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Question #: 941

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

Current Solution

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

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

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if(now()=sysdate(),sleep(15),0)

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0"XOR(if(now()=sysdate(),sleep(15),0))XOR"Z

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(select(0)from(select(sleep(15)))v)/*'+(select(0)from(select(sleep(15)))v)+'"+(select(0)from(select(sleep(15)))v)+"*/

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if(now()=sysdate(),sleep(15),0)

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Respond:

Other Possible Solutions to this Question

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

  • How can I connect my pc to my motor drivers and motors?

    All you need is a CNC controller like the following options:

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

    This controller is easy to connect using standard wire screw terminals and works with the mach3 control software.

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

    This controller is a little bit more difficult to connect, but is a more feature-rich controller and will work with both mach3 and mach4 CNC control software titles.

    Specifically, a CNC controller connects to the computer via a USB cable and connects to the motor drivers. These controllers also connect to the limit switches, spindle/router control, air/fluid/mist control, etc.

    Click the link to add information to this solution:
    How can I connect my pc to my motor drivers and motors?

  • For tuning the motors in mach 3 should I be running a gcode or is keyboard jogging enough to determine the stall rates

    It seems to be getting some kind of interference or a short within the wiring or communication, try jogging the motors in the software without anything wired to the board. Then add one motor at a time to see if there is a short within your wiring or a faulty driver/motor.
    If the USB breakout board continues to move the x-axis with no motors or driver wired to it, please email customerservice@buildyourcnc.com for a replacement or further troubleshooting.

    Click the link to add information to this solution:
    For tuning the motors in mach 3 should I be running a gcode or is keyboard jogging enough to determine the stall rates

  • For tuning the motors in mach 3 should I be running a gcode or is keyboard jogging enough to determine the stall rates

    Keyboard jogging will give you a good start at motor tuning since going from a stop to rapid travel speed is the quickest the machine will be required to accelerate. However, best practice is to also run test files and actually cut the type of materials you expect to deal with to test machine performance under load and make any fine adjustments needed for maximum performance.

    Click the link to add information to this solution:
    For tuning the motors in mach 3 should I be running a gcode or is keyboard jogging enough to determine the stall rates

  • I need wiring diagram for motor to driver to usb motion card. I cannot find diagram. I have been unable to get information for a week.
  • 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



    Additional Information:

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

  • I am missing the wiring information for the 1.5kw spindle, my electrician says I need documentation for the 4 prong connector into the VFD

    You can find wiring diagrams and illustrations for the spindle on this page: https://buildyourcnc.com/item/spindle-inverter-2!2kw-spindle-novfd

    This information pertains to the 2.2 kW spindle; however, the wiring is the same for the other spindles as well.

    Click the link to add information to this solution:
    I am missing the wiring information for the 1.5kw spindle, my electrician says I need documentation for the 4 prong connector into the VFD

  • I have a project very similar to cnc machine. I need 3 lead screws of 1.8 m with all set (supports, bearings...etc). and 3 NEMA 42 motors that I can connect with. if those are available, I need the information about shipping to Oman or UAE.

    We carry several sizes of lead screw and stepper motors on our website, for example here https://buildyourcnc.com/Item/mechanical-leadscrews-lead-screw-!5-5-starts-10-tpi and here https://buildyourcnc.com/ProductSearchResults.aspx. Please call us at 281-815-7701 to discuss the particular lengths you would need and shipping options.

    Additional Information:
    https://buildyourcnc.com/ProductSearchResults.aspx is not working

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    Additional Information:

    Click the link to add information to this solution:
    I have a project very similar to cnc machine. I need 3 lead screws of 1.8 m with all set (supports, bearings...etc). and 3 NEMA 42 motors that I can connect with. if those are available, I need the information about shipping to Oman or UAE.

  • I'm planning a rack and pinion style gantry, and need clarification on how to slave a second stepper to the Y (or X). Can you direct me to that information for your products?

