[ Log In ]
[ Register ]
NEW: CNC Router PLANS Available for all of our Newest CNC Models!! Click here to "Design Your CNC".

Question #: 3464

Question: What are the EN connections used for on the QJ8060 motor driver? I notice that your video seems to leave them unconnected.

Current Solution

The EN terminal on the QJ8060 driver and all of our other stepping motor drivers is the enable terminal. We don't use this terminal and the driver will function properly if left unconnected.

Respond:

Other Possible Solutions to this Question

  • Is there a video link showing connections to your most recent frequency converter for the 2.2 spindle (type:YL600-2S-2K20)? Cheers.

    I am currently making a video right now. I will post the video in a few days.

    Additional Information:
    You guys rock!

    Additional Information:
    Don’t judge us until you see the video!! Haha.

    Additional Information:
    Here is the video that I promised. The video covers the main wiring of the VFD and spindle.



    I will do another video on the parameters.

    Click the link to respond:
    Is there a video link showing connections to your most recent frequency converter for the 2.2 spindle (type:YL600-2S-2K20)? Cheers.

  • I'm going to use 2 stepper motors for my X-axis. Can I use the same connections on the B/O board to do this knowing I will need 2 separate driver boards.

    Yes, absolutely. If you need two motors for a single axis, you will want to use the same terminals for pulse and direction from the breakout board.

    More specifically, you will wire the step/pulse pin to both drivers, and the direction pin to both drivers. If the motors need to turn in different directions, simply swap the A and B coil connections on one of the motors.

    Click the link to respond:
    I'm going to use 2 stepper motors for my X-axis. Can I use the same connections on the B/O board to do this knowing I will need 2 separate driver boards.

  • I'm assembling the gantry for a 5x10 greenbull and noticed that there are 9 spaces for torsion spacers but only 7 in the kit. Should I just space them out on the right side behind the motor?

    That is correct. We send the fewer ribs than could be fastened within the gantry. One reduction of a rib will provide more space for the motor at the midpoint of the gantry and at the other side of the gantry (opposite the motor) can be reduced to provide more space to work with the coupling.

    Click the link to respond:
    I'm assembling the gantry for a 5x10 greenbull and noticed that there are 9 spaces for torsion spacers but only 7 in the kit. Should I just space them out on the right side behind the motor?

  • I have an engine NEMA 34 from Y axis on my green bull that do not response, I already check connections and everything seems to be OK, how can I check that the motor it's working properly or not?

    If one or more motor is not responding, please follow the troubleshooting directions below:

    For parallel Bob only! Make sure both the parallel and USB are connected.

    Re-check wiring, and connections for continuity (no breaks in the wires) and check for correct wiring locations from driver to BoB.
    Check dip switch settings on the driver.
    Check components, by swapping the motors (ex. y-axis motor to z or x-axis driver and z or x-axis motor to y-axis driver) to check if motor functions on another driver.
    Depending on software check step low active (mach 3) or invert pulse (planet-cnc) for the axis which is not responding.
    Mach 3 - config/port & pins/motor outputs / Planet-CNC - file/settings/axes

    Click the link to respond:
    I have an engine NEMA 34 from Y axis on my green bull that do not response, I already check connections and everything seems to be OK, how can I check that the motor it's working properly or not?

  • What are the toggle switch settings on the stepper motor drivers for the .5 in. lead screw 10 tpi 2 turns per inch? Thankyou!

    On the top of the stepper motor drivers is a grid with the appropriate toggle switch positions for the lead screw being used. If it is 2 turns per inch, the proper toggle switch positions would be 01101110. Try this and see if it works.

    Click the link to respond:
    What are the toggle switch settings on the stepper motor drivers for the .5 in. lead screw 10 tpi 2 turns per inch? Thankyou!

  • I am looking at 2 of your motor drivers. 1 is the 1/64 step and the other is 1/256. What is the difference between the two?

