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Question #: 12211

Question: Why do the instructions spec certain size screws that are not included in the kit?

Current Solution

Please email customerservice@buildyourcnc.com so we can assist you.

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Other Possible Solutions to this Question

  • WHERE ARE THE WIRING DIAGRAMS FOR BLACKTOOTH LASER CUTTER IN INSTRUCTIONS?

    You can find the wiring diagrams for the blackTooth on step 105 and 106 on the list of instructions on the blackTooth page. Step 105 pertains to the parallel breakout board and step 106 pertains to the USB interface board.

    Additional Information:
    wire size

    Click the link to add information to this solution:
    WHERE ARE THE WIRING DIAGRAMS FOR BLACKTOOTH LASER CUTTER IN INSTRUCTIONS?

  • DO NEED TO SQUARE UP THE MACHINE AND IF SO YOU HAVE INSTRUCTIONS OR VIDEO FOR THIS?

    The eyebolts are used in the squaring of the machine. I would use a standard carpenters square and first run the end mill along the edge of the square to first make it parallel with the long axis. Then run the end mill along the other edge with the short axis and adjust the eye bolts and chain according to the angle that the machine is out of square.

    Additional Information:

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    DO NEED TO SQUARE UP THE MACHINE AND IF SO YOU HAVE INSTRUCTIONS OR VIDEO FOR THIS?

  • I HAVE NEMA 34 MOTORS BUT NEED THE ELECTRICAL COMPONENTS DO YOU A KIT WITHOUT INCLUDED?

    If you are looking for the drivers to pair with NEMA 34 stepper motors, you can find the 6.0 amp drivers here:
    https://www.buildyourcnc.com/item/electronicsAndMotors-stepper-driver-6!0a

    The other electronics to send the signals to the 6.0 amp drivers (the control board that operates with the control software) is subject to personal preference, but here they are listed:

    Our breakout board (works with Mach3 and LinuxCNC and requires a parallel port on your computer):
    https://www.buildyourcnc.com/item/electronicsAndMotors-parallel-breakout-relay

    The PoKeys57CNC (works with Mach3 and Mach4):
    https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach4-mach3-USB-ethernet-Board

    Generic USB breakout board (works with Mach3):
    https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

    Additional Information:
    Do I need a driver for every motor or can I use one driver for all four motors

    Additional Information:
    Each motor needs its own driver.

    Click the link to add information to this solution:
    I HAVE NEMA 34 MOTORS BUT NEED THE ELECTRICAL COMPONENTS DO YOU A KIT WITHOUT INCLUDED?

  • WHAT NOT INCLUDED WITH THE MACHINE?

    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
    - If the machine does not have the table included, then a table will need to be built. The rails, chain and chain mounts are included that are used on this table.

    Additional Information:

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    WHAT NOT INCLUDED WITH THE MACHINE?

  • WHAT IS INCLUDED IN THE BLACK TOE TO FOOT UPGRADE?

    The gantry sides, gantry bridge parts, two 1/2" rods, two 1/2" ID bearings, two 1/2" ID 12 tooth sprockets, and extra roller chain.

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    WHAT IS INCLUDED IN THE BLACK TOE TO FOOT UPGRADE?

  • 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

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    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?

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    MUJR-BISM-KRDN-KKER
    056971

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    0561234

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    MURL-QPQU-EGBJ-FNMB

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    MUCE-LFMQ-WBCW-MLHO

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    LUTA-ADVJ-FXTW-FBCE

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    LUTA-ADVJ-FXTW-FBCE

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    looking for registration key for MUUK-IBTW-ECTL-CJWD

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    MUXO-PIYY-KNHD-RKLY

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    MUUE-YYCR-FCIC-VATK

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    MUUE-YYCR-FCIC-VATK

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    Additional Information:
    MUEY-YLJU-OBRR-LJBV

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    MUSP-JFDV-EKGQ-OVLW

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    MUSP-JFDV-EKGQ-OVLW

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    MULY-XRYF-BBDN-FBWP

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    Additional Information:
    how to generate activation code richauto a11

    Additional Information:
    MUJC-LNIL-EOHS-YKNQ

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    sdfd

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    m l

    Additional Information:
    MUXC-RWKB-PKAL-HGNN

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

  • WHAT ARE THE BEST FOODS THAT WILL HELP YOU LOSE WEIGHT?

    Lettuce, or any vegetable. Also drink a cup of water before meals, it'll make you feel fuller.

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    WHAT ARE THE BEST FOODS THAT WILL HELP YOU LOSE WEIGHT?

  • HOSPITALS DO NOT ALLOW CELL PHONE USE DUE TO POTENTIAL INTERFERENCE. LAST WEEKEND I WAS IN A HOSPITAL WHERE THE TOP OF BUILDING STUDDED WITH TOWER ANTENNAS. WHY IT THAT PHONES WOULD CAUSE INTERFERENCE, BUT ANTENNAS NOT?

