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Question #: 3623

Question: USB CNC Keyboard Speed Pot Size?

Current Solution

The potentiometer for the speed header on the usb interface is used as a voltage divider, so the ohm value is just going to portion the voltage rather than output a resistance. You can use many values, but I would use a value of around 5k ohms.

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Other Possible Solutions to this Question

  • On the USB BOB, is the "speed" on the Keyboard Jog control the travel or spindle speed?

    The speed on the keyboard jog header is controls the jog travel speed.

    The speed pin would be connected to the wiper of a potentiometer and the other two leads of the potentiometer would be connected: one lead to GND and the other lead to 5V.

    Click the link to add information to this solution:
    On the USB BOB, is the "speed" on the Keyboard Jog control the travel or spindle speed?

  • What is the pinout of the 12-pin keyboard jog header on the V2.1 CNC USB controller?

    The pinout of the USB interface's keyboard job interface can be found here at the usb interface page:
    https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-USB-Controller-Breakout#prettyPhoto/2/

    Scroll down to the instructions below the description and it's the first instruction step. Click on the picture. Just copy and paste that link into the address bar and the diagram should appear.

    Click the link to add information to this solution:
    What is the pinout of the 12-pin keyboard jog header on the V2.1 CNC USB controller?

  • USB Interface datasheet?? Keyboard jog pins are ??

    Here you will find the datasheet for the USB Breakout Board, (https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-USB-Controller-Breakout#prettyPhoto/2/).

    Now instructions will be on the bottom left corner for the setup required for keyboard jog.

    Click the link to add information to this solution:
    USB Interface datasheet?? Keyboard jog pins are ??

  • Can you guys get PoNET kbd48CNC - CNC keyboard please

    Yes, we will definitely check out the PoNET kbd48CNC - CNC keyboard and consider adding them to the website.

    Click the link to add information to this solution:
    Can you guys get PoNET kbd48CNC - CNC keyboard please

  • [468] The CNC is routing my letters half the size

    In Mach4, you need to calibrate your axes so that real-world measurements are the same as the measurements for your axes' position.

    Mach4 has a wizard that allows you to calculate the steps per unit for an axis. This is a manual operation, so you will need to use the existing steps per unit in the axis you wish to change.

    Go to motor tuning to grab this number and copy it to the clipboard. Now go to the wizards menu and "select wizard". Scroll through the wizards until you see "StepsPerUnitCalculator" wizard and accept that wizard.

    A new dialog box will appear with fields that you can use to determine the new steps per unit for the desired axis. The incremental move button is available so you can test new values calculated for the steps per unit for the axis. Use the "move distance" along with the "move velocity" to incrementally move to determine move distances.

    Click the link to add information to this solution:
    [468] The CNC is routing my letters half the size

  • Mach3 USB CNC Interface EMERGENCY STOP

    To connect an emergency stop (e-stop) to the Mach3 USB controller, use the emergency stop switch/button on the NO (normally open) connections of the switch. Connect one side of the NO connection to IN1 and the other side of the NO connection to the DCM, or GND (V-) of the 24V power supply that is used to power the Mach3 USB controller.

    Additional Information:
    The configuration in Mach3 should be default if you used the XML file that is here:
    https://www.buildyourcnc.com/item/electronicsAndMotors-electronic-component-breakout-Mach3-USB-Board

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    port
    pin

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    port

    Click the link to add information to this solution:
    Mach3 USB CNC Interface EMERGENCY STOP

  • Can the USB CNC Controller be used with LinuxCNC?

    The USB Interface can only be used with the Planet-CNC software which runs under the windows operating system.

    Click the link to add information to this solution:
    Can the USB CNC Controller be used with LinuxCNC?

  • What size motor is powering the y axis on the greenLean CNC machine?

    For our greenLean CNC vertical machine, was built and controlled using 2 651-oz in motors/425 oz-in motor.
    The 651-oz motors runs both the x/y axis, as our 425-oz motor controls the z axis.

    Click the link to add information to this solution:
    What size motor is powering the y axis on the greenLean CNC machine?

  • Why is BuildyourownCNC selling outdated Planet CNC USB controllers?

    We will be deprecating these controllers soon and recommend our mach3 USB boards instead. Planet-CNC is a good CNC control program, however, the boards that we offer was designed in-house to feature a more compact design, but the boards on the Planet-CNC website is more feature filled.

    Click the link to add information to this solution:
    Why is BuildyourownCNC selling outdated Planet CNC USB controllers?

