If your axis shutters and will not move unless moved by another force, that sounds like your acceleration is set too high. Lower the acceleration until it works well, then lower it a bit more to have a margin of safety.

Users response:
I've lowered my acceleration to 1 in the StepCon program and it still shutters when I jog it, anything else I could check?

Buildyourcnc response:
IF that didn't work, try swapping the X and Y drivers. That way you will pinpoint if the issue is the driver. If the proplem persists, then there may be an issue with the motor itself.

Buildyourcnc response:
The X and Y drivers can be easily swapped by swapping only the motor wires.

- Remove the x-axis motor wires from the X driver.
- Remove the Y motor wires from the Y driver.
- Insert the X motor wires into the Y driver.
- Insert the Y motor wires into the X driver.

Buildyourcnc response:
Now the Y-axis will move the gantry. Test the Gantry movement by moving the Y axis using the up and down arrow keys (mach3).

Users response:
Problem is now solved, I switched the X and Y at the redFly and got the same problem, so then I undid the wires going to each motor and switched them there and it I had a bad solder point in the X axis connector, thank you for the help

Buildyourcnc response:
You're very welcome. We will make sure to thoroughly check the solder points on the cable connectors prior to a redFly delivery.

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GreenBull 5x10 X axis shutters and spins out with acceleration at 1 in StepCon, is there anything else I can check?

If your axis shutters and will not move unless moved by another force, that sounds like your acceleration is set too high. Lower the acceleration until it works well, then lower it a bit more to have a margin of safety.

Users response:
I've lowered my acceleration to 1 in the StepCon program and it still shutters when I jog it, anything else I could check?

Buildyourcnc response:
IF that didn't work, try swapping the X and Y drivers. That way you will pinpoint if the issue is the driver. If the proplem persists, then there may be an issue with the motor itself.

Buildyourcnc response:
The X and Y drivers can be easily swapped by swapping only the motor wires.

- Remove the x-axis motor wires from the X driver.
- Remove the Y motor wires from the Y driver.
- Insert the X motor wires into the Y driver.
- Insert the Y motor wires into the X driver.

Buildyourcnc response:
Now the Y-axis will move the gantry. Test the Gantry movement by moving the Y axis using the up and down arrow keys (mach3).

Users response:
Problem is now solved, I switched the X and Y at the redFly and got the same problem, so then I undid the wires going to each motor and switched them there and it I had a bad solder point in the X axis connector, thank you for the help

Buildyourcnc response:
You're very welcome. We will make sure to thoroughly check the solder points on the cable connectors prior to a redFly delivery.

Click the link to add information to this solution:
X axis won't move on 5x10 GreenBull, it just shutters unless I manually with my hand give it a push then it will jog. What should I check?

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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ROLLER CHAIN LENGTH GREENBULL

The brush strip for a 7518 router specifically for a GreenBull is 18 3/4" inches in length.

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GREENBULL BRUSH STRIP LENGTH

The greenBull 6X, uses a total of 52 Ft, of silicon tubing 1/4" ID - 3/8" OD. One way uses 26 Ft.

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GREENBULL 6X SILICON TUBING

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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ROLLER CHAIN LENGTHS FOR GREENBULL 4X

The total cable length for a greenBull 5x is 50 ft. Now the individual cable lengths for the axis, is x=15 ft, y=17 ft, z=18 ft.

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GREENBULL 5X CABLE LENGTH

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?

If you use the 2.2kW spindle, it can cut at 3/4 inch or 19 mm deep with at least a 1/4" cutting diameter single flute end mill. You will get better results with larger diameter end mills, but that is the worst case scenario. I still recommend doing a finishing pass on the edge to make sure everything is perfect.

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CAN THE GREENBULL CUT 18MM BIRCH IN ONE PASS?

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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GREENBULL TABLE

The total cable length for a greenBull 6x is 65 ft. Now the individual cable lengths for the axis, is x=20 ft, y=22 ft, z=23 ft.

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GREENBULL CABLE

The files and hardware option for our machines has been removed from the site due to the following reasons:
Difficulty for the end use of the files and the challenges (and time/money) on our side to assist in using these files.
The abuse of these files over the internet.
Ultimately may reduce the sales of machines keeping us in business.
Sadly, this is what has come out of our company attempting to be open; however, the machines sold on this site is still far lower in price than the competition for the quality that we provide as we have a great desire to engender the cottage industry to fulfill their need for low end manufacturing. My sincere apologies if this causes any inconvenience.

Additional Information:
NO, is not possible, I can help with the shipping cost

Additional Information:

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PLANS GREENBULL

76" X 40" X 26"
230 LBS

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WHAT ARE THE SHIPPING DIMENSIONS FOR GREENBULL?

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

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)

Additional Information:



Additional Information:

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WHICH MACHINE SHOULD I BUY, GREENBULL OR BLACKFOOT?

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)

Additional Information:



Additional Information:

Click the link to add information to this solution:
WHICH MACHINE SHOULD I BUY, THE GREENBULL OR BLACKFOOT?

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)

Additional Information:



Additional Information:

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SHOULD I SELECT THE GREENBULL OR BLACKFOOT CNC MACHINE?

The Greenbull machine can cut a very wide variety of materials ranging from foam to aluminum. We recommend the use of our 2.2kW spindle to allow the greatest flexibility. Aside from that, the most important thing is to use an appropriate end mill for the material you are cutting and to use appropriate speeds and feed rates.



BYCNC Response:
Our 40W laser can cut up to about 1/4" materials ranging from wood and acrylic down through lighter materials such as leather, fabric, foam, etc. Speed and final cut are greatly enhanced by an air assist upgrade. We also offer an 80W laser which has approximately twice the capabilities of the 40W.

Additional Information:

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WHAT MATERIALS CAN THE GREENBULL MACHINE CUT? LASER ETCH?

You can get them from us. Please send an email to sales@buildyourcnc.com with your order information, or call our customer service line M-F 9-5 at 281-815-7701.

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Working on GreenBull 5x10 assembly and I am missing one 1/2 rigid coupling for installing the X axis motor and chain mounts. I am also missing the two 1/2 drive sprockets as well. Where can I get these items?