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Question #: 3653

Question: Can I drive my X axes with 2 motors using one motor driver?

Current Solution

It is not recommended to drive two stepping (stepper) motors with a single driver. The driver will need to output the sum of the current that is rated for both motors. The best way to drive two motors on the same axis, or if you need the motors to spin in a synchronous fashion, then have each motor connected to their own driver and connect the signal wires from the drivers to the same signal step and direction pin on the breakout/interface board.

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Other Possible Solutions to this Question

  • Can I have two motors and drivers on a single axis?

    Yes, you can have two drivers connected to a single axis. If you want the two drivers/motors to work as a single, more concerted pair, then I would suggest connecting the two drivers to a single step pulse and direction signal.

    That is to say:
    driver 1 and driver 2 have wires connecting from the CP terminals of the drivers to a single step terminal on the interface board (USB or parallel breakout board), and the CW terminals of the drivers connected to a single direction terminal on the interface board.

    If the motors need to spin in the opposite directions, simply reverse one of the the motor A B coil connections (i.e. wires that would go to A+ and A- is connected to the B+ and B-, and the same with the B+ and B- to the A+ and A-). You can alternatively resolve this mechanically if desired.

    Click the link to respond:
    Can I have two motors and drivers on a single axis?

  • Can you offer me a combo with motors NEMA17, NEMA23 and NEMA34 and a control box ready for plug and play operation? (this including motor drivers and cables)

    We have a redLeaf and redSprout system available which has all of the CNC electronics and computer system assembled as a plug and play system.

    Click the link to respond:
    Can you offer me a combo with motors NEMA17, NEMA23 and NEMA34 and a control box ready for plug and play operation? (this including motor drivers and cables)

  • My plasmacam cnc machine has servo motors with an optical encoder to provide position sensing. Can the pokeys57 cnc controller and drivers run those servos?

    Yes, the Pokeys57CNC can control standard CNC or plasma machine servos as servo drives accept step and direction signals just like stepper motors.

    Click the link to respond:
    My plasmacam cnc machine has servo motors with an optical encoder to provide position sensing. Can the pokeys57 cnc controller and drivers run those servos?

  • 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

  • Can i wire my drivers and motors in parallel to your laser controll system to add a laser unit on my router?

    It is possible to add the laser control system to an existing CNC router but there are a few considerations:

    All of the signal wires from the laser controller that connect to the drivers drivers and all of the signal wires from the CNC controller that go to the drivers will need to first pass through a tri-state gate buffer chip that will allow one set of signal wires to be switched off and the other set switched on.

    We have a board that does this in development, but If you wish to accomplish this on your own, you will need:

    - 3 Quad buffer line drivers (each one can receive 4 signal wires): https://newbiehack.com/categories/newbiehack-integrated_circuits-buffer-quad-buffer-line-driver-throughhole
    - Some perf board, solder and a soldering iron, and some hookup wire.

    If this doesn't scare you, please feel free to submit additional information and let me know if you would like more information.


    Additional Information:
    You will also need a physical switch to select laser control or CNC control.

    Click the link to respond:
    Can i wire my drivers and motors in parallel to your laser controll system to add a laser unit on my router?

  • 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 bought Nema 24 motors and driver package with usb board. What do i need to have more speed? Cant even jog past 25 ipm without the motor stalling (not having enough torgue)

    We recommend checking the dip switch settings on your drivers, having the correct microstepping/amp settings along with the steps/unit will help the motors run as effective as possible.
    This is a default parameter that we use while we test our motors:
    Driver dip switch settings will be at a 1/16 microstepping and 2.7amp (11001100) for x/y-axis and the z-axis will be at 1/4 microstepping and 2.7amp (10101100).