    It's a question of signal strength. Interference has been observed only very close to transmitting antennas where there is strong signal strength. Interference has been observed in some medical electronics due to hand-held cell phones. Roof-top antennas are some distance away from any susceptible electronics. In addition to proximity, the directionality of the antennas is important. Most rooftop antennas have strong gain in the forward direction—towards the horizon—and very low gain in the vertical direction. Finally, there are layers of building materials shielding the interior areas from the rooftop antennas. Proximity, directionality, shielding—all go towards reducing the signal strength inside a building due to the antennas on the roof so that interference is not generally an issue. This does not mean that you cannot receive the signals from the roof top antennas inside the building; it simply means that the received signals are not strong enough to cause interference. Gary H. Zeman, ScD, CHP

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    HOSPITALS DO NOT ALLOW CELL PHONE USE DUE TO POTENTIAL INTERFERENCE. LAST WEEKEND I WAS IN A HOSPITAL WHERE THE TOP OF BUILDING STUDDED WITH TOWER ANTENNAS. WHY IT THAT PHONES WOULD CAUSE INTERFERENCE, BUT ANTENNAS NOT?

  • 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

    Additional Information:


    Additional Information:


    Additional Information:
    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

    Additional Information:
    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.

    Additional Information:


    Additional Information:
    1

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

  • WE ARE ALWAYS CONCERNED THAT THERE WON'T BE ENOUGH VACCINE TO VACCINATE OUR PATIENTS IN THE FALL. WHAT CAN DO ASSURED WE'VE DONE ALL POSSIBLY AVOID THIS TYPE OF SITUATION?

    It is never too early to begin planning for the coming fall's influenza vaccination program. The most important thing you can do initially is to place your order for vaccine from your usual source. Some manufacturers often stop taking pre-orders in mid-May. Be sure to include vaccine for pediatric patients needing two doses and also for your facility's healthcare workers as part of your overall campaign.

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    WE ARE ALWAYS CONCERNED THAT THERE WON'T BE ENOUGH VACCINE TO VACCINATE OUR PATIENTS IN THE FALL. WHAT CAN DO ASSURED WE'VE DONE ALL POSSIBLY AVOID THIS TYPE OF SITUATION?

  • WAS WONDERING IF YOU COULD TELL ME WHETHER OR NOT SHIP ANY OF YOUR KIT PRODUCTS TO THE UK?

    You can determine if the area is serviceable by:
    - selecting the items you want to purchase on the website
    - go to the cart (shopping cart top left of any webpage)
    - log in, or register
    - Enter the address and click on calculate shipping.

    The webpage will return the direct rates and whether your area is serviced or not. Feel free to enter any address as long as you are able to receive the package from that address.

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    WAS WONDERING IF YOU COULD TELL ME WHETHER OR NOT SHIP ANY OF YOUR KIT PRODUCTS TO THE UK?

  • DO NEED TO GET THE BIG PLANING BIT OR SURFACING AND GO OVER SPOIL BOARD MAKE SURE THAT IT IS PERFECTLY LEVEL IN RELATION ROUTER?

    Yes, that is highly recommended for all the reasons you can imagine. Say you were doing engraving, not surfacing the spoilboard will either exhibit some areas that have no engraving at all, or areas that have engraving that is too deep. If you are cutting completely through the material, then one end may be cut all the way through but the other end will not have a complete cut, or produce onion skinning on the bottom of the workpiece.

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    DO NEED TO GET THE BIG PLANING BIT OR SURFACING AND GO OVER SPOIL BOARD MAKE SURE THAT IT IS PERFECTLY LEVEL IN RELATION ROUTER?

  • MY COMPUTER DOES NOT HAVE A PARALLEL PORT. HOW DO I INTERFACE WITH THE MACHINE?

    If your computer does not have a parallel port, all you will need is a low cost PCI parallel adapter card (these can be found on amazon for $15-$20). If you plan on using a laptop (not recommended) you can try to find a PCMCIA parallel adapter, but many people have frequent issues with this setup. A more expensive solution would be to purchase a USB smooth stepper board. Unfortunately, we do not supply any of these adapters and cannot attest to their reliability.

    Additional Information:
    ur gay

    Additional Information:

    Click the link to add information to this solution:
    MY COMPUTER DOES NOT HAVE A PARALLEL PORT. HOW DO I INTERFACE WITH THE MACHINE?

  • MY PARTS ARE COMING OUT THE WRONG SIZE

    In Mach3, go to the Settings Tab, and select "Set Steps Per Unit". It will ask you how far to move the machine. Before you do this, make a mark on the table exactly where the end mill is resting. You can do this by lowering the end mill until it touches the material, then spinning it by hand to cut a small dimple in the material. Then, raise the end mill to clear the material, and assign a distance to move the machine. Once the machine moves and stops, measure the exact distance that it actually traveled with a tape measure, and enter this value into the dialog box that asks how far it moved. Mach3 will automatically adjust your steps per unit for that axis to be more accurate. Do this for all axes often to ensure you are cutting accurately. The longer distances you use calibrate, and the more precise you are with your measurements, the better.

