As long as the bearing has a minimum thickness of 1/4" and 9/32" is a bit thicker, there will be no problem with the book build using the bearing that is 1/32" thicker. There is actually more surface area which is better.

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I am building the CNC in your book - Build you own CNC Machine. One of the bearing thicknesses is 1/4" I can't find that bearing online. I can find 9/32, will that be a problem. Do you have a source? Thx

CamBam specifically creates the g-code (machining operations) instructions to be loaded into Mach3. Make sure in your CamBam g-code file parameters, you are using the Mach3 post processor. If you have already done this, let me know. If you are not sure how to do this, let me know.

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I am having trouble connecting the cambam program with my Mach3 to my 4X8 Blackfoot CNC machine. Where can I get help on this issue. Have had my machine since 2015 and have not been able to use it. Thank you

Yes, we can make a redLeaf system that has all 6A drivers for use with the 651 oz-in motors. We can also wire the electronics in a way that two of the drivers will use the pins of the same axis so that axis will drive two drivers and motors.

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I am building a machine that requires 2 steppers to drive the Y axis, can you make me a redleaf system using the 651oz steppers that will work for me?

With our current models, that is a no. However our machines have the ability to be expanded length wise to the customer's choice. So you can design a share table if you add the required length of chain and rails and design the table accordingly to your specifications.

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The blackFoot 4'x8' CNC machine. Can Gantry be removed for festool track saw operation? A shared table situation. I am thinking that would be a no answer. But maybe a future design feature as run the gantry to far end and add a short opposite end section to allow a shared table set up.

The pictures of the table on the blackFoot v4.3 CNC machine page uses 2/4 studs, a torsion box, and a final top 3/4" layer.

The torsion box and the top bed layer lays on a frame constructed by 2x4 framing studs angled to resist twisting and for greater rigidity. the joints are simply connected with long screws and you can also use framing plates/ties. The torsion box is constructed of 3/4" MOD stock and has a ribbing pattern spaced around 8 inches apart. The design is similar to this: https://www.buildyourcnc.com/ModularTorsionBoxTable.aspx

The top later is simply multiple sheets of MOD 3/4" thick to conform to the required final measurement.

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The table top pictured with the blackFoot 4'x8' v4.3 CNC Machine Kit looks nice. I'd like to build one just like it. How thick is it? If it was made from multiple sheets, how did you make the butt joints?

If your CNC Router is plunging unexpectedly, it may be stalling in the upward movement. Check your velocity and acceleration for the z-axis. Recommended values for the blackFoot/blackToe CNC routers for acceleration and velocity is 80 ipm for velocity and 7 to 20 for acceleration. Test at the lower values to see if that helps. If it does help, then increase the values until the problem happens, then lower the values.

If the acceleration is too high, there may be a stall at the beginning of the axis travel because the motor cannot compensate for the inertia of the axis assembly. If the velocity is too high, but the acceleration is low, then a stall may happen at the motor's top speed.

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I purchase blackfoot cnc machine 4.1 resecentily cnc mech 3 upectedily plunging.I will cut one part and its fine the second I notice that it upectedily plunges and I dont have clue.. please help.

We are developing plans for our machine, but they are not completed yet. Please let me know if you would like to be added to our list of customers wanting plans. Thanks,

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If you have specific questions regarding CAD, CAM and Control, please add another question to the customer service and I will answer them in detail.

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How do I get started I would like to build a cnc router. Making the machine I can do, but I am weak on cad,cam and mach3. I am thinking about a 4’x4’. Do you have plans I can buy?

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, the plans are detailed sufficiently enough to produce CAD drawings. If you wish to create AutoCAD drawings from the plans that we provide, we ask that the information conform to the creative commons license established on this site.

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If i can get the autocadd drawings of the building mdf peices that need to be build are the plans detailed enough for me to make my own autocadd drawings? I have access to another machine to build my own.

Yes, we can make a redLeaf system that has all 6A drivers for use with the 651 oz-in motors. We can also wire the electronics in a way that two of the drivers will use the pins of the same axis so that axis will drive two drivers and motors.

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I am building a cnc router with twin ball screws on the long axis and I will have a rotary axis as well. I need a 5 axis breaker board using only 4 axis total. Can you help me?

You will need to build the table unit for your machine. There are instructions on how to do this at the bottom of the product page here, https://www.buildyourcnc.com/Item/cnc-machine-blackFoot-v4
There is no estimate on how much this will cost though, since there are too many variables involved to do this.