  • Can I use your USB interface board and Mach4 on my 3 axis CNC router?

    The USB interface that we sell only works with planet-cnc software. We will be developing our own USB board and plug-in that will work with Mach4 very soon.

    Additional Information:
    does the mach3 usb interface board work with mach4?

    Click the link to add information to this solution:
    Can I use your USB interface board and Mach4 on my 3 axis CNC router?

  • Can I use your USB interface board and Mach3 on my 3 axis CNC router?

    Planet-CNC is the control software. If you decide to use the USB controller, you will need to use the planet-CNC software as the control software. You will be able to use any of the CAM software applications with the planet-CNC control software.

    Click the link to add information to this solution:
    Can I use your USB interface board and Mach3 on my 3 axis CNC router?

  • MY PARTS ARE COMING OUT THE WRONG SIZE

    In Mach3, go to the Settings Tab, and select "Set Steps Per Unit". It will ask you how far to move the machine. Before you do this, make a mark on the table exactly where the end mill is resting. You can do this by lowering the end mill until it touches the material, then spinning it by hand to cut a small dimple in the material. Then, raise the end mill to clear the material, and assign a distance to move the machine. Once the machine moves and stops, measure the exact distance that it actually traveled with a tape measure, and enter this value into the dialog box that asks how far it moved. Mach3 will automatically adjust your steps per unit for that axis to be more accurate. Do this for all axes often to ensure you are cutting accurately. The longer distances you use calibrate, and the more precise you are with your measurements, the better.

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    Click the link to add information to this solution:
    MY PARTS ARE COMING OUT THE WRONG SIZE

  • MY MACHINE CUTTING THE WRONG SIZE PART

    In Mach3, go to the Settings Tab, and select "Set Steps Per Unit". It will ask you how far to move the machine. Before you do this, make a mark on the table exactly where the end mill is resting. You can do this by lowering the end mill until it touches the material, then spinning it by hand to cut a small dimple in the material. Then, raise the end mill to clear the material, and assign a distance to move the machine. Once the machine moves and stops, measure the exact distance that it actually traveled with a tape measure, and enter this value into the dialog box that asks how far it moved. Mach3 will automatically adjust your steps per unit for that axis to be more accurate. Do this for all axes often to ensure you are cutting accurately. The longer distances you use calibrate, and the more precise you are with your measurements, the better.

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    idwmHJym

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    -1 OR 2+78-78-1=0+0+0+1 --

    Additional Information:
    -1 OR 2+135-135-1=0+0+0+1

    Additional Information:
    -1' OR 2+886-886-1=0+0+0+1 --

    Additional Information:
    -1' OR 2+357-357-1=0+0+0+1 or 'xkLzGxAb'='

    Additional Information:
    -1" OR 2+279-279-1=0+0+0+1 --

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    Click the link to add information to this solution:
    MY MACHINE CUTTING THE WRONG SIZE PART

  • Is the USB hub ready for use with Mach3 at this time, or just Planet CNC?
  • I am building a cnc mill using your USB controller and i would like to know what is the specification of potentiometer used for adjusting manual axis jog speed

    Dealing with our USB BoB, the potentiometer that will be used in the key jog, is a 5V, 5k - 10k Ohm potentiometer.

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    I am building a cnc mill using your USB controller and i would like to know what is the specification of potentiometer used for adjusting manual axis jog speed

  • Can the spindle speed and direction be conrolled by LinuxCNC?

    LinuxCNC has excellent documents; however, I would like to offer our help in case you don't understand the information on that page. So, please use this FAQ (Question #: 13233) to state your questions by submitting additional information below.

    The LinuxCNC spindle control page is found here: http://linuxcnc.org/docs/html/examples/spindle.html

    Additional Information:
    After reading the LinuxCNC page my first questions would be can the spindle be controlled by PWM signal? Also, what pin on the parallel port would I set to Spindle Enable and FRW?

    Additional Information:
    To connect your computer to the VFD, use a USB to RS-485 interface. RS-485 is just a serial interface protocol that uses standard 0 to +5 voltage TTL signal levels for communication (as opposed to RS-232 which uses -12v and +12 for signal level changes).

    Get a high quality interface to reduce any issues during the process. The VFD should have two terminals labeled RS+ and RS-. The USB to RS-485 adapter should have this labeled on it as well so the connections should be relatively straight forward.