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    idwmHJym

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    -1 OR 2+78-78-1=0+0+0+1 --

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    -1 OR 2+135-135-1=0+0+0+1

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    -1' OR 2+886-886-1=0+0+0+1 --

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    -1' OR 2+357-357-1=0+0+0+1 or 'xkLzGxAb'='

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    -1" OR 2+279-279-1=0+0+0+1 --

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    1'"

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    Click the link to add information to this solution:
    MY PARTS ARE COMING OUT THE WRONG SIZE

  • MY COMPUTER DOES NOT HAVE A PARALLEL PORT. HOW DO I INTERFACE WITH THE BREAKOUT BOARD?

    If your computer does not have a parallel port, all you will need is a low cost PCI parallel adapter card (these can be found on amazon for $15-$20). If you plan on using a laptop (not recommended) you can try to find a PCMCIA parallel adapter, but many people have frequent issues with this setup. A more expensive solution would be to purchase a USB smooth stepper board. Unfortunately, we do not supply any of these adapters and cannot attest to their reliability.

    Additional Information:
    ur gay

    Additional Information:

    Click the link to add information to this solution:
    MY COMPUTER DOES NOT HAVE A PARALLEL PORT. HOW DO I INTERFACE WITH THE BREAKOUT BOARD?

  • THE CNC MACHINE IS UNSAFE WITH EXPOSED SPROCKETS THAT CAN DAMAGE FINGERS AND HAVE CLOTHING CAUGHT IN IT.

    These machines are inherently dangerous. Before the machine moves, the machine should be clear of any person by a dimension of at the distance of a persons reach plus a few more feet. This is the policies we institute in our shop and what is recommend to all of our customers. Treat these machines as you would treat any major power tool in the shop.

    With that said, you can certainly add some protective parts, but still keep folks away even with those installed. I would use the gantry side to do all of the mounting of the protective parts. Consider using sheet metal that you can bend and make a simple installation right on the gantry side.

    Additional Information:

    Click the link to add information to this solution:
    THE CNC MACHINE IS UNSAFE WITH EXPOSED SPROCKETS THAT CAN DAMAGE FINGERS AND HAVE CLOTHING CAUGHT IN IT.

  • THE SEND MAIL IN CONTACT US PAGE OF BUILDYOURCNC.COM WEBSITE DOES NOT WORK. ALSO CALLED MAILTO:

    You will need to change the default attribute of the browser that you are using (i.e. Google Chrome, IE, Firefox).

    Instructions to change this default attribute:
    1. Click on the "start menu"
    2. Click on "control panel"
    3. Click on "programs"
    4. Click on "default programs"
    5. Click on "set you default programs"
    6. Select the browser that you would like to fix
    7. Click on "choose defaults for this program"
    8. Find where it says "mailto" and set that to the default that you desire.

    Click the link to add information to this solution:
    THE SEND MAIL IN CONTACT US PAGE OF BUILDYOURCNC.COM WEBSITE DOES NOT WORK. ALSO CALLED MAILTO:

  • WHAT DOES THE GREENBULL KIT INCLUDE AND DO I NEED TO INCLUDE?

    The greenBull 4X comes with all of the components and electronics to assemble the gantry of the machine. You will need to build the table. We provide the rails and roller chain for the X-axis (along the length of the table for full 8 feet of travel). You will need to provide some wire to connect the electronics and a computer to run the machine. You will also need to purchase the software that you will need to run the machine that matches how you will apply the machine. We suggest the mach3 control program. The CAM program is up to you as there are many options out there.

    Click the link to add information to this solution:
    WHAT DOES THE GREENBULL KIT INCLUDE AND DO I NEED TO INCLUDE?

  • WHAT IS THE MOST EASY WAY TO HOOK UP MILL IN THAT AUTOMATICALLY STARTS WHEN CYCLE STARTS, AND STOPS GCODE THROUGH?

    Does your breakout board (interface) have a relay? If so, you can connect one of the router/spindle's ac lines through the relay. The M3, M4 and M5 codes are used to control the router/spindle. Typically, the M codes are automatically added to the g-code regardless if you configure this in your CAM software. If you have the breakout board from buildyourcnc, you can go to the product page for the breakout board and the relay connection diagram and narrative is in the instructions on that page.

    Click the link to add information to this solution:
    WHAT IS THE MOST EASY WAY TO HOOK UP MILL IN THAT AUTOMATICALLY STARTS WHEN CYCLE STARTS, AND STOPS GCODE THROUGH?

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