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Question #: 3411

Question: I just changed my X and Y to the ACME 1/2" 5 start lead screw. What are the motor tuning numbers. I have the book built machine.

Current Solution

The settings that will have to be change will be your steps per inch in motor tuning (mach 3), or settings/axes(planetCNC). But we do not have the actual numbers/specs that will fit your 10 TPI 5 start lead screw, here is a tutorial video which explains how to get the exact numbers you need! (

)

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Other Possible Solutions to this Question

  • On the book build machine I changed the Z axis from a 13 tpi lead screw to an acme 10 tpi 5 start lead screw. What numbers do I put into the motor tuneing boxes.

    The settings that will have to be change will be your steps per inch in motor tuning (mach 3), or settings/axes(planetCNC). But we do not have the actual numbers/specs that will fit your 10 TPI 5 start lead screw, here is a tutorial video which explains how to get the exact numbers you need! (

    )

    Click the link to respond:
    On the book build machine I changed the Z axis from a 13 tpi lead screw to an acme 10 tpi 5 start lead screw. What numbers do I put into the motor tuneing boxes.

  • On the Book Build: I'm changing the 13TPI 1/2" lead screw with the 1/2" 10 TPI Acme screw with the anti backlash nut. This is for the Z axis only. What should I know about installing it and what are the numbers I need to plug into the motor tuning area.

    The settings that will have to be change will be your steps per inch in motor tuning (mach 3), or settings/axes(planetCNC). But we do not have the actual numbers/specs that will fit your 10 TPI 5 start lead screw, here is a tutorial video which explains how to get the exact numbers you need! (

    ).
    Here is a default setting that you might be able to tune and adjust accordingly: 1600 steps, accel 400.02, velocity 5.

    Click the link to respond:
    On the Book Build: I'm changing the 13TPI 1/2" lead screw with the 1/2" 10 TPI Acme screw with the anti backlash nut. This is for the Z axis only. What should I know about installing it and what are the numbers I need to plug into the motor tuning area.

  • Hi I built a 2x4 cnc machine in 2013 using you Hardware kit and plans. I want to speed up my cnc machine by purchasing your acme leadscrew 1/2"-10 5 starts. I have an X axis at 52", a Y axis at 32" and a Z axis at 14". How do I order all 3 length pre cut to size on your website? Also can you give me a rough estimate on the shipping to Ottawa, Ontario Canada please.

    You can purchase the entire length and select local pickup. Then you can email us the cut lengths for the order and let us know that you need to be invoiced for shipping. We will provide shipping estimates according to the real lengths and dimensions of the package. You can select the estimate that meets your shipping budget and we will invoice you the shipping amount and send the order.

    Click the link to respond:
    Hi I built a 2x4 cnc machine in 2013 using you Hardware kit and plans. I want to speed up my cnc machine by purchasing your acme leadscrew 1/2"-10 5 starts. I have an X axis at 52", a Y axis at 32" and a Z axis at 14". How do I order all 3 length pre cut to size on your website? Also can you give me a rough estimate on the shipping to Ottawa, Ontario Canada please.

  • I have a lead screw machine I built from the book plans (i know, ancient history) and I'm thinking of converting the X and Y axis to rollerchain. Assuming I can configure my controller appropriately, is there anything I should buy besides chain, drive cog, tension cog and mounting hardware?

    You want to make sure that the motors will be able to provide the necessary torque since there will not be mechanical advantage using roller chain. You will need a way to fix the chain to each end. I like to use #4 - 3/4" screws and #4 nuts. You will need a drive sprocket for each axis and a couple idler sprockets on each axis to serve as tensioners and guiding the roller chain.

    Additional Information:
    OK cool. I have NEMA 24 steppers rated 425 oz-in. Is there some rule of thumb I can use to guess if that's enough? I'm not planning to push against hard stock material.

    Click the link to respond:
    I have a lead screw machine I built from the book plans (i know, ancient history) and I'm thinking of converting the X and Y axis to rollerchain. Assuming I can configure my controller appropriately, is there anything I should buy besides chain, drive cog, tension cog and mounting hardware?

  • 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

  • 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.
  • For the 1/2'' 5 start ACME leadscrew, what is the length purchased for the $2.00 order? and if you make 2 orders, are you getting two separate rods or 1 rod at twice the length. Thanks.

    We sell our ACME screws in total length (overall length you require), but if individual lengths are needed you can contact us via phone (281-815-7701) or email (customerservice@buildyourcnc.com).

    A $2.00 order will be a total of 1 inch, but if ordered separately then you will receive 2 of the same length.

    Click the link to respond:
    For the 1/2'' 5 start ACME leadscrew, what is the length purchased for the $2.00 order? and if you make 2 orders, are you getting two separate rods or 1 rod at twice the length. Thanks.

