW- = D-
Dir+ = CW+ = D+

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Hi, I have one of your mach3 controller boards and have followed the tutorial videos but my motor drivers do not have p+ p- d+ d- I only have sted, dir, en and +5v

Yes, you can use a conductive metal to serve as a zeroing block for the Z axis. All you need to do is connect the block (conductive metal) to one of the 4 inputs on the controller. The end mill must be connected to the DCM terminal (the GND of the 24V power supply) of the controller. In the inputs dialog box (config-ports and pins-inputs). Under the probe line, enter port 3 and the pin used for the block.

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[575] Hi can I use a zeroing block with mock three interface board and do you have one I can purchase and directions on how to set up

Yes, you can use a corner plate very easily. You will want to make a corner plate that has three independent plates that do not conduct with each other. Each of these plates will be connected to a different input (i.e. IN1 for X, IN2 for Y and IN3 for Z). The end mill or tool that is inserted into the spindle will connect to V- of the 24V power supply, or the DCM on the controller, which is connected to the 24V V-. Then, you can use the ref all home button on the program run screen of Mach3.

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Is there a way to use an X,Y plate that will only be responsible for corner finding in Mach3 with the Mach3 USB controller?

Try slowing your feedrate down and increasing spindle RPMs. End-mills will leave a poor finish if you go too fast. Make sure your cutting depth isn't too much. Maybe the endmill or cutter is blunt? Could it be the feed direction of the cutter? Some materials need to be fed in a certain direction.

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MOTOR GOING TWO DIRECTION WHEN JUST PUSH UP. IT WILL GO DOWN AND THEN GOES AGAIN UP WITH THE SAME BUTTON.

Did you install the Mach3 USB plug-in?

Make sure that you followed all of the steps and diagrams on the following page:
https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

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ABSOLUTELY NOTHING WORKS. I HAVE ALL STRUCTURE AND MECHICAL PARTS OF THE BLACKTOOTH CUTTER DONE. HOWEVER WHEN WIRE UP STEPPER MOTOR TO DRIVER. THAT MACH 3 USB CONTROLLER BOARD, TRY JOG MOTOR, WORKS! PREVIOSULY HAD PLANET CNC BREAKOUT HOWRVER, ONLY MOVED MOTORS IN ONE DIRECTION COULDNT CHANGE IT. ANY HELP WOULD BE APRECIATED

We could not guarantee, nor say, whether or not your current software would be able to utilize the USB breakout board. Our USB breakout board is designed for use with Planet CNC software found here, http://www.planet-cnc.com/index.php?page=software

As far as we know, this is the only CNC Controller software that operates on a USB breakout controller.

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I want to change my old DSP controller and break out board with new one in your site that support usb it is possible ? if yes can we contact us to talking about details ?

If some axes are not moving in two directions, the direction signal is not making good contact at either the controller or the driver.

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I have USB Interface board. All axes are working if using MDI , using program some of the axes are only moving one direction. Example using Gcode X50 Y50 Z50 and then X45 Y45 Z45 then online one of the axes is turning correctly. But also shows on Mach3 screen that all axes are moving correctly.

Yes, you can connect a THC, Torch Height Controller, with the Mach3 USB controller. The THC uses the inputs to determine if the z axis needs to move up or down according to the arc of the plasma torch. The THC connects its outputs to the inputs of the controller so the controller will be informed of the states of the plasma torch.

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I am interested in using the Mach3 USB interface board. I was wondering if there was a way to run a torch height controller with this board for use with a plasma cutter, and if so do you know of any THCs that will work. Thank you.

The Mach3 USB interface board requires 24V relays externally. There are no relays on the mach3 usb board. If you use an external relay on the mach3 usb board, the relay connects to the V+ which is 24V and the output pin is the return.

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I understand what you are saying. Does your relay board work with the Mach3 USB board? If not, what relay board do you suggest to work with this usb controller?

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Our relay board works with our parallel breakout board. An off the shelf SSR (Solid State Relay) made for 24V should work fine.

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I bought a 'BuildyourCNC V1' relay board to go with my mach3 usb controller. I have been sent a 'Songle' relay. It's not the one in your picture and it's got different connections, for which there isn't a wiring diagram. The one I ordered says it is 5v, this one seems to be saying it's a 24v unit. Can you please explain what has happened? Thanks