I'm interested in one of your BlackToe kits. Will it cut plywood R/C airplane wing ribs accurately, including the small notches for spars and sheeting? I've heard gantry mass is too high, and causes the small notches to not be cut accurately.

Question #: 5766

Question: I'm interested in one of your BlackToe kits. Will it cut plywood R/C airplane wing ribs accurately, including the small notches for spars and sheeting? I've heard gantry mass is too high, and causes the small notches to not be cut accurately.

Current Solution

Our blackToe will work with R/C models, and can cut plywood, acrylic, foam, light sheets of aluminum. The gantry mass is not too dependent where you will see a significant accuracy loss that will not work with cutting small notches or small detailed parts, but depending on your CAD/CAM software and how accurate you specify the design it would be best if you create it in sections where you can change the endmill to a finer detailed bit when needed.
Also dealing with our CNC machines the accuracy is in the thousandths of an inch (0.001).
Dealing with small notches, you will most likely be better off using a small endmill/cutter, for very fine detailing (ex. a 1/8" endmill or a 1/32" endmill).

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Provided they will fit and I install a ventilation/cooling fan, is there any reason why I should NOT mount the electronics (breakout board, stepper drivers and power supply) inside the gantry box in my BlackToe 2x4?
First, see Jack's build: https://www.buildyourcnc.com/JackRehak.aspx

The difference between mounting the electronics in the gantry is that the connection from the computer (signal level) is long. The alternative, where the electronics is near the computer, the motor cables are long (to reach from the drivers to the motors).

Mounting the breakout board, drivers and power supply within the gantry will cause you to have a long signal connection from the computer to the breakout board. That is fine as long as the cable is long enough, possibly shielded, and can carry the signal at long cable lengths. Make sure to have the cable well away from the motor cables as these will cause quite a bit of interference.
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Provided they will fit and I install a ventilation/cooling fan, is there any reason why I should NOT mount the electronics (breakout board, stepper drivers and power supply) inside the gantry box in my BlackToe 2x4?
BUILDING ONE OF YOUR GREENBULL 6X LONG AND 2.2 KILOWATT SPINDLE DOES NOT FIT. SEEMS LEAD SCREW YOU SENT WITH KIT IS SHORT 42" LOOKS LIKE IT NEEDS TO BE 5 OR 6 INCH LONGER. THIS CORRECT? WHAT THE NEEDED LENGTH FOR UNIT?
The leadscrew length for the greenBull long Z-axis is 47 inches.

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BUILDING ONE OF YOUR GREENBULL 6X LONG AND 2.2 KILOWATT SPINDLE DOES NOT FIT. SEEMS LEAD SCREW YOU SENT WITH KIT IS SHORT 42" LOOKS LIKE IT NEEDS TO BE 5 OR 6 INCH LONGER. THIS CORRECT? WHAT THE NEEDED LENGTH FOR UNIT?
I have one of your smaller stepper motors running my X AXIS bridge crane and if it is moved to fast the stepper motor sounds like it is skipping steps will the 651oz stepper motor require a different power supply and controler?
Yes, the 651 oz/in motor requires a driver that is compatible to the motors (the motor will draw 6 amps max and the driver paired with this motor will be able to allow for a 6 amp draw). I would also recommend a 36 volt power supply for better high velocity performance.
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I have one of your smaller stepper motors running my X AXIS bridge crane and if it is moved to fast the stepper motor sounds like it is skipping steps will the 651oz stepper motor require a different power supply and controler?
I HAVE ONE OF YOUR SMALLER STEPPER MOTORS RUNNING MY X AXIS BRIDGE CRANE AND IF IT IS MOVED TO FAST THE MOTOR SOUNDS LIKE SKIPPING STEPS WILL 651OZ REQUIRE A DIFFERENT POWER SUPPLY CONTROLER?
Yes, the 651 oz/in motor requires a driver that is compatible to the motors (the motor will draw 6 amps max and the driver paired with this motor will be able to allow for a 6 amp draw). I would also recommend a 36 volt power supply for better high velocity performance.
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I HAVE ONE OF YOUR SMALLER STEPPER MOTORS RUNNING MY X AXIS BRIDGE CRANE AND IF IT IS MOVED TO FAST THE MOTOR SOUNDS LIKE SKIPPING STEPS WILL 651OZ REQUIRE A DIFFERENT POWER SUPPLY CONTROLER?
I JUST RECEIVED MY WHITE ANT AND STARTED TO DO SOME BASIC ASSEMBLY. NOTICE THAT THE 1/4 X 20 BOLTS WITH PHILLIPS HEAD NOT FIT IN NOTCHES CUT FOR THEM - INSTANCE, ON DREMEL MOUNT. AM SUPPOSED BUY DIFFERENT HEADS, GRIND ALL DOWN, OR ROUTE OUT BIGGER NOTCHES. 3" BARELY Z-AXIS MOTOR
BYCNC Response:
Please send a photo of the bolts and assembly so we can determine the problem. Thanks.

