Actual table dimension: 4'x8' is 56.078"x 121.50" (the overhang in the illustrations should be 3/4" thick)
To determine the frame dimensions, first consider using the frame height shown of almost 3' (2.86'). The width of the frame should be 4" narrower than the dimension from rail edge to rail edge (6X rail to rail is 80.078"). This will provide a 2" overhang on both sides (4X frame width should be 56.078").
The length of the frame should be 4" shorter than the desired length of the rails to provide a 2" overhang on both ends. The travel length will be 20" shorter than the rail length due to the space occupied by the gantry sides.
Two long pieces of 3/4" material will need to be placed on top of the frame with the 2" overhang on the sides and the end. These long strips of material will receive the rails and the chain mounts on the ends.


Link:
https://www.buildyourcnc.com/Item/cnc-machine-greenBull-v4-4X

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What are the table dimensions for the greenBull so I can build it.

The plans for the whiteAnt 3D Printer will have the dimesions, and the dimensions will be on the individual pieces(cut to spec). The machine is relatively small, so maybe you expected the size(dimensions) to be larger.

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The plans available for download for the "whiteAnt 3D Plastic Printer" do not have dimensions. Are the dimensions shown in the book? Is there a DWG file available?

That is correct. We send the fewer ribs than could be fastened within the gantry. One reduction of a rib will provide more space for the motor at the midpoint of the gantry and at the other side of the gantry (opposite the motor) can be reduced to provide more space to work with the coupling.

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I'm assembling the gantry for a 5x10 greenbull and noticed that there are 9 spaces for torsion spacers but only 7 in the kit. Should I just space them out on the right side behind the motor?

There are a number of opportunistic gadgets on the market to allegedly protect the user from hazards of cellular phones. You can search the Internet to find the latest, ranging from antenna shields to whole-body shielding materials. Most experts believe that these devices take advantage of customers' misunderstanding and unfounded fears to sell products with no real value. First of all, cell phones that operate within the guidelines established by national and international safety panels have never been shown to pose a health risk to the user (see answers to other questions on cell phone safety on this website). Secondly, placing any kind of shield over the antenna of a cell phone will in most cases cause it to increase its RF output as it attempts to compensate for signal loss in the shield and maintain a quality phone call. The U.S. Food and Drug Administration published an advisory on cell phones several years ago that said if you are concerned about risks of using a cell phone, then simply use it less. That is still good advice today. Gary Zeman, ScD, CHP Lawrence Berkeley National Laboratory

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ARE THERE PRODUCTS AVAILABLE TO THE GENERAL PUBLIC THAT CAN BE PURCHASED PROTECT CELLULAR OR PORTABLE TELEPHONE USERS FROM RADIATION? IF SO, WHERE THESE FOUND?

There is a multitude of methods to create the table and frame for the greenBull long-z CNC machine, as some of the illustrations are shown on our gB webpage.

The image with the hollow mid section, is a custom table that will take advantage of the entire long-z axis assembly. So the frame can be built in that manner, however the CNC table should have its 3/4" table top. So you can cut standard sheets of wood, aluminum, plastics, etc.

So that specific illustration is not needed, however if you plan on cutting at that depth then it will defiantly benefit you to have that frame as shown in the illustration!

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Can you please clarify what a long Z axis table should look like? I've built a frame that matches the dimensions on the GreenBull page but under long Z it says a custom frame is required made out of steel, which I did. But do I need to have the frame open like shown in the picture or is that just showing what the table looks like under the 3/4 material?

There is another image on the spindle page here that shows another type of wiring using the R, T and E terminals for power. The image is one of the clickable main images on that page:

https://www.buildyourcnc.com/item/spindle-inverter-2!2kw-spindle-novfd

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Here is a link to the image directly:

https://www.buildyourcnc.com/images/SpindleWiring-800.JPG

And here is the link to the alternate diagram:

https://www.buildyourcnc.com/images/NewSpindleDiagram-800.JPG

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I purchased the greenbull with the electronics assembled, where are the wiring schematics to wire to 110 volt inverter?

If you want speed control, it is recommended to use the RS-485 connection on the VFD and use the control program such as Mach3 to communication serially with the VFD using this RS-485 connection.

If you would rather use a controller such as the PMDX-107 to simulate the effect of a potentiometer using the Aref, Aout and Agnd and the Rev/Dir and Fwd/Run terminals to control operation and direction, you can connect those to the VFD.

PMDX-107 Aout connects to the VI (analog voltage in). This is like the wiper on a potentiometer.
PMDX-107 Agnd connects to the ACM terminal on the VFD for Analog common.
PMDX-107 COM connects to DCM terminal on the VFD for Digital common.
PMDX-107 Fwd/Run connects to the FOR terminal on the VFD for Forward.
PMDX-107 Rev/Dir connects to the REV terminal on the VFD for Reverse.

Refer to your PMDX-107 manual to correctly configure your dip switch settings and make sure to calibrate (tweak) the speed control using the trimmer next to the terminals on the PMDX-107.

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I purchased the 4.0kw spindle and VFD a while back, and have just installed a PMDX-107 controller... do you have any examples of the wiring connections for the SL-240EE to PMDX-107?

Are you looking for replacement motors?

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I have a 4' X 8' table with carriages that use nema 23 motors. I have a hypertherm 45 plasma cutter. I have 20 degree 20 pitch rack gear. Can you suggest a plug and run system that I can use for cnc plasma and cnc routing?