    Stepper motors are designed to move in specific increments; these increments are called "steps". For example, a common standard is for 200 steps per full revolution. Microstepping is a method to send signals to the motor to move only a fraction of a full step at a time. For example, if a motor has 200 steps per revolution and is microstepped 1/16, then effectively there are 3200 small step movements (microsteps) per revolution instead of 200 larger ones. This makes the motion of the motor much smoother and more precisely controllable, at the cost of decreased holding torque.

    Here are is a good references for stepper motor theory: http://users.ece.utexas.edu/~valvano/Datasheets/StepperMicrostep.pdf

    And Wikipedia has a good overview as well:
    https://en.wikipedia.org/wiki/Stepper_motor

    Click the link to respond:
    I am looking at 2 of your motor drivers. 1 is the 1/64 step and the other is 1/256. What is the difference between the two?

  • I'm building my own machine using your motors and drivers. What is the best dip switch settings for the 3.0 amp drivers powering the 425 oz motors

    The settings that you will use for your 3.0 amp driver to properly power and turn your 425 oz-in stepper motor will cheifly depend on your application and the mechanical parts you are using on your machine. In all circumstances, the amp setting for the stepper motor (according to the datasheet) should be 2.8 amps. Use the closest setting on the driver without going over.

    Here is a good rule of thumb for the microstepping which will correspond to the resolution, but wil also affect torque. You always want to try to achieve the best torque and resolution for the axis you are moving but go with the lowest microstepping possible. In cases where there is mechanical advantage, like a lead screw scenario, where for each motor revolution, the axis move a very small amount, you will want a very low microstep value. This is because the mechanical configuration will provide most of the finer resolution and you will not need the microstepping to assist in this. Increase the microstepping only in conditions where the axis is not moving smooth enough, or where there is a mechanical disadvantage. A mechanical disadvantage would be where the stepper motor is causing a great amount of movement in the axis and the resolutions suffers from this condition. Increase the microstep value up to your desired resolution, but don't go over since the torque of the motor will decrease.

    Click the link to respond:
    I'm building my own machine using your motors and drivers. What is the best dip switch settings for the 3.0 amp drivers powering the 425 oz motors

  • I cannot find a driver for the NEMA 14 Stepping Motor (17 oz-in 1/4" dual shaft) on your site, would something like the Pololu DRV8834 be okay? (I note that the stepper requires 2.7v)
  • I have a KL-4030 stepper motor driver that I only have about an hour use on it but seems to be bad already. Has anyone out there had the same problem?

    The KL-4030 is a Keling 3.0 amp stepper motor driver. These are generally pretty robust drivers. You mentioned in the question that it worked for one hour. This sounds like it could be a contact issue with the wiring in the terminals. I would recommend that you check all of the connections. The terminals that are used in these drivers have terminals that are easily used incorrectly.

    Make sure to open the terminal all the way using a small screw driver. Then insert the exposed wire into the opening and re-tighten the terminal. Make sure of a good connection by tugging on the wires.

    Also, check kthe digital wires that connect from the driver to the control board.

    Click the link to respond:
    I have a KL-4030 stepper motor driver that I only have about an hour use on it but seems to be bad already. Has anyone out there had the same problem?

  • Can two different stepping motors share the same ground wire, and then add a jumper from one driver to the other? For that matter, can the ground for the limit switches share the ground for the motors?

    Yes they can be shared, and adding jumper from one to the other will work but not recommended. Yes you can also share the ground for limit switches and motors.

    Click the link to respond:
    Can two different stepping motors share the same ground wire, and then add a jumper from one driver to the other? For that matter, can the ground for the limit switches share the ground for the motors?

  • I JUST RECEIVED MY WHITE ANT AND STARTED TO DO SOME BASIC ASSEMBLY. NOTICE THAT THE 1/4 X 20 BOLTS WITH PHILLIPS HEAD NOT FIT IN NOTCHES CUT FOR THEM - INSTANCE, ON DREMEL MOUNT. AM SUPPOSED BUY DIFFERENT HEADS, GRIND ALL DOWN, OR ROUTE OUT BIGGER NOTCHES. 3" BARELY Z-AXIS MOTOR

    BYCNC Response:
    Please send a photo of the bolts and assembly so we can determine the problem. Thanks.