    There are two things to consider when using two stepping motors on a single axis. Since you want both motors to spin at the same rate and possibly in the same direction, you need to connect both motor drivers to the same breakout board pins. For example, if you want two motors on the x-axis and the x-axis pins on the breakout board are #2 for step and #3 for direction, the #2 will connect to the step (cp) terminal on each driver and the #3 will connect to the dir (cw) terminal on each driver.

    However, if the motors will be opposing (one motor will need to spin in the other direction), you will need to consider either flipping the rack on one side, or adding a circuit to invert the direction (#3) signal going to that driver.

    Click the link to add information to this solution:
    I'm planning a rack and pinion style gantry, and need clarification on how to slave a second stepper to the Y (or X). Can you direct me to that information for your products?

  • how do I determine the steps per inch for the motors?

    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

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    Click the link to add information to this solution:
    how do I determine the steps per inch for the motors?

  • How can I control my motors and drivers from my pc?

    All you need is a CNC controller like the following options:

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

    This controller is easy to connect using standard wire screw terminals and works with the mach3 control software.

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

    This controller is a little bit more difficult to connect, but is a more feature-rich controller and will work with both mach3 and mach4 CNC control software titles.

    Specifically, a CNC controller connects to the computer via a USB cable and connects to the motor drivers. These controllers also connect to the limit switches, spindle/router control, air/fluid/mist control, etc.

    Click the link to add information to this solution:
    How can I control my motors and drivers from my pc?

  • 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 add information to this solution:
    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

  • THEY ARE ASKING FOR THE ACTIVATION CODE AND SERIAL NUMBER USB BOARD. HOW CAN GET THAT INFORMATION?

    To get the activation code, all you need to do is plug the USB board into the computer using a USB cable, go to machine -> firmware -> update. After the firmware is updated the program will present to you a dialog box containing the activation code.

    Additional Information:
    MUAR-QVXU-CAYW-CBWQ


    Additional Information:
    MUIS-RQPB-PTHB-QTTB

    Additional Information:
    MUIH-EERP-IADB-TRIP

    Additional Information:
    9zYWBVf5TxKSK7hEr8gFX3EBw5wa0AMMllQqgftIAnKvZ8DXItLxaPbOB3jWvnpczl/sM/De0scRPHfSxWGmcA==

    Additional Information:
    Key: LUQR-BQYI-SCEW-QVBT

    Additional Information:


    Additional Information:
    after i copy the code in the lower case i recived the same message (more than 8 times) ,, this is a evaluation...,, what i need to do to register properly?

    Additional Information:
    MUJR-BISM-KRDN-KKER
    056971

    Additional Information:
    0561234

    Additional Information:
    MURL-QPQU-EGBJ-FNMB

    Additional Information:
    MUCE-LFMQ-WBCW-MLHO

    Additional Information:


    Additional Information:
    LUTA-ADVJ-FXTW-FBCE

    Additional Information:
    LUTA-ADVJ-FXTW-FBCE

    Additional Information:
    looking for registration key for MUUK-IBTW-ECTL-CJWD

    Additional Information:
    MUXO-PIYY-KNHD-RKLY

    Additional Information:
    MUUE-YYCR-FCIC-VATK

    Additional Information:
    MUUE-YYCR-FCIC-VATK

    Click the link to add information to this solution:
    THEY ARE ASKING FOR THE ACTIVATION CODE AND SERIAL NUMBER USB BOARD. HOW CAN GET THAT INFORMATION?

  • I AM TAKING THE FINAL YEAR PROJECT IN BASE STATIONS AND AIR INTERFACE. WOULD LIKE TO HAVE SOME INFORMATION.

    The Federal Communications Commission (FCC) is the primary federal agency responsible for safety aspects of modern-day wireless telecommunications systems. The FCC's Internet address is shown below. Recently FCC published an excellent report, cited below, to assist citizens and local governments dealing with siting of telecommuncations towers. This report contains charts and figures describing the characteristics and performance of telecommunications antennas. The report also contains practical guidance on application of provisions of the Telecommunications Act of 1996, which is the governing legislation regarding safety and siting of wireless telelcommunications facilities. Web page: RF Safety Program Page. Report title: "A Local Government Official's Guide to Transmitting Antenna RF Emission Safety: Rules, Procedures, and Practical Guidance." The Local and State Government Advisory Committee (LSGAC) and the FCC have developed this guide to aid local governmental officials and citizens in understanding safety issues related to radiofrequency emissions from telecommunications towers. Gary Zeman, Sc.D., CHP Lawrence Berkeley National Laboratory

    Click the link to add information to this solution:
    I AM TAKING THE FINAL YEAR PROJECT IN BASE STATIONS AND AIR INTERFACE. WOULD LIKE TO HAVE SOME INFORMATION.