To assemble the blueChick v4.2, you will need two sets of instructions, the assembly instructions for the main body and mechanicals of the CNC machine, and the instructions to connect and test all of the electronics.

The assembly instructions are located at this URL towards the bottom of the page (click on each picture to get a larger view):

https://www.buildyourcnc.com/blueChickVersion42CNCMachineKit.aspx

The instructions to connect and test the electronics can be found at this URL:

https://www.buildyourcnc.com/CNCElectronicsandWiring.aspx

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I have a blueChick version 4.2 CNC Machine with no schematics for it is there anyway possibly i can get them so i can finish putting my cnc together

CAD drawings are not furnished with the purchase of a machine.

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I have a greenbull 5x Long Z. I thought I read that I would get the CAD files to the machine when I purchased it? I want to make a couple modifications. Thanks!

Absolutely, I can answer this type of question and anything other questions you may have with your new-to-you CNC router.

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[789] Can you help me with selecting a power supply ( and a few other components ) for the stepper motors that came with a homemade CNC Router I just purchased.

Identify the Control Signals: First, determine which control signals from the DB25 interface card are used for spindle speed control. Typically, these are PWM (Pulse Width Modulation) signals or analog voltage signals.

VFD Configuration: Your VFD should be configured to accept the type of control signal your DB25 card provides. This involves setting parameters in the VFD that correspond to the type of input signal it will receive for speed control.

Wiring: Connect the appropriate output pins from the DB25 card to the input terminals on the VFD. This usually involves connecting the PWM or analog output to the corresponding input on the VFD. Make sure to consult the manuals for both your VFD and interface card for specific wiring details.

UCCNC Settings: Configure UCCNC to output the correct type of signal (PWM or analog) that matches your VFD's configuration. This is done through the software's spindle setup section.

Test and Adjust: Run some tests to ensure that the spindle speed is being correctly controlled by UCCNC. You might need to tweak settings in either the VFD or UCCNC for optimal performance.

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HEY ! I HAVE PURCHASED A VFD WITH MATCHING SPINDLE 1.5KW AND CONTROL PROGRAM UCCNC. MY INTERFACE CARD IS DB25, THE QUESTION HOW DO CONNECT TO DB25 SO THAT CAN SPEED UCCNC? SINCERELY "CNC BEGINNERS"

This is a good video on how to do a vacuum table

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Do you have any videos or plans for how to make a strong table for a large CNC router? I saw the torsion box videos but would like some more guidance on how to build just a good table.

Depending on the type of motors and connection type, you could adapt your motors to work with our electronic packages, but you will receive additional motors since our kit is complete.

Now you will have to take into affect the actual motors you have and compare or get accurate replacements(Ex. our 425 oz motor(1/4" input shaft) will have to be same size or similar entry holes)

Your Controller board will be the major issue, due to its wiring and processing manner, you can view the connections for our breakout boards to compare with yours! (parallel: https://www.buildyourcnc.com/item/electronicsAndMotors-parallel-breakout-relay#prettyPhoto/2/)(USB: https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-USB-Controller-Breakout#prettyPhoto/2/)
Email(customerservice@buildyourcnc.com for further help)

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I am looking at one of your electronics packages as a replacement for my excisting electronics. I have a old table top CNC that has a bad electronics pack, but the motors, and the mill are in good shape. could your system be adapted to work in this case?

Yes, here is the URL for the parallel breakout board that we sell:

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

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can I purchase just the parallel controller board? I purchased the usb option 4 axis combo and would like to also try the system with my parallel port computer. Any help with this will be greatly appreciated; my goal is to implement mach4.

Come on over and we will assist you in any way you need.

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I purchased a Blackfoot 4ft X 8ft in 2015 I have yet to run it. Do y’all offer any classes that can help me?? I would very much like to have this machine running. Thank you in Dayton Tx

Yes, we can provide a laser attachment for the long Z version of the greenBull 4x, 5x and 6x. Please call us to get more information and pricing for the laser attachment.

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I have a greenbull 5x with the long Z. Is there a laser kit that I can get for that model?

The greenBull CNC machine kit can cut as thick as a material as you desire depending on the reach of the end mill that you provide the machine, if it is a straight vertical. The reason for this is that each pass is incremental (multiple passes at a certain depth per pass). For instance, if you need to cut a 2 inch thick piece of wood, you can make, say 3/4" passes until the target depth of 2 inches is met.

The depth per pass, feedrate and RPM will be determined by the material: wood, plastic, metal and will also be determined by the end mill that is used for that material. Selecting the appropriate end mill is very important. Feedrate and RPM is important to make sure the end mill is as cool as it can be during the cutting process.

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How thick can the Greenbull cut and what kind of material? Wood, plastic, steel? I was also wondering if there is one anywhere in Nevada, Idaho or Utah that I could possibly see in action. Thanks

You can find the datasheets to our motors be going to the the stepping motor category page https://www.buildyourcnc.com/category/nema and selecting the motor. This will bring you to the product page for the motor and all of the motor information will be found there.

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I would like to design my own CNC router around one of your electronics bundles, either the 3 Axis - Heavy Gantry or 3 Axis - All Large Motors. Do you have the data sheets for the motors so that I can use the dimensions in my model?