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.

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I am interested in buying the greenBull 5X Long Z CNC Machine Kit, but it is not clear for me what is included in this kit. Is there anything else I need to get the machine work?

Currently our greenBull can only accommodate a 40W laser tube due to the size and current mounts on the spindle/laser hybrid assembly!

However please contact 281-815-7701 for further assistance with the greenBull machine.

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I am interested in the GreenBull 4x8 CNC machine kit you have; I also wish to get the laser attachment but I was wondering if its possible to have the laser larger than a 40w, say in the 80-150w range?

The roller chain lengths for the greenBull 4x is:
- 13 feet for each side of the X axis (total of 26 feet), and
- 6 feet for the Y-axis

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WHAT LENGTHS OF ROLLER CHAIN DO I USE FOR THE GREENBULL 4X CNC?

We are able to work with many different options to provide solutions for our customers. Please send an email to customerservice@buildyourcnc.com for further assistance with this matter.

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Is it possible to integrate the shipping costs of 2 CNC machines paid separately, but same shipping address?

There is a wiring diagram in the instructions on the following page:
https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

In the instructions, you will find the wiring diagram and further instructions below that with greater detail on how to connect the various features of the Mach3 USB controller that is used in the Woodsmith article.

Note in the wiring diagram that COM- is the DCM terminal and COM+ is the 24V terminal.

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I built one of those and complained to Woodsmith about the wiring diagram. They said the vendor changed boards after the article went to press. Don't trust anything in their diagram. They even got the power supply wired wrong. I had to view the instructions from buildyourcnc to get things working. You will fry you drivers if you do anything that is referenced in the woodsmith article. While I did get it built and working, I had to make modifications on many of the dimensions to get it put together right. They make no mention of the tight tolerances required or how square and level everything must be. The beast works but the publication leaves you dangling when it comes to the important details after you get it built.

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looking at woodsmith CNC and wanted better understand how it is wired. is it possible to get better wiring diagrams or manuals?

Yes, the knife you are referring to is called a tangential knife and is available here https://buildyourcnc.com/Item/endmill-Tangential-cutting-Dragknives-Donektools-D2

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I want to build a similar CNC to the Blacktoe 2'x6' design that Matt Gottscualk built. Is it possible to also outfit a small knife tip/setup for very precise cuts in vinyl/plastic?

Mounting the extruder to the whiteAnt can be done a couple of ways. One is to take the 4 mounting holes located at the lower portion of the z-axis rail support and use long screws protruding out. Take a thinner material and drill the four holes matching the locations of the 4 screws and screw on nuts to hold it in place. The other option would be to use the metal bracket and fasten to the edge of the rail support.

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IS IT POSSIBLE TO MOUNT THE NEW EXTRUDER WHITEANT?

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

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While motor tuning what are the recommended steps per inch, velocity, and acceleration for the GreenBull CNC?

We do offer all of the parts; but it is best to purchase them a la carte. You will probably not want the hardware since this would not conform to a design in metal.

All of the mechanical parts are available here:
https://buildyourcnc.com/CNCMachineMechanicalParts.aspx

All of the electronics you would need is available here:
https://buildyourcnc.com/electronicscombo.aspx

All of the laser components are available here:
https://buildyourcnc.com/LaserComponents.aspx

And the spindles and VFDs are available here:
https://buildyourcnc.com/SpindlesAndAccessories.aspx

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Hello, I'm interested in GreenBull 5'x10' CNC machine kit with 40W laser head. Is it possible to receive an offer for this size cnc machine kit with all the mechanics, electronics and laser parts, but without all the wooden parts? We would like to build this kind of laser cutter machine with metal frame and parts. And is it possible also to get 3D drawing for machine? Waiting for your answer.

Dealing with our inverters, they are built with a bit of margin on the input power. For our 220V VFD the margin is from 170-250V 50/60Hz, so running our VFD in your location will not be an issue! Our electronics will not have a issue running at 230V as well.

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Hello. I am interested in the green bull 6X long z CNC machine with electronics. I live in NZ, where the voltage is 230 V and 50 Hz. is it going to be possible to get the inverter to run here? Thanks!

The file type to save for use with Mach3 is .tap or .nc. Make sure that you specify Mach3 as the post processor in Meshcam.

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Helo. I'm using Meshcam to generate the toolpaths. What type of files should I "save as" for the greenbull CNC using Mach3 with the UC100 USB to Parallel?

The available options for the blackFoot, is only structural components with hardware, and structure components/hardware with electronic components.
However we currently do not have any plans available for public use/distribution.

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I have a 4x8 CNC and would like to cut my own parts for the Blackfoot. What is the price for the plans and the electronics ?

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

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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?

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?

The roller chain lengths for the greenBull 4x is:
- 13 feet for each side of the X axis (total of 26 feet), and
- 6 feet for the Y-axis

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WHAT ARE THE ROLLER CHAIN LENGTHS FOR GREENBULL 4X

76" X 40" X 26"
230 LBS

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WHAT ARE THE SHIPPING DIMENSIONS FOR GREENBULL?

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.

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

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 DIMENSIONS FOR GREENBULL TABLE?

Absolutely! You can have almost unlimited limit switches and home switches on this controller. It all comes down to the wiring scheme used. I recommend the home switches be on separate input terminals. For example, IN1 would have the X home switch, IN2 would have the Y home switch and, IN3 would have the Z home switch if you plan on using home switches for the Z axis.

Adding the limit switches, these can be located on any input you want, even on the IN1, 2 or 3. The wiring scheme I like to use is as follows:
- IN1 has the X home, X limit ++, and X Limit --
- IN1 has the Y home, Y limit ++, and Y Limit --
- IN1 has the Z home, Z limit ++, and Z Limit --

In most cases, the Limit -- is the same switch as the Home switch.

These can be wired as NC (Normally closed) as a serial scheme, or as NO (Normally open) as a parallel scheme.

To understand the limits and wiring schemes, check out this video:

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[575] Hi, for the manage the limit switches, is it possible to have, for example, the same limit switch for X-- and X homing? And what is the configuration in mach3? In my CNC machine they are in the same position. Thank you