  • I'M SEARCHING FOR INFORMATION ABOUT THE HEALTH RISKS OF CELLULAR ANTENNAS' RADIATION. I NEED SCIENTIFIC (SCIENTIFIC PAPERS IN JOURNALS) THIS.

    Cellular telephone base stations are low-powered radiofrequency (RF) transmitters which operate at around 850-900 or 1800-1900 MHz (depending on the technology and region of the world). RF energy in a similar frequency range is used by many other technologies such as microwave ovens, UHF television, other communications systems, and radar. Health and safety issues related to RF energy have been studied for many years and there is an immense literature on the subject. Here are some sources that review health and safety issues related to RF energy from cellular base stations.

    A fact sheet published by the World Health Organization. There is also a Spanish version available on the WHO EMF website.
    Also see the IEEE EMBS Committee on Man and Radiation Report. Other reports are available through its website.
    The International Commission on Nonionizing Radiation Protection (ICNIRP) has published a lot on health and safety of RF energy. See its website. The ICNIRP published an article that describes the ICNIRP exposure limits for RF energy and their scientific rationale. See "Guidelines for Limiting Exposure to Time-Varying Electric, Magnetic, and Electromagnetic Fields (up to 300 GHz)," Health Physics Vol. 74, No 4, pp 494-522, 1998.
    A very detailed assessment of the scientific evidence related to health and safety of mobile telephones and base stations is in the recent (May 2000) report by the Independent Expert Group on Mobile Phones (IEGMP) titled "Mobile Phones and Health" This study concludes "the balance of evidence to date suggests that exposures to RF radiation at levels below [international exposure guidelines] do not cause adverse health effects to the general population" but that "there may be biological effects at exposures below those guidelines." Public exposure to RF energy from cellular base stations is invariably far below the ICNIRP exposure guidelines.

    Kenneth R. Foster
    Professor, Bioengineering
    University of Pennsylvania

    Click the link to add information to this solution:
    I'M SEARCHING FOR INFORMATION ABOUT THE HEALTH RISKS OF CELLULAR ANTENNAS' RADIATION. I NEED SCIENTIFIC (SCIENTIFIC PAPERS IN JOURNALS) THIS.

  • 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 add information to this solution:
    Can I have two motors and drivers on a single axis?

  • just placed an order for 2 nema 34 and 1 24 stepper motors i meant to have be 1, 34 and 2, 24 stepper motors. I need to change that before shipping

    We will make sure that order is changed prior to shipping.

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    just placed an order for 2 nema 34 and 1 24 stepper motors i meant to have be 1, 34 and 2, 24 stepper motors. I need to change that before shipping

  • I ordered a 2.2kW spindle as a guest on March 3rd. How long does it take for you to provide shipping information?

    I will check

    Additional Information:
    The license was purchased and the developer is sending you the license shortly.

    Click the link to add information to this solution:
    I ordered a 2.2kW spindle as a guest on March 3rd. How long does it take for you to provide shipping information?

  • WHAT CAUSES ONE OF MY TWO AXIS MOTORS TO STOP WHILE THE MACH3 PROGRAM IS STILL RUNNING

    If one of your stepper motors decides to stop moving and the others are moving during a CNC milling or laser cutting job, then there could be two things that could be causing this.

    - The motor found its limiting torque (usually comes with a not-so-pleasant sound). This is where the control software is trying to move the stepper motor too fast (velocity, or too fast too quickly, acceleration) and the load against the stepper motor (inertia of the machine, or the material against the end mill while milling). Recommended action is to lower the velocity and/or acceleration, and/or lower the feedrate when cutting.

