BuildYourCNC - 5'x10' Heavy Duty CNC Machine (greenBull 5X)

Overall view of the greenBull cnc router

Vacuum hose shown inserted into the top of the z-axis for stability down to the dust shoe

The view of of the router version of the dust shoe and how the vacuum hose is positioned.

5'x10' Heavy Duty CNC Machine (greenBull 5X)

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5'x10' Heavy Duty CNC Machine Kit (greenBull 5X) - with 2.2kW Spindle

This kit comes with everything included in the base kit and adds a 2.2KW Spindle with 220V inverter. Contact us if you need a 110V version.

$5,500.00

5'x10' Heavy Duty CNC Machine (greenBull 5X) with 2.2kW Spindle - Assembled Version.

This includes everything in the base kit including the 2.2kW Spindle. This version is assembled, meaning we put the gantry together and ship it out to you. You then just need to build your table and attach the rails, bearings, and gantry.

$7,000.00

Introduction:

The huge 5'x10' (greenBull 5X) has the ability to mill up to 5'x10' sheets, so if you're milling sheets that come wider than 4 feet, the 5X has that little extra size you need to get the job done in no time. We also offer a Long Z option with the capabilities to machine thick foam.
Table or Torsion Box Not Included

Description:

Bigger. Faster. Stronger.

The greenBull 5X Heavy Duty CNC is a fully equipped CNC machine kit that will allow you to mill full length 5' x 10' sheets. So if you're milling Baltic Birch that comes in standard 5' x 5' sheets, this is a perfect machine for you.

The 5X is designed to go well above and beyond what is usually expected out of a budget-priced CNC. The cutting area of 5'x10' is generally much larger than what you'll find in this target price range. The heavy duty gantry is designed to take a pounding day in and day out.

The greenBull series, like all our machines, is American-made in the great state of Texas. Whether you're looking to automate the process for general woodworking applications, cabinetry, sign-making, construction, or milling other material like acrylic or light aluminum, the greenBull has the power to significantly reduce your production time.

Purchasing Guide

Basic Kit – with 2.2kW Spindle - Includes everything in the basic kit and a 2.2kW Spindle with 220V Inverter. Does not include: Table, Computer, Software, Bits (end mills) Spindle is water-cooled and requires some additional wires and plumbing equipment. We recommend you seek a licensed electrician for installation. If you don’t have access to 220V power, we can provide you with a 110V inverter. Contact us for a custom quote. Note: THE MACHINE KIT ASSEMBLY PROCESS IS VERY DIFFICULT. IF YOU HAVE ANY DOUBTS ON YOUR ABILITY TO PUT A KIT TOGETHER IT IS STRONGLY RECOMENTED TO PURCHASE AN ASSEMBLED MACHINE. VERY LIMITED SUPPORT FOR KIT PURCHASES.

Assembled Version – with 2.2kW Spindle - Includes everything in the basic kit – with 2.2kW Spindle. We assemble the gantry for you and ship it to you in a crate via freight carrier (you choose during checkout). You will still need to construct your own table for the gantry and install the aluminum rail on it.

Computer and Control Box Options -

Basic Assembled Control Box redFly – with this option we install and wire the electronics in a custom-made control box. This is a great option if you want to save the time of wiring and mounting the electronics yourself.

Assembled Control Box with Deluxe Computer – Includes the control box option plus an integrated computer built into the control box. The computer features an Intel Pentium 3.0 GHz processor with 2GB of RAM and a Seagate 1TB Internal Hard Drive. This package includes Mach3 CNC software and a Windows 7 Professional license, which we will register in your name and pre-install on the computer for you.

Technical Stuff

The greenBull 5X features a standard travel size of 5 feet by 10 feet.
Actual table dimension for the 5'x10' are 67.3587"x145.5" (the overhang in the illustrations should be 3/4" thick)
The overall design has increased rigidity for the new routing/milling area but still maintains the aesthetics that are common across all of the machines on this site.
To guarantee that the gantry doesn't flex at all, a series of ribs were added within the gantry box making the entire gantry very similar to a torsion box.
The motors selected for all of the axes are NEMA 34 with 1/2" shafts (driven by 6.0 amp drivers).
The dust shoe is redesigned to provide better dust extraction capability.

Important Things to Know:

The entire machine kit will take about 10-14 business days to produce and send out under normal circumstances. During busy periods this could increase to 15-21 business days. You can always contact us for an accurate estimate before purchasing. Assembled Machines will take longer as they have to be produced to order. Expect a lead time of 3-4 weeks for assembled machines.
We include a standard amount of 50 feet of motor cable for the greenBull 5X. The recommended length is for systems in which the computer will be placed right next to the machine. If you plan on having the computer further away from the machine you will need to purchase longer cable lengths. If you are unsure about how many feet of cable you need, please call or email us and we will assist you.
If you are purchasing a 2.2KW Spindle with Inverter, Laser Attachment, or both, you will need a water cooling system for each. This is a simple system using silicon tubing, a water pump and a 5 gallon bucket
The Spindle will require 12/3, 14/3, or 16/3 gauge cable for wiring from the inverter to the wall. You will also need 4 conductor wire for wiring the Spindle to the inverter as a 4th wire for ground is needed. It is important to understand the electrical requirements for wiring the Spindle, so for this reason we strongly recommend you check with a licensed electrician before attempting to wire it.

