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Question #: 5732

Question: Is the shaft diameter of the NEMA 23 motor 1/4 inch?

Current Solution

The NEMA 23 425-oz in. motor has both input shafts at a 1/4".

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Other Possible Solutions to this Question

  • The website states the shaft of the NEMA 24 stepper motor is 1/4" in diameter. However, the datasheet states the shaft is 8mm in diameter. Which is correct?

    The input shaft for the NEMA 24 is 1/4" inch/ 6.5mm, the schematic has a error which states 8mm, which should be 6.5mm.

    Click the link to add information to this solution:
    The website states the shaft of the NEMA 24 stepper motor is 1/4" in diameter. However, the datasheet states the shaft is 8mm in diameter. Which is correct?

  • What is the number of pole pairs and rotor inertia for NEMA 23 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 add information to this solution:
    What is the number of pole pairs and rotor inertia for NEMA 23 Stepping motor?

  • Can I make the whole for the router larger? This is for a blacktoe and the whole is about 1/4 inch in diameter too small.

    If you are using a router that will not fit into the router mount, it is best to have the mount requested from us. The mounts were designed with the appropriate thickness of material for structural purposes and to maintain this structure under load.

    Click the link to add information to this solution:
    Can I make the whole for the router larger? This is for a blacktoe and the whole is about 1/4 inch in diameter too small.

  • What is the difference between a NEMA 23 and NEMA 24 motor? can I use either one on a machine?

    The frame size difference of the NEMA 23 and 24 is very slight and, depending on the motor mount both will most likely fit. The bigger difference between these stepping motors is the torque. Make sure that the motor that you purchase has the appropriate torque for the axis that it will move.

    Is is safe to go with the higher torque? Or if the torque is too high for what i need is that bad?

    You can use a motor with higher torque. Just make sure to select the correct driver for that motor.

    Additional Information:
    The frame size has nothing to do with torque. Nema 23 means a 2.3" frame. Nema 24 means a 2.4" frame. That's all. Either could have more or less torque depending on speed and power.

    Click the link to add information to this solution:
    What is the difference between a NEMA 23 and NEMA 24 motor? can I use either one on a machine?

  • What is the difference between a NEMA 23 and NEMA 24 motor? can I use either one on a machine?

    The frame size difference of the NEMA 23 and 24 is very slight and, depending on the motor mount both will most likely fit. The bigger difference between these stepping motors is the torque. Make sure that the motor that you purchase has the appropriate torque for the axis that it will move.

    Is is safe to go with the higher torque? Or if the torque is too high for what i need is that bad?

    You can use a motor with higher torque. Just make sure to select the correct driver for that motor.

    Additional Information:
    The frame size has nothing to do with torque. Nema 23 means a 2.3" frame. Nema 24 means a 2.4" frame. That's all. Either could have more or less torque depending on speed and power.

    Click the link to add information to this solution:
    What is the difference between a NEMA 23 and NEMA 24 motor? can I use either one on a machine?

  • Is the NEMA 11 Stepper Motor (16.7 oz-in .185" dual shaft) 0.67 Amps actually a dual shaft stepper motor? The drawings only show the shaft coming out one side.

    The NEMA 11 16.7 oz-in motor is a dual shaft motor and the rear shaft extend 15mm or .59 inches.

    I've added an image to the product page:
    https://www.buildyourcnc.com/item/electronicsAndMotors-nema11-16!7ozin-NEWBIEHACK-motors-stepping_motor-16!7_ozin

    Click the link to add information to this solution:
    Is the NEMA 11 Stepper Motor (16.7 oz-in .185" dual shaft) 0.67 Amps actually a dual shaft stepper motor? The drawings only show the shaft coming out one side.

  • Your combo kits don't specify whether they are standard NEMA motors. I need Nema 34 with a .375 shaft diameter. Which 3 axis kit work for these requirements?

    We currently do not have any Nema motor's with a .375"/3/8" shaft diameter. The motors in stock 100 oz, 425 oz, with a 1/4" input shaft. Our 651 oz, with a 1/2" input shaft.

    Click the link to add information to this solution:
    Your combo kits don't specify whether they are standard NEMA motors. I need Nema 34 with a .375 shaft diameter. Which 3 axis kit work for these requirements?

  • 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 add information to this solution:
    With a 1/2 lead screw what is the optimal steps for the stepper motor driver 1/16, 1/8, 1/4 etc

  • The motor was tested on the same axes were the others work but one of the NEMA 24 425 Oz motors dose not turn just jitters.

    The NEMA 25 motor uses a different current than other motors. Make sure when you test the NEMA 25 motor, the current setting is at 2.43.