    In planet-cnc with increasing the motor speed, you will have to modify the settings in planet-cnc (File/settings/setup) you will modify the initial speed, maximum speed, and the acceleration.
    X/Y-axis step/unit: 1422.22 initial speed:500 maximum speed:750 acceleration:25
    Z-axis step/unit: 1600 initial speed:100 maximum speed:300 acceleration:25
    The initial speed and maximum speed will have to be roughly tested and adjusted per application.
    Make sure to adjust the JOG slide bard underneath the axis controls on screen to about 750, to compensate for your x/y-axis adjustments. If left alone the speed will max out at the default setting.

    Here is a video tutorial to calculate the steps required depending on your mechanical linear motion components. (

    )

    Click the link to respond:
    I bought Nema 24 motors and driver package with usb board. What do i need to have more speed? Cant even jog past 25 ipm without the motor stalling (not having enough torgue)

  • I need to determine steps/inch mach3 setup information for my motors and drivers.

    blueChick:

    X-axis
    “CW230 (3.0A) Driver”
    Set to 1/16 Microstep, 2.7A
    Dipswitches: 11001100
    Mach3 Motor Tuning: 1422.22 steps/in

    Y-axis
    “CW230 (3.0A) Driver”
    Set to 1/16 Microstep, 2.7A
    Dipswitches: 11001100
    Mach3 Motor Tuning: 1422.22 steps/in

    Z-axis
    “CW230 (3.0A) Driver”
    Set to 1/4 Microstep, 2.7A
    Dipswitches: 10101100
    Mach3 Motor Tuning: 1600 steps/in

    blackToe:

    X-axis
    “CW230 (3.0A) Driver”
    Set to 1/16 Microstep, 2.7A
    Dipswitches: 11001100
    Mach3 Motor Tuning: 1422.22 steps/in

    Y-axis
    “CW230 (3.0A) Driver”
    Set to 1/16 Microstep, 2.7A
    Dipswitches: 11001100
    Mach3 Motor Tuning: 1422.22 steps/in

    Z-axis
    “CW230 (3.0A) Driver”
    Set to 1/4 Microstep, 2.7A
    Dipswitches: 10101100
    Mach3 Motor Tuning: 1600 steps/in

    blackFoot:

    X-axis
    “CW8060 (6.0A) Driver”
    Set to 1/16 Microstep, 2.7A
    Dipswitches: 11001100 (“0”=down, “1”=up)
    Mach3 Motor Tuning: 914.29 steps/in

    Y-axis
    “CW230 (3.0A) Driver”
    Set to 1/16 Microstep, 2.7A
    Dipswitches: 11001100
    Mach3 Motor Tuning: 1422.22 steps/in

    Z-axis
    “CW230 (3.0A) Driver”
    Set to 1/4 Microstep, 2.7A
    Dipswitches: 10101100
    Mach3 Motor Tuning: 1600 steps/in

    greenBull:

    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


    Scratch-Build / Book-Build Kit:

    X-axis
    “CW230 (3.0A) Driver”
    Set to 1/4 Microstep, 2.7A
    Dipswitches: 10101100 (“0”=down, “1”=up)
    Mach3 Motor Tuning: 1600 steps/in

    Y-axis
    “CW230 (3.0A) Driver”
    Set to 1/4 Microstep, 2.7A
    Dipswitches: 10101100
    Mach3 Motor Tuning: 1600 steps/in

    Z-axis
    “CW230 (3.0A) Driver”
    Set to 1/4 Microstep, 2.7A
    Dipswitches: 10101100
    Mach3 Motor Tuning: 1600 steps/in

    Additional Information:


    Additional Information:
    Scratch built/book CNC with NEMA 34 motors and CW8060 microstep driver

    Additional Information:

    Click the link to respond:
    I need to determine steps/inch mach3 setup information for my motors and drivers.

  • I'm planning on using your 425 oz motors and need help on selecting the right interface and driver boards. The PoKeys57 CNC USB card looks good but I wonder if the 2.5 amp driver boards shown with it are enough for the 3 amp motors?

    You can use the Pokeys57CNC board with our 3.0 amp drivers. The Pokeys57CNC has all of the headers necessary to provide the pulse train to any common stepper driver.