    In the VFD parameters:
    PD001: 2 to accept RS485 commands
    PD002: 2 to accept frequency comands
    PD163: 1 to RS485 slave address:1
    PD164: 1 RS485 baud rate 9600
    PD165: 3 8bit, no parity, 1 stop bit

    Make sure LinuxCNC is also set accordingly:

    The PIN14 and PIN16 in the stepconf wizard should be set to unused because you don't want LinuxCNC to be outputting unnecessary signals.

    In the options step of the stepconf wizard:
    - Check the Include Halui user interface component.
    - Check the Include custom PyVCP GUI panel.
    - Check Spindle speed display

    You will want to edit the custom.hal text file located in the folder that was created from the stepconf wizard. Add these following lines:
    loadusr -Wn vfd hy_vfd -n vfd -d /dev/ttyUSB0 -p none -r 9600
    net spindle-cmd-rpm-abs => vfd.speed-command
    net spindle-cw motion.spindle-forward => vfd.spindle-forward
    net spindle-ccw motion.spindle-reverse => vfd.spindle-reverse
    net on motion.spindle-on => vfd.spindle-on

    The dev folder in linux is typically used for interfacing devices and peripherals to the computer as these devices are communicated by simple memory addresses and these files are linked directly to these addresses.

    Under the custom_postgui.hal file, change this line:

    from: sets spindle-at-speed true
    to: net spindle-at-speed => cfd.spindle_at_speed

    and add the line:

    setp vfd.enable 1

    When you start LinuxCNC, you will a spindle section with the reverse and forward buttons, a stop button and - and + buttons. Use these buttons to conform that the spindle is functioning properly. The spindle speed indicator in LinuxCNC will show the spindle speed and you can confirm that this is equal to the speed indicated on the VFD.


    Credit for this helpful information goes to:


    Additional information was also added by us to provide a better understanding.

    Additional Information:
    linuxcnc利用MACH3 接口板 BL-MACH-V1.1的一路经光耦隔离的 0-10V 模拟电压输出,可以控制具有相应模拟接口的变频器,控制主轴转速。输出口为 P1 口,如何利用这个p1口与变频器进行接线来控制主轴转速,并对hal文件配置代码进行书写

    Click the link to add information to this solution:
    Can the spindle speed and direction be conrolled by LinuxCNC?

  • Do you offer custom CNC routers?

    Yes, we can design and produce custom CNC routers. You will need to contact us to discuss the customization that you would like.

    Click the link to add information to this solution:
    Do you offer custom CNC routers?

  • WHAT SIZE COLLET IS IN YOUR 1.5 KILOWATT SPINDLE?

    The collet in the 1.5 kW spindle is an ER-11 and cannot reach the 1/2" size. I would consider the 2.2 kW spindle instead.

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    WHAT SIZE COLLET IS IN YOUR 1.5 KILOWATT SPINDLE?

  • CAN I USE A MAC TO CONTROL THE CNC?

    There are several CAD/CAM programs out there for MacOS. Here is a list of a few: http://www.macuser.de/forum/f53/3d-2d-cad-395058/#post4499316
    I've also read good things about punchCAD: http://www.punchcad.com/
    Of course, there is always SketchUp if you are in a pinch. There are a few CAM plugins for SketchUp as well, but I've never used them, so I can't vouch for them.

    CAD/CAM will get you as far as designing your parts and producing the g-code, but if you also want to run the CNC machine with your Mac, you will need a piece of software similar to Mach3 or EMC to run the g-code. I haven't been able to find anything like these programs that runs on Mac, so you may have to run Mach3 or EMC in Windows using Boot Camp or a virtual machine such as VMware or Parallels.

    Personally, I would use the Mac to do all the CAD/CAM, then use a cheap PC to run the CNC machine.

    Additional Information:


    Additional Information:
    EasyDNC for OSX
    www.dnc-x.com

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    Additional Information:
    Hi guys I’m new to the cnc and I’m beginning to learn how to operate and cad-cam software also my cnc runs on Mach3 my questions is if I should use MacBook to do all designs if I can have all this software to run on Mac or I have to use windows software to operate it? I have separate small computer connected to the cnc table who have Mach3 on it please help. Also if you know any other software much easy for beginners please let me know thank you guys!
    My email if needed is r1jastrzebski@gmail.com

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    Hi , thank you for your advise!

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    Hi , thank you for your advise!

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    Hi , thank you for your advise!

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    Hi , thank you for your advise!

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    Click the link to add information to this solution:
    CAN I USE A MAC TO CONTROL THE CNC?

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