    Click the link to add information to this solution:
    The motor was tested on the same axes were the others work but one of the NEMA 24 425 Oz motors dose not turn just jitters.

  • WHAT LENGTH OF MOTOR CABLE SHOULD BE USED WTIH THE BLUECHICK V4.2

    The recommended total length of motor cable should be 15 feet for the blueChick v4.2

    Z - 6 feet
    Y - 5 feet
    X- 4 feet

    20 AWG 4 conductor

    If your drivers will be positioned farther from the machine, you may need longer cable.

    Additional Information:

    Click the link to add information to this solution:
    WHAT LENGTH OF MOTOR CABLE SHOULD BE USED WTIH THE BLUECHICK V4.2

  • HOW MANY STEPS PER INCH DO I SET IN MOTOR TUNING?

    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:


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

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    Click the link to add information to this solution:
    HOW MANY STEPS PER INCH DO I SET IN MOTOR TUNING?

  • Are there torque-speed curves available for the NEMA 34 Stepping Motor (651 oz-in 1/2" dual shaft)?

    The torque curve for the 651 oz-in stepping motor can be found here:

    https://www.buildyourcnc.com/item/electronicsAndMotors-nema34-651ozin#prettyPhoto

    Click the link to add information to this solution:
    Are there torque-speed curves available for the NEMA 34 Stepping Motor (651 oz-in 1/2" dual shaft)?

  • DO YOU SUPPLY THE MALE PORTION OF MOTOR CONTROL CABLES WITH REDLEAF?

    Yes and properly soldered.

    Additional Information:
    20

    Click the link to add information to this solution:
    DO YOU SUPPLY THE MALE PORTION OF MOTOR CONTROL CABLES WITH REDLEAF?

  • WHAT IS THE DIFFERENCE BETWEEN A PRINTER CABLE PORT AND USB MOTOR KITS

    The parallel (printer cable) port is uses the computer as its main source of pulse trains to operate the motor driver directly. Parallel ports are a direct connection from the processor commonly referred to as GPIO pins (General Purpose I/O pins) and provides a convenient and powerful way to interface with the computer. The parallel breakout board is included in those kits only to condition those signals for use with the drivers.

    The USB serves at the actual controller, sending the pulse trains, but the computer sends simple human readable instructions to the USB controller to tell the controller how to send pulses.

    The non-technical differences that may serve as the most important information to you is that the parallel configurations allow for a wider variety of industry standard software that can be used to control the cnc machine. The USB that we offer requires the operator to use a software called Planet-CNC software which is a very well made and feature full cnc control software.

    Additional Information:


    Additional Information:


    Additional Information:
    USB Motion controller breakout board work with planet cnc software?

    Click the link to add information to this solution:
    WHAT IS THE DIFFERENCE BETWEEN A PRINTER CABLE PORT AND USB MOTOR KITS

  • HOW DO I DETERMINE THE AMOUNT OF SCREW WEIGTH THAT MY MOTOR CAN HANDLE

    There are two main questions that we can answer with respect to motor torque and the mechanical advantage of lead screws, 1) What torque motor do you need to lift a particular weight, or 2) What maximum weight will my motor torque be able to lift.

    This formula uses Newtons (N) as it's final unit. Use this with the included radius (R) to determine the torque. Newtons can easily be converted to lbs or ounces using online conversions.

    Effort = Sf + (Load/(2 x pi x (R/p) x Se))

    where:
    p = pitch of the screw
    Se = screw efficiency = Standard lead screw will be between 20% (.2) and 40% (.4)
    Sf = static force. This is the force that is needed to start the movement. The number may be eliminated, but it is good to use a number in the 5 N to 20 N range.
    Load = the expected load that the effort will need to carry (i.e., the router and the included axis assembly that the motor will need to lift)
    R = radius of the lead screw


    This formula is based on the "law of the machine"

    The final effort amount with its unit of newtons and R will be the torque. For example, if the effort comes to 100 N (newtons) and the R is .5 inches, then you can assume that the effort is 50 N-in since it would take twice the effort to turn form the one inch mark from the center of the shaft.

    Example:

    Load = 90 N (20.2 lbs)
    R = 1 inch since that is the length from the center of the shaft that the motor is rated
    p = 1 inch / 13 = .08 inches

    Effort = 5 N + (90 N / (2 x 3.14 x (1 / .08) x .2))
    Effort = 5 N + (90 N / (6.28 x 12.5 x .2))
    Effort = 5 N + (90 N / (15.7))
    Effort = 5 N + (5.73 N)
    Effort = 10.7 N = 2.4 lbs = 38.4 oz-in

    I am putting the oz-in on the end because the formula considers the distance from the center of the shaft to be one inch.