User Response:
The holes on the Dremel holder are 0.442" and the bolt heads are 0.483". Picture will be sent. In the picture note that the left bolt has been ground down.

BYCNC Response:
You were sent incorrect fasteners due to a vendor change. We will be shipping the correct parts to you immediately, and thank you for letting us know about this mistake.
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I JUST RECEIVED MY WHITE ANT AND STARTED TO DO SOME BASIC ASSEMBLY. NOTICE THAT THE 1/4 X 20 BOLTS WITH PHILLIPS HEAD NOT FIT IN NOTCHES CUT FOR THEM - INSTANCE, ON DREMEL MOUNT. AM SUPPOSED BUY DIFFERENT HEADS, GRIND ALL DOWN, OR ROUTE OUT BIGGER NOTCHES. 3" BARELY Z-AXIS MOTOR
Hi my names is Minh Truong I would like to said thank you very much for your video I got the system mach3 working fine but one thing I can NOT set and config the digitizer on the board IN4 I am not sure how to setup because in the Mach3 pin 14 for digitizer Please shoe me hoe to set it up for the digitizer.
Can you send me a link to the digitizer you are using?
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Hi my names is Minh Truong I would like to said thank you very much for your video I got the system mach3 working fine but one thing I can NOT set and config the digitizer on the board IN4 I am not sure how to setup because in the Mach3 pin 14 for digitizer Please shoe me hoe to set it up for the digitizer.
I AM CURRENTLY HAVING SOME PROBLEM SQUARING THE GANTRY AND MY STEPS PER INCH ARE NOT 1422.22 ACCORDING TO YOUR CALCULATIONS IN AUTO SET UP THEY COME OUT LIKE 1416.#### THIS A BIG DEAL?
Your steps per inch will vary. I suggest watching my calibration video.
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I AM CURRENTLY HAVING SOME PROBLEM SQUARING THE GANTRY AND MY STEPS PER INCH ARE NOT 1422.22 ACCORDING TO YOUR CALCULATIONS IN AUTO SET UP THEY COME OUT LIKE 1416.#### THIS A BIG DEAL?
I purchased some of your 20mm Hiwin Linear Rails. M5 bolts do not fit flush. The head stands out. Is the spec sheet out of date? What bolts will fit this rail AND T Nuts compatible with 8020's 15 series extrusions? Thanks.
Hi. The HIWIN spec rail will fit standard M5 screws. If you are using non standard screws with wide heads, or pan heads that are a bit larger than a standard round heads, then it may not fit. Make sure to source screws that have standard round heads, or socket heads for fastening the 20mm HIWIN spec rails.
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I purchased some of your 20mm Hiwin Linear Rails. M5 bolts do not fit flush. The head stands out. Is the spec sheet out of date? What bolts will fit this rail AND T Nuts compatible with 8020's 15 series extrusions? Thanks.
My Z-axis seems to be reversed on a fully assembled machine... I've tried reversing it in the config settings on Mach 3, but to no avail. What do I need to do? IS this a wiring issue that was not done correctly at the factory?
If your Z axis is moving in the opposite direction, go into Mach3, click on config, ports & pins, then click on the motor outputs tab. You will see the axes labeled on the left and the parameters labeled on the top of this dialog box. Toggle the dir low active for the z-axis.