    Here is the link to the Pokeys57CNC interface board:
    https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach4-mach3-USB-ethernet-Board

    Here is the link to the 3.0 amp stepper motor driver:
    https://www.buildyourcnc.com/item/electronicsAndMotors-stepper-driver-3!0a

    Click the link to respond:
    I'm planning on using your 425 oz motors and need help on selecting the right interface and driver boards. The PoKeys57 CNC USB card looks good but I wonder if the 2.5 amp driver boards shown with it are enough for the 3 amp motors?

  • I am asking what to set my steps per using your kit stepper motors and a 1/2"x13 lead screw with Mach3

    Here is the formula for steps/inch (steps per inch)

    Steps = how many steps for a full ration of the motor = standard motor steps x number of microsteps for each step
    Standard motor steps for our stepping motors is 200 steps per revolution.
    Microsteps are selected on the driver and are shown as full, 1/2, 1/4, 1/8, 1/16, 1/32 etc... Use the denominator for the number of microsteps per step.

    Inches = how far the travel is for one full rotation of the motor. For the 1/2" - 13 TPI (threads per inch), the travel length will be 1"/13 or .076923". So, for one revolution of the motor, the travel distance will be .076923 inches.

    So, the steps = 200 * microsteps, let's make this 1/4 just for the formula.
    The inches will be .076923. Plug those into the formula:
    Steps / inch = (200 * 4) / .076923 This can also be written as:
    200 * 4 / (1 / 13) = 10,400

    Click the link to respond:
    I am asking what to set my steps per using your kit stepper motors and a 1/2"x13 lead screw with Mach3

  • 3d printer motors not moving fast enough. How should I configure the motor drivers?

    This will depend on the 3D printer that you are using and the mechanics involved. Specifically regarding the motor drivers, software is really what determines the speed of the motor. If the computer is not able to product the high number of pulses that is required for faster motion, then you can reduce the microstepping and configure the software appropriately for the new microstepping so the resolution is corrected (steps/inch or steps/mm).

    Click the link to respond:
    3d printer motors not moving fast enough. How should I configure the motor drivers?

  • 4 axis kit can I use 2 motors for the gantry with one controller card? or I buy the 3 axis kit instead?

    Yes, you can use the 4 axis kit and use two of the motors on the gantry. You will need to wire the gantry axis motors to the same step and direction signals on the controller interface. For example, if the gantry axis is the X axis, then on the controller step and direction terminals (CP and CW) is wired to both of the stepper motor drivers for the X axis.

    Click the link to respond:
    4 axis kit can I use 2 motors for the gantry with one controller card? or I buy the 3 axis kit instead?

  • 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

  • I have a KL23H2100-30-4B motor with a KL-4030 driver and my motor stalls if I set the rapid above 180 imp.

    What mechanical drive system are you using? If your mechanical drive system connected to the stepper motor causes the motor to spin too fast, then you will be reaching the torque limit of the motor under the load of your axis.

    Click the link to respond:
    I have a KL23H2100-30-4B motor with a KL-4030 driver and my motor stalls if I set the rapid above 180 imp.

  • I cannot turn the shaft of my stepper motor. It not even connected to a driver

    The motor is creating it's own EMF when you try to turn the shaft manually. When coils are connected (or not connected) to any circuit that is not powered can cause unpredictable results.

    The motor freezing from just turning it by hand with no connection is surely the wires touching each other. This is actually how we test if a motor is good or bad. If the motor freezes when two of the wires are touching, that means the motor is functioning properly since the magnets are causing current to flow through that coil opposing the magnet.

    Click the link to respond:
    I cannot turn the shaft of my stepper motor. It not even connected to a driver

  • 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?

  • Is there a complete wiring diagram for the Medium Combo Kit with the usb board? Your USB tutorial does not cover the modular 2.5a drivers. https://buildyourcnc.com/item/electronicsAndMotors-3axis-100-elcombo

    We are currently getting it completed for us to post it under the 2.5A stepper driver page. However here is the correct wiring procedure.