Table (Frame) Dimensions:

Actual table dimension: 5'x10' is 67.3587"x145.5" (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 (5X rail to rail is 67.3587"). This will provide a 2" overhang on both sides (5X frame width should be 63.3587").
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.

For International Buyers: Please do not use our shipping calculator if you are attempting to purchase a product that needs to be freighted and is outside of the United States. Please contact us and we will arrange a freight quote for you. Any products bought requiring freight will be subject to additional shipping charges if purchased without receiving a freight quote.

Wiring Diagrams and Tutorials:

2.2KW Spindle Wiring: Diagram

How to Program Inverter / VFD: Click Here

Mach3 USB Interface Board Wiring: Diagram

Parallel Breakout Board: Diagram | Video Tutorial

USB Breakout Board: Diagram | Video Tutorial

Accuracy and Precision

The resolution per axis is variable as you can change the driver's microstepping, but I typically set the parameters so that the mechanical and digital combination configuration yields greater than 1000 steps per inch. The x and y axes mechanical systems are based on roller chain which is tensioned. This provides a reduction in backlash, so the precision is very good (repeatability). The accuracy is generally based on how well the machine in calibrated and squared. Squaring is very simple as the gantry is squared by a combination of adjusting the roller chain sprockets on each side of the gantry and the adjustment of the gantry back hardware. Once the machine is squared and in a relaxed state, the hardware is tightened to maintain square permanently. Calibration is done through software and is as accurate as the physical measurement system is.

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Instructions

This is a demonstration of how one of our customers uses the greenBull CNC router.

Showing the Onsrud Super O spiral single flute end mill performance using the greenBull CNC router on extruded acrylic.

Cutting aluminum on the greenBull CNC router

Cutting full depth into MDO plywood using the spindle on the greenBull CNC router

surfacing the spoilboard using the greenBull CNC router and the Onsrud surfacing tool that accepts 2 carbide inserts.

General requirements for the under frame of the cnc machine. Here we make suggestions on how the frame can be constructed. A torsion box is also constructed, which is optional.

The torsion box is completed. Note: The torsion box has been discontinued.

The four (4) corner chain mounts are assembled and fastened to the four corners of the bed.

The front of the gantry is fastened with the top and bottom supports of the gantry. The ribs are fastened to the interior of the gantry. The y-axis rail support is fastened to the gantry front. Use only the number of ribs that are provided in the kit. There will be space for more, but they are not needed. The gantry sides are installed after the ribs.

The z-axis components are assembled, which includes the structural components of the z-axis length and rail supports and the router mounts.

The y-axis rails are installed onto the y-axis rail support piece that is at the front of the gantry.

The X-axis rails are fastened to the bed of the cnc machine.

The v-groove beariings are installed onto the z/y plate. The anti-backlash nut support is fastened to the z/y plate. The z/y plate is slid onto the y-axis rails on the front of the gantry.

The y-axis motor assembly is installed onto the z/y plate. This includes the y-axis motor mount, the idler sprocket fore the roller chain, the drive sprocket on the shaft of the y-axis motor, and the y-axis motor.

The y-axis chain is routed under the drive sprocket and over the idler sprocket, and the chain mounts and fastened to each end of the gantry to hold each end of the chain. Instead of using the hose clamps to tie the ends of the roller chain, #4 screws and nuts are used.

The z-axis assembly is installed between the bearings of the z/y plate. The z-axis motor mount is fastened to the top of the z-axis assembly. The z-axis mechanical components (bearings, collars and anti-backlash nut) is added to the assembly through the motor mount and the bearing support. The z-axis motor is installed onto the z-axis motor mount. The gantry is slid on the table rails.

The x-axis motor is installed within the interior of the gantry. The shafts that extend to the gantry sides that hold the drive sprockets are coupled to the x-axis motor. The roller chain is routed below the idler sprockets and above the drive sprocket and tied to the ends of the table to the chain mounts. Instead of using the hose clamps to tie the ends of the roller chain, #4 screws and nuts are used.

Wiring from the motors to the drivers is explained.

This video shows the mounting of the router. We highly recommend the use of a water cooled spindle for four main reasons: there is no flow of air to blow the chips around the shop and vacuum is more effective, the noise that a spindle makes compared to a router is considerably less, there is constant torque throughout the cutting process (routers will bog-down when making deep cuts), and generally, spindles will last far longer than routers making the spindle a less expensive option in the long run. Check this video to see the spindle in action.

The machine is completed with the fastening of the gantry back.