    User Response:
    The holes on the Dremel holder are 0.442" and the bolt heads are 0.483". Picture will be sent. In the picture note that the left bolt has been ground down.

    BYCNC Response:
    You were sent incorrect fasteners due to a vendor change. We will be shipping the correct parts to you immediately, and thank you for letting us know about this mistake.

    Click the link to respond:
    I JUST RECEIVED MY WHITE ANT AND STARTED TO DO SOME BASIC ASSEMBLY. NOTICE THAT THE 1/4 X 20 BOLTS WITH PHILLIPS HEAD NOT FIT IN NOTCHES CUT FOR THEM - INSTANCE, ON DREMEL MOUNT. AM SUPPOSED BUY DIFFERENT HEADS, GRIND ALL DOWN, OR ROUTE OUT BIGGER NOTCHES. 3" BARELY Z-AXIS MOTOR

  • The Datasheet link for the stepper driver seems to need Microsoft Office to open. Is there another way to open that data sheet link?

    Fixed. The 3.0 amp driver datasheet has been converted to a pdf.

    Click the link to respond:
    The Datasheet link for the stepper driver seems to need Microsoft Office to open. Is there another way to open that data sheet link?

  • Can you guys make a video showing how to adjust the white pin combinations on the redleaf drivers, in relation to the various combinations needed for the different size stepper motors?

    The dip switch settings on the drivers have a table on the top of the driver itself. To determine the size of the motor and driver compatibility, you first need to associate the motor to the correct driver (i.e. if the motor requires 6 amps to deliver the rated torque, you will need a driver that can allow for a 6 amp draw). Second, if the motor is rated within the amp specs of the driver, then you need to look at the motor datasheet (located on the product page of each motor) and look at the amp rating related to the wiring scheme you selected (most likely bipolar parallel). Se the dip switches to select an amp that matches this rating found in the datasheet. Remember that the dip switch is ON if UP and OFF if DOWN. On = 1 and off = 0.

    If you think a video would be more helpful, please call us and we can discuss this.

    Click the link to respond:
    Can you guys make a video showing how to adjust the white pin combinations on the redleaf drivers, in relation to the various combinations needed for the different size stepper motors?

  • My Nema 24 motors make high pitched alarm sound when changing directions quickly - what could be the cause? Red LED is lit on Microstep Driver CW230 but everything seems to run fine - is this a problem?

    Stepper motors are known to make different type of noises when in motion. So there should be no issues in regards to accuracy with the steppers. You also might be able to lower the noise that comes from the motors, by adjusting the acceleration and velocity of the motors. This usually tends to either make different noises or lowers the pitch of the noises.

    Cool video(personal opinion, does not relate to BYCNC):

    Click the link to respond:
    My Nema 24 motors make high pitched alarm sound when changing directions quickly - what could be the cause? Red LED is lit on Microstep Driver CW230 but everything seems to run fine - is this a problem?

  • For a stepper motor that requires 5.5 amps, would you recommend setting the stepper driver to 5.43 or 6 amps? Better to go lower or higher?

    If your motor spec call for 5.5 amps, it is best to set the driver for the setting that matches that spec, or the next lowest value. This will allow the motor to run within its designed characteristics.

    Click the link to respond:
    For a stepper motor that requires 5.5 amps, would you recommend setting the stepper driver to 5.43 or 6 amps? Better to go lower or higher?

  • Motor tuning. While motor tuning what are the recommended steps per inch, velocity, and acceleration for the BlackFoot CNC?

