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Question #: 561

Question: IS DRILL BIT USED IN THE CNC MACHINE?

Current Solution

The cutting tool is an end mill (it looks like a drill bit). It is a cutting tool that can plunge and cut sideways. That item is not included and is a consumable. You will purchase these very frequently and will have geometry that is very specific to how you apply the cnc machine.

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Other Possible Solutions to this Question

  • HOW MUCH MDF IS USED FOR THE BOOK MACHINE COMBO #1

    Three 24" x 48" sheets of mdf is used for the book build or the combo #1 plans and kit.

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    HOW MUCH MDF IS USED FOR THE BOOK MACHINE COMBO #1

  • Can a CO2 CNC laser machine be used for welding of thermoplastic materials?

    That is a good question. We have not tried to weld thermoplastics using our CO2 Lasers. It is possible since the laser outputs a heat source and at the right intensity and speed, the thermoplastic can be heated and melted rather than instantaneously vaporized and off gassed. I have done research to see if CO2 laser can weld thermoplastics with positive results.

    Our CO2 lasers are typical of other laser cutters on the market, so if their literature, or examples you have found, successfully weld thermoplastics, then ours will probably be able to as well.

    In some cutting test with different speeds and intensities, the kerf has welded back together; however, this was caused by an unintentional process rather than an intentional one.

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    Can a CO2 CNC laser machine be used for welding of thermoplastic materials?

  • What size motor is powering the y axis on the greenLean CNC machine?

    For our greenLean CNC vertical machine, was built and controlled using 2 651-oz in motors/425 oz-in motor.
    The 651-oz motors runs both the x/y axis, as our 425-oz motor controls the z axis.

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    What size motor is powering the y axis on the greenLean CNC machine?

  • Is there any way i can order replacement wooden parts for a cnc machine

    Yes, you can order replacement wooden parts, but since we don't have them as products on the website, you will need to call us directly using the number at the top right corner of the website by hovering over "need help?"

    Click the link to respond:
    Is there any way i can order replacement wooden parts for a cnc machine

  • What cnc machine does the plans refer to?

    The plans refer to the scratch build machine: http://www.buildyourcnc.com/cnckitintro.aspx and the one in the book "Build Your Own CNC Machine": http://www.buildyourcnc.com/Book.aspx

    Click the link to respond:
    What cnc machine does the plans refer to?

  • Are the CNC machines covered by warranty?

    Customers have 30 calendar days from the date of delivery to return the item(s) for a full refund. The returned items must not have been used or powered in any way. The item(s) must be in its original unused condition. Send the unused item(s) to: BuildYourCNC, 20734 Settlers Lake Cir N., Katy, TX 77449 and include a letter explaining the reason you need to return the item. The original shipping is non-refundable. There is a 10% restocking fee for returned items.

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    Are the CNC machines covered by warranty?

  • What precision do the CNC machine have, for instance the 12’’ x 36’’ x 3’’?

    Our machine that matches those dimensions, the blueChick, uses roller chain for both X and Y axes, and a 1/2" 5 start 10 TPI lead screw for the Z axis. The precision is generally related to repeatability and we have not does extensive measurement of these tolerances. The resolution is set at better than 1000 steps per inch.

    Here is the link for the blueChick:
    https://www.buildyourcnc.com/blueChickVersion42CNCMachineKit.aspx

    Click the link to respond:
    What precision do the CNC machine have, for instance the 12’’ x 36’’ x 3’’?

  • what if i want the cnc machine assembled ?

    We do not sell pre-assembled machines. The shipping on a fully assembled machine would be huge.

    Additional Information:
    Please call me at 818-823-4830...have a couple questions about my orders. Thanks!

    Additional Information:
    Pre assembled...??? ...no, please call me at 8188234830

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    what if i want the cnc machine assembled ?

  • I Was wondering if the green bull cnc machine is able to cut cured composites

    You will not have a problem cutting cured composites using any of our machines. The greenBull short Z has a very rigid gantry and Z-axis assembly and can cut with better performance.

    You will need to make sure you are using the appropriate end mill for the materials within the composites. Additionally, the variables you will need to consider if the composites are thermoset or thermoplastic and the feedrate and depth per pass will need to be adjusted to make sure that the heat is is not built-up at the end mill causing the composite material to exhibit undesirable results.

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    I Was wondering if the green bull cnc machine is able to cut cured composites

  • Which electronics package is required for the CNC machine from the book designs?

    The book design uses all NEMA 23/24 motors which can be found here:
    https://buildyourcnc.com/item/electronicsAndMotors-3axis-425-elcombo

    I recommend the Mach3 USB option as you will be able to use the USB connection for control.