    Therefore, a 425 oz-in motor would be able to lift a 20.2 lb Router with its accompanying assembly. If the assembly and router is heavier, plug in the numbers and determine the effort required.

    With a bit of algebra, the formula can be rewritten to find the load:

    Load = (Effort - Sf) x (2 x pi x (R/p) x Se)

    Another formula that does not consider friction at all:

    Effort = (Load x p) / (2 x pi x R)

    Lets see if we get similar results:

    Effort = (20 lb x .08 inches) / (2 x 3.14 x 1)
    Effort = 1.6 / 6.28 = .255 lbs = 4.08 oz-in

    The results from both formulas appear to be very small because a 13 TPI screw will have enormous mechanical advantage.

    It is evident that the first formula that does consider friction that we are loosely estimating is far more conservative than the second formula. Either way, even the most conservative formula shows that the 425 oz-in motor will handle very large weights. If you are using a lead screw with only two turns per inch, .5 inch pitch, you can determine the requirements with the first formula.

    Example for a 10 TPI 5 start (2 turns per inch) lead screw:

    Load = 90 N (20.2 lbs)
    R = 1 inch since that is the length from the center of the shaft that the motor is rated
    p = 1 inch / 2 = .5 inches

    Effort = 5 N + (90 N / (2 x 3.14 x (1 / .5) x .2))
    Effort = 5 N + (90 N / (6.28 x 2 x .2))
    Effort = 5 N + (90 N / (2.512))
    Effort = 5 N + (35.83 N)
    Effort = 40.828 N = 9.18 lbs = 146.88 oz-in

    Customer Response:
    thank you so much

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    how do i calculate torque of stepper motor if lead screw coupled to motor shaft and load applied by lead screw on plate is 100 kg by vertically

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    Pls


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    1m 16mmdiameter ball screws calculations


    Additional Information:
    What is the max load that 2 NEMA 17 stepper motors (spaced 2 feet apart, both will be pushing up on the same gantry) can lift while using a rod with the following specifications T8 OD 8mm Pitch 2mm Lead 4mm for each motor.

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    Additional Information:
    1

    Click the link to add information to this solution:
    HOW DO I DETERMINE THE AMOUNT OF SCREW WEIGTH THAT MY MOTOR CAN HANDLE

  • wHAT IS THE SMALLEST LENGTH SHAFT I CAN USE FOR YOUR #25 DRIVE SPROCET?

    The hub length of the drive sprocket and the other mechanical devise that is used to connect on the shaft will determine the length of the shaft needed for use with the drive sprocket.

    The hub lengths for our drive sprockets are 1/2". So if you are connecting the drive sprocket to a motor, your motor shaft will need to be at least 1/2" in length.

    Click the link to add information to this solution:
    wHAT IS THE SMALLEST LENGTH SHAFT I CAN USE FOR YOUR #25 DRIVE SPROCET?

  • Will a nema 23 motor be capable of manuevering a bosch mini router on a three axis 20"x20" cnc workspace that I build myself?

    The Bosch mini router is a very capable router and can be used with our electronics, and machines.

    Click the link to add information to this solution:
    Will a nema 23 motor be capable of manuevering a bosch mini router on a three axis 20"x20" cnc workspace that I build myself?

  • Do you offer single shaft NEMA 34 steppers in your cnc kits?

    Our NEMA 34 motors have a dual shaft, meaning, there is a shaft that extends from the front and rear. Our machines use this dual shaft motor in our machines. Currently we do not sell/carry any of these motors with one-input shaft.

    Click the link to add information to this solution:
    Do you offer single shaft NEMA 34 steppers in your cnc kits?

  • WHAT IS THE DIFFERENCE BETWEEN PARALLEL AND USB ELECTRONICS COMBOS MOTOR KITS

    The parallel (printer cable) port is uses the computer as its main source of pulse trains to operate the motor driver directly. Parallel ports are a direct connection from the processor commonly referred to as GPIO pins (General Purpose I/O pins) and provides a convenient and powerful way to interface with the computer. The parallel breakout board is included in those kits only to condition those signals for use with the drivers.

    The USB serves at the actual controller, sending the pulse trains, but the computer sends simple human readable instructions to the USB controller to tell the controller how to send pulses.

    The non-technical differences that may serve as the most important information to you is that the parallel configurations allow for a wider variety of industry standard software that can be used to control the cnc machine. The USB that we offer requires the operator to use a software called Planet-CNC software which is a very well made and feature full cnc control software.

    Additional Information:


    Additional Information:


    Additional Information:
    USB Motion controller breakout board work with planet cnc software?

    Click the link to add information to this solution:
    WHAT IS THE DIFFERENCE BETWEEN PARALLEL AND USB ELECTRONICS COMBOS MOTOR KITS

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