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What if I'm having the same issue on a different axis?

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You can follow the same procedure as with the z-axis. When you get to the motors outputs tab, toggle the dir low active checkbox for the axis that you would like to change.

If you are using another control program, let me know and I will add the recommended action here.

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Girbl

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I have a grbl laser machine tronhoo machine that is running back wards and side ways wrong help

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I have a grbl laser machine tronhoo machine that is running back wards and side ways wrong help

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I have a grbl laser machine tronhoo machine that is running back wards and side ways wrong help

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I have a grbl laser machine tronhoo machine that is running back wards and side ways wrong help

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I have a grbl laser machine tronhoo machine that is running back wards and side ways wrong help

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I have a grbl laser machine tronhoo machine that is running back wards and side ways wrong help

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I have a grbl laser machine tronhoo machine that is running back wards and side ways wrong help

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I have a grbl laser machine tronhoo machine that is running back wards and side ways wrong help

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I have a grbl laser machine tronhoo machine that is running back wards and side ways wrong help

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I have a grbl laser machine tronhoo machine that is running back wards and side ways wrong help

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I have a grbl laser machine tronhoo machine that is running back wards and side ways wrong help

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I have a grbl laser machine tronhoo machine that is running back wards and side ways wrong help

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I have a grbl laser machine tronhoo machine that is running back wards and side ways wrong help

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My Z-axis seems to be reversed on a fully assembled machine... I've tried reversing it in the config settings on Mach 3, but to no avail. What do I need to do? IS this a wiring issue that was not done correctly at the factory?
HI, I HAVE INTENTION OF PURCHASING YOUR 1/2 INCH PRECISION LEAD SCREW SET TO BUILD MY CNC MACHINE, COULD THE SCHEMATIC DIMENSION ANTI-BACKLASH NUT, BEARING FOR AND SHIM? ALSO IS 2.2KW SPINDLE ABLE MILL ALUMINUM WHAT ACCURACY?
BYCNC response:

Milling aluminum is no problem with our machines.

Here is a video we recently did with our 4'x8' machine. The aluminum piece is about 1/4" thick: https://buildyourcnc.com/tutorials/tutorial-greenbull-aluminum-cutting

The accuracy you will see from our our 2.2kW spindle is entirely dependent on the precision of your build, so it's not possible to say what level of accuracy you can achieve without an examination of the complete system. However, our spindles have a runout of less than .0001 in, which includes the collets that we sell. If you use a collet from another manufacturer, we cannot guarantee this TIR (Total Indicated Runout) dimension.

For the dimension drawing of the anti-backlash nut, please contact us directly by phone or email to techsupport@buildyourcnc.com

User response:
I have emailed waiting for your reply.

User response:
Hi, I am still waiting for your email reply.

BYCNC response:
Your email has been sent.

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HI, I HAVE INTENTION OF PURCHASING YOUR 1/2 INCH PRECISION LEAD SCREW SET TO BUILD MY CNC MACHINE, COULD THE SCHEMATIC DIMENSION ANTI-BACKLASH NUT, BEARING FOR AND SHIM? ALSO IS 2.2KW SPINDLE ABLE MILL ALUMINUM WHAT ACCURACY?
HI, I HAVE INTENTION OF PURCHASING YOUR 1/2 INCH PRECISION LEAD SCREW SET TO BUILD MY CNC MACHINE, COULD THE SCHEMATIC DIMENSION ANTI-BACKLASH NUT, BEARING FOR AND SHIM? ALSO IS 2.2KW SPINDLE ABLE MILL ALUMINUM WHAT ACCURACY?
BYCNC response:

Milling aluminum is no problem with our machines.

Here is a video we recently did with our 4'x8' machine. The aluminum piece is about 1/4" thick: https://buildyourcnc.com/tutorials/tutorial-greenbull-aluminum-cutting

The accuracy you will see from our our 2.2kW spindle is entirely dependent on the precision of your build, so it's not possible to say what level of accuracy you can achieve without an examination of the complete system. However, our spindles have a runout of less than .0001 in, which includes the collets that we sell. If you use a collet from another manufacturer, we cannot guarantee this TIR (Total Indicated Runout) dimension.