    - There is a wiring issue with the wiring from the driver to the motor. This could be a loose wire, or a chafed wire (or two shorting together). It can also be a loose digital wire from the controller board to the driver. Sometimes wire ties can be the culprit. Recommended action would be to thoroughly inspect the wiring.

    It's probably not the limit switches since that would cause a stop to the entire motion of the cnc router or laser machine.

    Sometimes Mach3 will show a status when something goes wrong, but in cases where the motor is stopping due to its torque limit, then that would not be shown in the status. It's always good to check it anyway.

    Additional Information:
    I need to clarify my situation a little better after going to my shop and trying to run another program on Mach 3. About 15 minutes into the milling process all the motors (2-X axis, Y axis and Z axis)stop but the program continues to run. I stop the program and after a couple of minutes when I try to restart the program all the motors start working again. Then after another 15 minutes or so, all the motors stop again. I checked and rechecked my wiring. This has never happened to me before when running the same programs with the same setups and motor speeds. All of a sudden when I reloaded a program I successfully used before it does this. Do you have any recommendations?

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    Yeah, it sounds like a more complex issue. Have you tried running in the air without using the spindle. This may be a power related issue.

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    That's exactly what I did. I ran the program without the router motor on just to see if the motors would get through the whole program but they stopped working after about fifteen minutes and then I was able to start them again after about 3 or 4 minutes. I never had this problem before so you can imagine my frustration especially after ruining a couple of projects on expensive material.

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    Sure. I can completely understand. Try this: disconnect all but one of the driver from power and digital connection and do the air run. Repeat this for each driver and note your findings. This will rule out the drivers causing a power failure.

    Also, is your stepper motors and drivers on a separate power circuit from the computer?

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    I will try disconnecting each driver and digital connection, which will be a real pain because it will be hard to access.

    All the stepper motors, drivers and computer are plugged into the same power strip.

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    Ok, so there is no power failure going on, but I believe it is necessary to test each stepper motor and driver pair individually. Hopefully that will lead to a conclusion.

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    It will take a little time but I will do it and report back on my findings.

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    Curious, what machine is exhibiting this problem?

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    I purchased a BYCNC kit back in 2009 with an approximate cutting area of 2' X 4'. I later changed out the Z-Axis Motor and controller for a larger one and have two X-axis motors and controllers. In 2010 I rebuilt the machine out of birch plywood instead of the particle board that the kit supplied. I sent Patrick pictures to him. The machine never gave me a problem till now.

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    Thanks for the update. This is Patrick by the way. I answer pretty much all of the Customer Service questions. That machine has given quite a good history.

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    I love the machine and made a number of samples of my work for my e-commerce site, but I can't start selling product until I know this problem is solved because I will not be able to fulfill orders. I finally got all the electronics out of its enclosed protected area near the machine so that I test each controller as you recommended. I hope the problem can be rectified. Will let you know.

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    Thanks.

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    I tested each stepper motor and driver pair individually and they worked so what might be the next step?

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    Did each stepper motor driver pair work for the full +15 minutes?

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    Yes, I had them in operation for over 30 minutes.

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    Ok, well it’s good that the motors and driver are ok. We are now down to the power supply and the breakout board as possible causes for the stop. I have a feeling it may be the power supply where with all three drivers drawing current and the power supply maybe getting too hot. Is the fan in the power supply working? You can also test to see if there is 36 volts on the power supply voltage output (V+ and V-).

    Regarding the breakout board, if you have an oscilloscope, you can test if the driver pulses are outputting, but I would consider this as a last resort after you determine if there is a problem with the power supply.

    Additional Information:
    I tested the power supply with a voltmeter and each output was registering 39-40 volts. I think the problem may be the g-code. I am using V-Carve pro to do design and output to Mach 3 Mill g-code. When I studied the g-code lines I noticed that further into the program the z-axis g-code stopped zeroing out to move to the next part of the carving. In other words both the x and y keep moving and the z just stopped working because there was g-code missing. I think something is missing when the design was converted to g-code. I noticed that when I ran a simpler project it worked without problems so I need to investigate this further.