    If you are planning to build from the plans developed by the folks over at Woodsmith Magazine which is loosely based on the book design, use this electronics package:
    https://buildyourcnc.com/item/electronicsAndMotors-3axis-heavy-gantry-elcombo

    Click the link to respond:
    Which electronics package is required for the CNC machine from the book designs?

  • HOW DO ADDRESS THE DANGER OF THESE CNC MACHINES

    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.

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    HOW DO ADDRESS THE DANGER OF THESE CNC MACHINES

  • What is the best way to determine speeds and feeds for machine and bit longevity?

    The speeds and feeds are generally based on the amount of flutes that are being used per pass and how hot the end mill is getting when milling.  You want to use as much of the flutes as possible on single cuts.  Make the deepest cuts you can to increase the life of the tool.  For instance, if a tool that is 1 inch in cut length and the depth per pass is 1/4", then only that 1/4" is being used for the cutting.  The 1/4" tip of that tool will wear faster.  
    Make sure the feedrate is as fast as possible without a cost to the edge finish.  This will keep the end mill cool since there will be minimal friction as you are always cutting into fresh cooler material.  
    Use the end mill manufacturer's chip load for the tool to determine the starting feed rate.

    Feedrate (IPM - Inches/Min) = Spindle RPM x # of Flutes x Chip Load
    See each end mill for the chip load value.

    If your machine cannot achieve these feed rates, reduce the spindle RPM using this formula:
    Speed (RPM) = Feed Rate (IPM) / (# of Flutes x Chip Load)

    Click the link to respond:
    What is the best way to determine speeds and feeds for machine and bit longevity?

  • Do you offer plans for the blackToe CNC Machine?

    The blackToe machine is offered as a kit only. We do have a machine that is build form plans. The plans refer to the scratch build machine: http://www.buildyourcnc.com/cnckitintro.aspx and the one in the book "Build Your Own CNC Machine": http://www.buildyourcnc.com/Book.aspx

    Additional Information:
    20

    Click the link to respond:
    Do you offer plans for the blackToe CNC Machine?

  • Where is the link for the expansion kit for the CNC Routing Machine Kit Version 1.3?

    You can use the board5.nc as the expansion parts.

    Additional Information:
    20

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    Where is the link for the expansion kit for the CNC Routing Machine Kit Version 1.3?

  • What is your shipping costs for the greenLean CNC machine to Perth Western Australia

    You can determine if the country 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.

    The shipping times are determined by the service you select in the shopping cart. If a machine is purchased, we generally have a one week lead time unless otherwise stated in the description of the machine's product page.

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    What is your shipping costs for the greenLean CNC machine to Perth Western Australia

  • What is the Max thickness of wood that can be placed in the 4x8 cnc milling machine?

    Tricky question. That depends on the way the table is built. If the table is built with a step down area, you can put as thick a material as you want. If the table is flat, the clearance is 6 inches. Now, the thickness depends on the size end mill you insert into the collet. If you use an end mill that has a 2 inch cutting length, then your material thickness is 4 inches without a spoilboard. If you need to mill thick material, I would suggest that you fashion the table accordingly so the table can accomodate any thickness you desire. That's one of the great aspects of the buildyourcnc machines, adaptability.

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    What is the Max thickness of wood that can be placed in the 4x8 cnc milling machine?

  • can the greenBull Kit CNC machine cut HDPE Seaboard?

    The greenBull can cut HDPE Seaboard, and other materials as well. The machine will be cutting with either a router/spindle(customer preference) and will be the greatest aspect of actual cutting of material, to get a good overall coverage of materials. Our 2.2kW spindle will be the best option for a large variety of materials.

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    can the greenBull Kit CNC machine cut HDPE Seaboard?

  • SHOULD I SELECT THE GREENBULL OR BLACKFOOT CNC MACHINE?

    The greenBull can range is routing width sizes of 5 feet and 6 feet. The blackFoot has a 4 foot routing width.

    Previous Solution:
    The greenBull machine has a sturdier gantry than the blackFoot, so you can be more agressive with the cutting feedrate (cutting speed). The blackFoot is also a good machine, but it all comes down to the speed at which you want to produce the fabrication

    The spindle is also highly recommended for it's quietness and easier cleanup (no fan blowing the dust in the air)

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    SHOULD I SELECT THE GREENBULL OR BLACKFOOT CNC MACHINE?

  • is IT OK TO USE THICKER PLYWOOD (MATERIAL) to BUILD THE CNC MACHINE, BLACKFOOT, BLACKTOE?

    Yes, it is ok if the thickness is plus or minus +/- about 2mm.

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    is IT OK TO USE THICKER PLYWOOD (MATERIAL) to BUILD THE CNC MACHINE, BLACKFOOT, BLACKTOE?