For the dimension drawing of the anti-backlash nut, please contact us directly by phone or email to techsupport@buildyourcnc.com

User response:
I have emailed waiting for your reply.

User response:
Hi, I am still waiting for your email reply.

BYCNC response:
Your email has been sent.

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HI, I HAVE INTENTION OF PURCHASING YOUR 1/2 INCH PRECISION LEAD SCREW SET TO BUILD MY CNC MACHINE, COULD THE SCHEMATIC DIMENSION ANTI-BACKLASH NUT, BEARING FOR AND SHIM? ALSO IS 2.2KW SPINDLE ABLE MILL ALUMINUM WHAT ACCURACY?
How can we check our 1.5kw spindle. we get a dL error after we start to cut. it spins up fine. We checked IGBTs in the VFD and they're not shorted. We suspect intermittent short INSIDE the spindle. What do you think?
dL usually stand for a short that is occurring within the spindle or spindle wiring. I would recheck the wiring going from the VFD to the spindle, as well as the terminal on the spindle where there should've been some soldering required. We usually tend to either heat shrink or use electrical tape to cover the terminals so no contact or arching can be present.

Also depending on the VFD you have please adjust the setting pd008, to the voltage that is required (110V/220V).

If the issue proceeds please contact use at customerservice@buildyourcnc.com, for further assistance or replacement.
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How can we check our 1.5kw spindle. we get a dL error after we start to cut. it spins up fine. We checked IGBTs in the VFD and they're not shorted. We suspect intermittent short INSIDE the spindle. What do you think?
I AM INTERESTED IN THE 3 AXIS COMBO USB OPTION. NOTICE YOU ENDORSE PLANET-CNC FOR USE WITH THIS BUT WILL MACH3 INTERFACE WELL BEAK OUT BOARD?
Our MAch3 USB interface boards can be located here:

https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board
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I AM INTERESTED IN THE 3 AXIS COMBO USB OPTION. NOTICE YOU ENDORSE PLANET-CNC FOR USE WITH THIS BUT WILL MACH3 INTERFACE WELL BEAK OUT BOARD?
I LIVE IN ITALY AND WISH TO KNOW MORE ABOUT RADIATIONS CAUSED FROM MOBILE TELEPHONES. TELECOM WOULD LIKE PLACE A WIRE-ANTENNA THE HEARTH OF MY TOWN, I'M AFRAID IT. WHICH KIND RISK HEALTH COULD IT CAUSE? THANK YOU IF WILL SEND ME SOME INFORMATION SCIENTIFIC ARTICLES THIS PROBLEM!
See the question on our "Ask the Expert" question-and-answer list on cellular towers under nonionizing radiation for a discussion of RF safety issues associated with cellular radios. The technology underlying cellular radios and base station antennas is similar around the world, but there are differences in systems design and RF safety limits in different countries. For a summary of cellular radio RF safety issues with attention to international differences see the excellent Web page, Cellular Phone Antennas (Base Stations) and Human Health, by John E. Molder, Ph.D., from the Medical College of Wisconsin. Gary H. Zeman Sc.D., CHP
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I LIVE IN ITALY AND WISH TO KNOW MORE ABOUT RADIATIONS CAUSED FROM MOBILE TELEPHONES. TELECOM WOULD LIKE PLACE A WIRE-ANTENNA THE HEARTH OF MY TOWN, I'M AFRAID IT. WHICH KIND RISK HEALTH COULD IT CAUSE? THANK YOU IF WILL SEND ME SOME INFORMATION SCIENTIFIC ARTICLES THIS PROBLEM!
LIMIT SWITCHES FOR AXIS. THE PRINT SHOWS THAT YOU CAN WIRE LIMITS EITHER N.O. OR N.C. SO IF THIS IS CORRECT I WOULD NEED TO TELL BOARD IN SOFTWARE HOW LOOK AT THESE LIMITS, I'M GOING GET AN INPUT LOOSE DEPEND ON IT.
BYCNC Response:
This is correct. You will need to use a method appropriate for the software you are using. Also remember that NC switches are typically wired in series, while NO switches are normally wired in parallel.