    First: Wire the 24V power supply to the 2.5A driver, by wiring +V on the power supply to 12-24V on the driver. Next wire the COM on the power supply to Ground(GND) on the 2.5A driver. GND on the driver will also go to the GND on the USB board, for specific axis. (additional 3-4 wires connected to ground will be needed for the other axes as well).

    Second: Wire the USB board to the driver(one driver per axis on the USB board):
    CP on the driver will go to CP on the desired axis on the USB board.
    CW on the driver will go to CW on the desired axis on the USB board.
    5V will go to the VCC pin on the keyboard jog pins on the USB board (check schematic here: https://buildyourcnc.com/item/electronicsAndMotors-electronic-component-USB-Controller-Breakout#prettyPhoto/2/).
    GND on the USB board to GND on the driver. (as specified in step 1).
    EN is not used.

    Personal Note:
    I would recommend that you crimp the VCC pin to a wire which could be split for the other axes as well, each driver will need 5V.

    Third: Wire the stepper motor to the driver, (using either the Nema 23 100-oz or the Nema 17 62-oz stepper motors, the wiring will be the same. For the Nema 23 the yellow and white is not connected.)
    Black to A1
    Green to A2
    Red to B1
    Blue to B2

    Fourth: Repeat steps 1-3 for each driver/motor per axis.

    Mention: Remember that GND on the driver will also go to the GND on the USB board for specific axis, and VCC pin on the USB board (keyboard jog) will go to 5V on all drivers for each axes as well, each driver will need 5V!

    Click the link to respond:
    Is there a complete wiring diagram for the Medium Combo Kit with the usb board? Your USB tutorial does not cover the modular 2.5a drivers. https://buildyourcnc.com/item/electronicsAndMotors-3axis-100-elcombo

  • With a 1/2 lead screw what is the optimal steps for the stepper motor driver 1/16, 1/8, 1/4 etc

    We typically use a 1/4 microstepping for lead screws, but you want to determine the microstepping only after you determine what resolution you want on that axis of the machine.

    The formula:
    Resolution is steps per inch or steps per milimeter

    I will go over this using steps/inch:
    steps = motor steps x driver microstepping
    inch = the amount of travel with one full stepper motor rotation

    In the case of our 1/2" 5 start 10 TPI lead screw, the axis will travel .5 inches with one stepper motor rotation.

    Let's use 1/4 microstepping (4 microsteps for each stepper motor step)

    Therefore:
    (200 steps x 4) / .5 inches =
    800 steps / .5 inches =
    1600 steps/inch

    Now let's use 1/2 microstepping (2 mistrosteps)

    (200 steps x 2) / .5 inches =
    400 steps / .5 inches =
    800 steps/inch

    Remember that increasing microsteps, the torque is also reduced, but the smoothness from the motor is increased.

    Click the link to respond:
    With a 1/2 lead screw what is the optimal steps for the stepper motor driver 1/16, 1/8, 1/4 etc

  • Can you supply a quote for a 4 axis combo kit with NEMA 17 Motors

    To select a 4 axis NEMA 17 motor and driver combination, you will need the following:

    - Four (4) NEMA 17 motors: https://buildyourcnc.com/item/electronicsAndMotors-nema17-62ozin-NEWBIEHACK-motors-stepping_motor-62_ozin

    - Four (4) drivers, either the 2.5A: https://buildyourcnc.com/item/motion%20electronics-steppermotordriver-newbiehack-Motor_Drivers-2!5_Amp_modular or the 3.0A: https://buildyourcnc.com/item/electronicsAndMotors-stepper-driver-3!0a

    - One (1) Power supply, either the 24V or 36V (recommended): https://buildyourcnc.com/item/electronicsAndMotors-power-supply

    - Finally, an interface is needed, either parallel, or USB. The USB works with planet-cnc software only. The parallel interface works with all major CNC control software: https://buildyourcnc.com/category/breakout

    Click the link to respond:
    Can you supply a quote for a 4 axis combo kit with NEMA 17 Motors