- PC with parallel port and USB port
- 20awg stranded wires for the motors - http://www.buildyourcnc.com/electronicscombo.aspx
- 18awg stranded wires for power supply to drivers
- 24awg stranded wires for breakout board to drivers
(location and spacing of components varies from one person to another, so we do not provide cables/wires)
- General purpose extension cord (cut the female end off) to provide power to power supply
- USB cable to power breakout board
- Parallel cable to communicate to breakout board
- Router
- (optional - instead of router) Spindle with power inverter http://www.buildyourcnc.com/SpindlesAndAccessories.aspx
- (if purchasing spindle with inverter) General purpose extension cord (240v) (cut the female end off) to provide power to power inverter
- End Mill(s) http://www.buildyourcnc.com/ProductsEndMills.aspx
- CAD, and/or CAD-CAM software (to produce geometry, machine operations, and g-code) http://www.buildyourcnc.com/CNCsoftware.aspx
- CNC control software (to read g-code and control machine) http://www.buildyourcnc.com/CNCsoftware.aspx

This answer is applicable to most of our machines with the exception of the greenLean and the blueChick since those machines are equipped with a table structure.

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I just wanted to know what I can expect to pay to build the blackFoot 4'x8' CNC machine, excluding computer, software and router? Is the kit complete or do I have to purchase additional items to finish?

The eyebolts are used in the squaring of the machine. I would use a standard carpenters square and first run the end mill along the edge of the square to first make it parallel with the long axis. Then run the end mill along the other edge with the short axis and adjust the eye bolts and chain according to the angle that the machine is out of square.

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DO NEED TO SQUARE UP THE MACHINE AND IF SO YOU HAVE INSTRUCTIONS OR VIDEO FOR THIS?

If you purchase the greenLean, you will get everything you need except a router, computer to operate the machine, and software to control the machine. You state that you have a computer. You can use this computer, but you will need to determine if it has a parallel port, or if you are going to need the USB controller option. As for the software, there are too many different options for you to choose from. We would not be able to tell you which to get, and how much it will cost you. This is a matter of preference. I can tell you, however, that you will need 3 types of software to complete a CNC project. You will need CAD software to design your design, CAM software to add tool paths and convert the design to g-code, and then control software to take the g-code and operate the machine.

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Hello  We would like to buy a greenLean Vertically Oriented CNC Machine we start from scratch and want to make sure that we get all the pieces, we need  hardware and software we have a PC and a Mac

If you purchase the greenLean, you will get everything you need except a router, computer to operate the machine, and software to control the machine. You state that you have a computer. You can use this computer, but you will need to determine if it has a parallel port, or if you are going to need the USB controller option. As for the software, there are too many different options for you to choose from. We would not be able to tell you which to get, and how much it will cost you. This is a matter of preference. I can tell you, however, that you will need 3 types of software to complete a CNC project. You will need CAD software to design your design, CAM software to add tool paths and convert the design to g-code, and then control software to take the g-code and operate the machine.

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Hello  We would like to buy a greenLean Vertically Oriented CNC Machine we start from scratch and want to make sure that we get all the pieces, we need  hardware and software we have a PC and a Mac

The cutting area is 20" x 40" for the book machine. This area is determined by the 2'x4' sheets that make up the bed of the machine. You can increase this area if you use larger sheets and adjust the gantry width by the same difference of the width of the sheets.

You can also use the plans from Woodsmith magazine to build a larger machine.
https://www.woodsmith.com/article/build-a-cnc-router-for-your-own-shop/

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need cutting area of 25 x 49 what size of gantry


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need cutting area of 25 x 49 what size of gantry

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I am building the 24" x 48" machine from the original book and i was wondering if anyone can provide me with the actual cutting area possible with that machine.

What problems are you having?

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I purchased a 4ft X 8ft Blackfoot CNC machine in 2015 and to this date have not been able to use it. How can I get some help. Thank u

I would first check the mechanical parts to ensure smooth motion. Is your machine bogging down during cutting or jogging/rapids?

You can increase the voltage to gain a higher speed for rapids/jogging, but make sure the driver can handle this voltage. There should be a max voltage on the driver label.

If the bogging down is happening during cutting, either reduce the cutting depth or switch out the drive and motor for the axis that is giving the problem.

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[129] I have a Blackfoot and have a question about the power supply. I currently have a 36V power supply and my machine bogs down, would a 70V or something like that help, or will that blow up my machine? thank you!

We apologize for the confusion! The current greenBull kit in the video is a 4' x 8' gB CNC machine, so we currently have a shorter Y-axis length, compared to the 5X/6X kits. However with the gB 5X you should skip every other section(or something similar so it is symmetrical), since we added the option for you to increase the number of ribs if you wish, but is not necessary for the CNC machine.

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Building the 5x10 GreenBull, I went to install the ribs on the mid section of the gantry and you say in the video to skip a spot for the motor to sit, but I have 3 sections that are going to blank not just one like you show in the video. Do I skip more than one, am I missing ribs?

Sure, email me at customerservice@buildyourcnc.com and I will send you a replacement for a minimal fee. I now use HDPE for that part. The HDPE holds up much better.

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I have a Blackfoot 4x4 v2 chain drive. my Y plate is broken . do you sell just the Y plate or can I buy just the Y plate spec plan? I love this machine Its great. my name is Jeff Krug I bought the complete package and electronics from you guys. thanks