User Response:
I am using the cnc planet software for your USB board. Are the limit configurations in this software?

BYCNC Response:
Yes, Planet CNC software is compatible with the use of limit switches. Configuration information will depend on your specific application. You can view Planet CNC's information here: http://www.planet-cnc.com/files/CNCUSBController.pdf
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LIMIT SWITCHES FOR AXIS. THE PRINT SHOWS THAT YOU CAN WIRE LIMITS EITHER N.O. OR N.C. SO IF THIS IS CORRECT I WOULD NEED TO TELL BOARD IN SOFTWARE HOW LOOK AT THESE LIMITS, I'M GOING GET AN INPUT LOOSE DEPEND ON IT.
I BOUGHT YOUR BOOK AND WAS HOPEING IT HAD PLANS OR DIMENTIONS ON HOW TO BUILD A CNC HOLD 4X8 SHEET OF PLY. WILL THE IN SCALE UP?
BYCNC Response:
The book build was intended to be 20 inches x 40 inches. Larger machines were designed after the book build was introduced so customers would have the option to go bigger than what the book offered. Check out our larger machines on the website as the machines sizes range from 1 foot x 3 feet all the way up to 6 feet x 12+ feet.

User Response:
I'm not wanting to spend $3,000+ on a machine, I want to build one that will do a 4x8 sheet of wood. Will the plans in the book scale up?

BYCNC Response:
It is possible to scale the book build up, but the rigidity of the gantry would be questionable at that span, even if the height of the gantry structure were to be increased. The gantry design would need to be modified to become a box shape rather than a flat configuration. The kits on the site were design for those wanting a larger machine.
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I BOUGHT YOUR BOOK AND WAS HOPEING IT HAD PLANS OR DIMENTIONS ON HOW TO BUILD A CNC HOLD 4X8 SHEET OF PLY. WILL THE IN SCALE UP?
ON THE BOB...EVERYTHING TESTS OK BOB EXCEPT X-DIRECTION OUT. IT'S VOLTAGE IS SLIGHTLY DIFFERENT THAN Y AND Z (5.00 INSTEAD OF 5.03. TESTED X DIRECTION ALL THREE DRIVERS. IN EACH CASE THERE GOING INTO DRIVER BUT NOT OUT IT.
The electronics can be tricky sometimes, especially if more than one change is made for a test. You can move the x-dir wire to another pin and set it in the software configuration. If it works, then only that pin is bad.
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ON THE BOB...EVERYTHING TESTS OK BOB EXCEPT X-DIRECTION OUT. IT'S VOLTAGE IS SLIGHTLY DIFFERENT THAN Y AND Z (5.00 INSTEAD OF 5.03. TESTED X DIRECTION ALL THREE DRIVERS. IN EACH CASE THERE GOING INTO DRIVER BUT NOT OUT IT.
is IT OK TO USE THICKER PLYWOOD (MATERIAL) to BUILD THE CNC MACHINE, BLACKFOOT, BLACKTOE?
Yes, it is ok if the thickness is plus or minus +/- about 2mm.

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is IT OK TO USE THICKER PLYWOOD (MATERIAL) to BUILD THE CNC MACHINE, BLACKFOOT, BLACKTOE?
IT POSSIBLE TO BUY THE CAD FILES FOR BLACK FOOT MACHINE, MECHANICAL PARTS AND ELECTRONICS BUT NOT WOODEN PARTS, SAVE SHIPPING COSTS? IN THAT CASE I WOULD INSTRUCT SOMEONE MILL ME.
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.

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

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IT POSSIBLE TO BUY THE CAD FILES FOR BLACK FOOT MACHINE, MECHANICAL PARTS AND ELECTRONICS BUT NOT WOODEN PARTS, SAVE SHIPPING COSTS? IN THAT CASE I WOULD INSTRUCT SOMEONE MILL ME.