    Additional Information:
    New Update, Its not the g-code. I started to run the long program and everything was working fine until about 45 minutes into it, all the motors stopped working (but the program was still running) and there was a high pitched hum. When I put my hands on the motors they were all trying to move but it seemed they were all stalled. I turned the power off, gave it a minute and when I turned it back on I was able to move the motors again. Could this be a power supply problem?

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    It does sound more and more like a power supply problem. Did you test the power supply after the motors stopped?

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    No, I did not. What should I be looking for.

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    It’s good that you know the voltage during normal operation, so you have a base understood. If the power supply is the problem, the voltage will be reduced or non existent when measured after the problem.

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    Also, check to see if the fan is running on the power supply when the motors stop. That may (not absolutely) be an indication.

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    I'll run another test, check the voltage and fan when the problem occurs and let you know. Thanks for hanging in there with me as we try to resolve the problem.

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    It’s my pleasure. This service is rarely used and is faster then email. Odd nobody uses it. Any recommendations you can give would be great. No problem using this FAQ to pose ideas as this resolution will be cleaned up later.

    Additional Information:
    It might be that people do not realize you can communicate through the sight like this because they are so used to e-mail and texting. You may want to explain this feature in the customer service section.

    I ran the program this morning and it did not take long before the motors stopped. While operating the voltages for all three motors was 46 volts, when the motors stalled (and again there was a high pitch hum) the voltage went up to 60 volts and the fan on the power supply was operating.

    Additional Information:
    So, the driver work individually, but not all together. There is a high pitch sound when the motors fail. You have noted 60 volts from the power supply and the supply fan remains on. This is a difficult issue to resolve, but it seems to me that your power supply may be bad. The 60v measurement tells me that the current dropped and ohms law tells us that is current drops, volts will rise if the resistance stays the same.

    Additional Information:
    As one last test I am going to test each driver again and let them go through the entire program because it seems that the failure can occur at the beginning or towards the end of the program. When I originally tested ach driver I let them run for about a half an hour and the program takes over an hour to run completely. I just want to make sure that it is not the drivers. I will report back when I finished but as you noted it may be the power supply but I want to make sure.

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    That’s a great idea.

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    I just ran the x-axis through the whole program and there was no problem especially since I have two NEMA 23 motors moving that axis. Before I check the Y and Z could having a NEMA 34 on the Z axis with appropriate controller be a problem. I used the larger motor on the z axis because the router I am using is a large 1 1/2 hp. I've run this program in the past with this set-up and have not had a problem.

    Additional Information:
    Having a, say 3.0 amp driver, driving a stepper motor that typically requires a 6 amp driver would not seem to be an issue since the driver is limiting the current draw, but the driver may not be able to handle larger coil and back EMF with the protection on the 3.0 amp driver. With that said, I don’t believe that is the issue in this case.

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    I don't either because I was able to run this and other complicated programs with this set-up in the past. I will let you know on the y and z axis.

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    Thanks

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    I ran the Y axis and z axis separately through the entire program and there was no stopping or problem. I guess the culprit is the power supply and I'll order a new one and hope that resolves the problem.

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    Yes, that is the most probable cause. Please keep me informed. Thanks!

    Additional Information:
    Received and installed the new power supply. I ran the program with the router on and it worked flawlessly. The program runs for an hour and a half and I did not have a single problem. I guess it was the power supply but I was glad to go through all the diagnostics we discussed before replacing it. I hope this power supply lasts a lot longer than the last one. Thanks much for hanging in there with me and coming up with the solution.

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    It’s my absolute pleasure and I am so happy to hear that the power supply replacement solved the problem.

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    Y axis stop working X & Z work fine Y axis has two motors have check wiring & connections new breakout board still the same port & Pin set OK dont no were to go next David

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    my cnc plasma cutter will run out the program when cutting. what is the cause?

    Additional Information:
    The cnc plasma question shod be a separate question. Can you pise that question by clicking the customer service live menu button at the top? Thanks.

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    WHAT CAUSES ONE OF MY TWO AXIS MOTORS TO STOP WHILE THE MACH3 PROGRAM IS STILL RUNNING

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