  • HI, I HAVE INTENTION OF PURCHASING YOUR 1/2 INCH PRECISION LEAD SCREW SET TO BUILD MY CNC MACHINE, COULD THE SCHEMATIC DIMENSION ANTI-BACKLASH NUT, BEARING FOR AND SHIM? ALSO IS 2.2KW SPINDLE ABLE MILL ALUMINUM WHAT ACCURACY?

    BYCNC response:

    Milling aluminum is no problem with our machines.

    Here is a video we recently did with our 4'x8' machine. The aluminum piece is about 1/4" thick: https://buildyourcnc.com/tutorials/tutorial-greenbull-aluminum-cutting

    The accuracy you will see from our our 2.2kW spindle is entirely dependent on the precision of your build, so it's not possible to say what level of accuracy you can achieve without an examination of the complete system. However, our spindles have a runout of less than .0001 in, which includes the collets that we sell. If you use a collet from another manufacturer, we cannot guarantee this TIR (Total Indicated Runout) dimension.

    For the dimension drawing of the anti-backlash nut, please contact us directly by phone or email to techsupport@buildyourcnc.com

    User response:
    I have emailed waiting for your reply.

    User response:
    Hi, I am still waiting for your email reply.

    BYCNC response:
    Your email has been sent.

    Click the link to respond:
    HI, I HAVE INTENTION OF PURCHASING YOUR 1/2 INCH PRECISION LEAD SCREW SET TO BUILD MY CNC MACHINE, COULD THE SCHEMATIC DIMENSION ANTI-BACKLASH NUT, BEARING FOR AND SHIM? ALSO IS 2.2KW SPINDLE ABLE MILL ALUMINUM WHAT ACCURACY?

  • HI, I HAVE INTENTION OF PURCHASING YOUR 1/2 INCH PRECISION LEAD SCREW SET TO BUILD MY CNC MACHINE, COULD THE SCHEMATIC DIMENSION ANTI-BACKLASH NUT, BEARING FOR AND SHIM? ALSO IS 2.2KW SPINDLE ABLE MILL ALUMINUM WHAT ACCURACY?

    BYCNC response:

    Milling aluminum is no problem with our machines.

    Here is a video we recently did with our 4'x8' machine. The aluminum piece is about 1/4" thick: https://buildyourcnc.com/tutorials/tutorial-greenbull-aluminum-cutting

    The accuracy you will see from our our 2.2kW spindle is entirely dependent on the precision of your build, so it's not possible to say what level of accuracy you can achieve without an examination of the complete system. However, our spindles have a runout of less than .0001 in, which includes the collets that we sell. If you use a collet from another manufacturer, we cannot guarantee this TIR (Total Indicated Runout) dimension.

    For the dimension drawing of the anti-backlash nut, please contact us directly by phone or email to techsupport@buildyourcnc.com

    User response:
    I have emailed waiting for your reply.

    User response:
    Hi, I am still waiting for your email reply.

    BYCNC response:
    Your email has been sent.

    Click the link to respond:
    HI, I HAVE INTENTION OF PURCHASING YOUR 1/2 INCH PRECISION LEAD SCREW SET TO BUILD MY CNC MACHINE, COULD THE SCHEMATIC DIMENSION ANTI-BACKLASH NUT, BEARING FOR AND SHIM? ALSO IS 2.2KW SPINDLE ABLE MILL ALUMINUM WHAT ACCURACY?

  • Regarding 1/2" 5 start and 10 TPI ACME precision lead screw, what the maximum length you can ship within USA? I'm looking for something like 100" and I could use a 1" screw if available. Please include estimated price. Thanks.

    The maximum length we can ship is a total of 78" inches. However we can send your required length in portions. Please refer to adding the total items you require to your cart to get a visualized amount and shipping cost.

    Click the link to respond:
    Regarding 1/2" 5 start and 10 TPI ACME precision lead screw, what the maximum length you can ship within USA? I'm looking for something like 100" and I could use a 1" screw if available. Please include estimated price. Thanks.

  • My question about motor tuning for the blacktoe in Mach 3 was for the aceleration and velocity settings what are the recomended settings

    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:
    My question about motor tuning for the blacktoe in Mach 3 was for the aceleration and velocity settings what are the recomended settings

  • 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 have the 2.2KW VFD. I would like to have it controlled through software. What are the Mode parameters that need to be changed that will allow FWD/ REV, START/STOP and RPM control?

    What controller are you using to control the cnc machine (Mach3 usb, parallel breakout board, etc.)?

    The spindle VFD has an input for 0-10 volts to control the speed and can be used with the MAch3 USB or the Pokeys57CNC board. There are also other terminals in the VFD to control the forwared/reverse and start and stop. Mach3 has parameters to control these output and you need to specify which pins are used for these.