    These are the recommend values(default) for our blackFoot CNC machine, the acceleration and velocity can be adjusted as high as the motor can rotate without stalling! Suggested increment's will be by 10's.

    blackFoot:
    X-axis
    “CW8060 (6.0A) Driver”
    Set to 1/16 Microstep, 5.43A
    Dipswitches: 01100110 (“0”=down, “1”=up)
    Mach3 Motor Tuning: 914.29 steps/in, Velocity 400.02, Acceleration 4
    Y-axis
    “CW230 (3.0A) Driver”
    Set to 1/16 Microstep, 2.7A
    Dipswitches: 11001100
    Mach3 Motor Tuning: 1422.22 steps/in, Velocity 400.02, Acceleration 4
    Z-axis
    “CW230 (3.0A) Driver”
    Set to 1/4 Microstep, 2.7A
    Dipswitches: 10101100
    Mach3 Motor Tuning: 1600 steps/in, Velocity 79.98, Acceleration 5

    Additional Information:
    how can we tuning the CNC motor

    Click the link to respond:
    Motor tuning. While motor tuning what are the recommended steps per inch, velocity, and acceleration for the BlackFoot CNC?

  • While motor tuning what are the recommended steps per inch, velocity, and acceleration for the GreenBull CNC?

    In the customer service live, just enter "motor tuning" and it will give you a list of all the recommended or default settings for our machines. However the acceleration and velocity for the greenBull(other machines) will be an actual determination on your trials. You will want the highest possible acceleration and velocity without the motors stalling, so you can do increments of ten to be on the safe side, if it is too slow try increments of 25.

    The steps per inch is dependent on the microstepping:
    Steps/Inch for the x and y
    Steps = 200 motor steps per revolution x 16 microsteps = 3200 steps
    Inches = sprocket number of teeth x pitch of the sprocket = 14 x .25" = 3.5 inches
    steps/inch = 3200 / 3.5 = 914.28
    This is really a starting point. You will then need to use the mach3 calibration function to get the perfect steps/inch value. Use as long a measurement as possible when calibrating.

    Velocity:
    Start with a value of 1000 ipm. Increase this value with a relatively low acceleration at about 10. You will notice at a particular velocity that it will stall. This is your stall velocity. I would take the stall velocity and reduce it by about 30% to 50% which should give you a good final safe velocity.

    Acceleration:
    Once the velocity is found, raise the acceleration until it start to stall at a low velocity. Reduce the acceleration by about the same percentage to stick with a safe acceleration.

    The acceleration is mostly dependent on torque (current) and the top speed is dependent on the amount of voltage.

    Give some tests with all of the axes running at the same time. If you notice and stalling, reduce velocities and acceleration depending on when the stall happens (top end, or acceleration curve).


    X-axis
    “CW8060 (6.0A) Driver”
    Set to 5.43A, 1/16 Microstep
    Dipswitches: 01100110 (“0”=down, “1”=up)
    Mach3 Motor Tuning: 914.29 steps/in
    Y-axis
    “CW8060 (6.0A) Driver”
    Set to 5.43A, 1/16 Microstep
    Dipswitches: 01100110
    Mach3 Motor Tuning: 914.29 steps/in
    Z-axis
    “CW8060 (6.0A) Driver”
    Set to 5.43A, 1/4 Microstep
    Dipswitches: 01100100
    Mach3 Motor Tuning: 1600 steps/in

    Additional Information:


    Additional Information:


    Additional Information:
    4th axis


    Additional Information:

    Click the link to respond:
    While motor tuning what are the recommended steps per inch, velocity, and acceleration for the GreenBull CNC?

  • Please share what versions of ReplicatorG, Python, Java, Firmware and the Arduino drivers you are currently using for the whiteAnt 3d printer.

    We use the version 0024 of replicatorG which works quite well. The firmware is specified on the videos as you perform the installation. You can find the videos on this page: https://www.buildyourcnc.com/whiteAnt3DPrinterandCNCMachine.aspx

    Click the link to respond:
    Please share what versions of ReplicatorG, Python, Java, Firmware and the Arduino drivers you are currently using for the whiteAnt 3d printer.

  • I bought your 3 axis combo and need to know what name brand is the motors and their ounces and the drivers

    Surely you know the brand motors you sold me?

    Click the link to respond:
    I bought your 3 axis combo and need to know what name brand is the motors and their ounces and the drivers