    You can also use the TX/RX RS-485 connection on the VFD to have total control using an FTDI USB to serial connector board to connect the computer directly to the VFD.

    How to connect the USB to Serial adapter to the VFD:
    https://www.buildyourcnc.com/FAQ/13790

    FTDI USB to Serial:
    https://www.buildyourcnc.com/item/Interfaces-newbiehack-Interfaces-TTL232R-USB-UART-Serial

    Pokeys57CNC board:
    https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach4-mach3-USB-ethernet-Board

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

    Parallel Breakout board:
    https://www.buildyourcnc.com/item/electronicsAndMotors-parallel-breakout-relay



    Additional Information:
    I do apologize for leaving out the parts list.
    Leadshine MX4660 4-Axis Digital Stepper Motor Driver
    Ethernet SmoothStepper
    YL600-2S-2K20 VFD
    4 Relay control board
    Has anyone had any success getting Mach3 to control the spindle speed and direction?

    Click the link to respond:
    I have the 2.2KW VFD. I would like to have it controlled through software. What are the Mode parameters that need to be changed that will allow FWD/ REV, START/STOP and RPM control?

  • I just wanted to know what I can expect to pay to build the blackFoot 4'x8' CNC machine, excluding computer, software and router? Is the kit complete or do I have to purchase additional items to finish?

    You will need to build the table unit for your machine. There are instructions on how to do this at the bottom of the product page here, https://www.buildyourcnc.com/Item/cnc-machine-blackFoot-v4
    There is no estimate on how much this will cost though, since there are too many variables involved to do this.

    - PC with parallel port and USB port
    - 20awg stranded wires for the motors - http://www.buildyourcnc.com/electronicscombo.aspx
    - 18awg stranded wires for power supply to drivers
    - 24awg stranded wires for breakout board to drivers
    (location and spacing of components varies from one person to another, so we do not provide cables/wires)
    - General purpose extension cord (cut the female end off) to provide power to power supply
    - USB cable to power breakout board
    - Parallel cable to communicate to breakout board
    - Router
    - (optional - instead of router) Spindle with power inverter http://www.buildyourcnc.com/SpindlesAndAccessories.aspx
    - (if purchasing spindle with inverter) General purpose extension cord (240v) (cut the female end off) to provide power to power inverter
    - End Mill(s) http://www.buildyourcnc.com/ProductsEndMills.aspx
    - CAD, and/or CAD-CAM software (to produce geometry, machine operations, and g-code) http://www.buildyourcnc.com/CNCsoftware.aspx
    - CNC control software (to read g-code and control machine) http://www.buildyourcnc.com/CNCsoftware.aspx

    This answer is applicable to most of our machines with the exception of the greenLean and the blueChick since those machines are equipped with a table structure.

    Click the link to respond:
    I just wanted to know what I can expect to pay to build the blackFoot 4'x8' CNC machine, excluding computer, software and router? Is the kit complete or do I have to purchase additional items to finish?

  • If I buy the 1/2" 5 start lead screw and the 3/8" 5 start lead screws will it all work together

    If the turns per inch on a lead screw is different, then the nut on the lead screw will move at a different velocity.

    Additional Information:
    Let me explain in more detail.

    Let's say you have two lead screws:

    - 1/2" 5 starts at 10 TPI = 2 turns per inch. (5 starts / 10 TPI = 1/2 inches per turn or 10 TPI / 5 Starts = 2 turns per inch.)

    - 3/8" 2 starts at 10 TPI = 5 turns per inch. (2 starts / 10 TPI = 1/5 inches per turn or 10 TPI / 2 starts = 5 turns per inch.)


    So, if two stepper motors (one connected to the 1/2" lead screw and the other connected to the 3/8" lead screw) turned 10 revolutions in 2 seconds, the 1/2" lead nut would travel 5 inches and the 3/8" lead nut would travel 2 inches at the 2 second mark.

    Click the link to respond:
    If I buy the 1/2" 5 start lead screw and the 3/8" 5 start lead screws will it all work together

  • 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?

  • 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 am building your "Green Bull' 6 foot wide kit and I am at the stage of attaching the motor and drive chain. I would like to know if you have an modification kit available to put the 1/2" ACME screw on the Y-axis?

    Currently we do not have that modification kit, our set up is fixed for our greenBull only modification kit we have for this model is the long z-axis kit(Designed for Foam cutting).

    Click the link to respond:
    I am building your "Green Bull' 6 foot wide kit and I am at the stage of attaching the motor and drive chain. I would like to know if you have an modification kit available to put the 1/2" ACME screw on the Y-axis?

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