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Question #: 806

Question: What thermocouple or thermister should I use for the extruder hot end?

Current Solution

The best choice would be a type K thermocouple.

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Other Possible Solutions to this Question

  • what depth increment should I use for pocketing and profiling with the 1/2" end mill?

    The pocketing depth per pass will depend on the hardness of the material, the router/spindle you are using and on the melting point of the material. Use the feedrate that you would normally use for the size and type of end mill. You will need to test the depth per pass, starting at the full depth of the pocket. The spindle should have no problem, but if you are using a router, then it may bog down, so easing up on the depth per pass is recommended. If the spindle/router has no problem at the depths you are using, then you need to evaluate the edge finish to determine if it is acceptable. If it is not acceptable, then ease up on the depth per pass. Keep doing these steps until you have the finish and precision you expect.

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    what depth increment should I use for pocketing and profiling with the 1/2" end mill?

  • WHAT CABLE LENGTHS SHOULD USE FOR THE BLACKFOOT CNC MACHINE

    The blackfoot requires a total of 50 feet of cable.

    The X axis needs 15 feet
    The Y axis needs 17 feet
    and the Z-axis needs 18 feet

    These are 20 gauge 4 conductor cable.

    Additional Information:

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    WHAT CABLE LENGTHS SHOULD USE FOR THE BLACKFOOT CNC MACHINE

  • WHAT CABLE LENGTHS SHOULD USE FOR THE BLACKTOE

    The motor cables for the blackToe are as follows:

    Total 30 feet

    X - 9
    Y - 10
    Z - 11

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    WHAT CABLE LENGTHS SHOULD USE FOR THE BLACKTOE

  • I have the hot end listed on your site here :http://buildyourcnc.com/item/3D-Printer-Component-extruder#prettyPhoto what thermocouple or thermistor do I need for the hot end? it is not clear my original order was the email jeremy.adair@compassauto.net. please let me know what I need to buy. thanks.
  • What kind of wire should I use between the invertor and the spindle?

    The type of wire that should be used between the spindle and the VFD (Variable Frequency Driver also called the inverter) should be of stranded type and we use between 18 and 16 AWG.

    The total current is divided among the three coil wires, therefor a wire gauge of 16 should be sufficient.

    Currently we use 20AWG 4 conductor.

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    What kind of wire should I use between the invertor and the spindle?

  • What type of cable and gauge should I use from the vfd to the wall outlet?

    I would recommend using 14/3 power cable for the connection from the wall outlet to the VFD. The 14 is the gauge and the 3 is the number of conductors (wires) in the cable.

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    What type of cable and gauge should I use from the vfd to the wall outlet?

  • CAN JUST USE PARTICLE BOAD FOR THE SPOIL BOARD OR SHOULD MDX SOMETHING ELSE?

    Well, I've never tried particle board. I would stay away from MDF since it is pretty terrible to breathe. You can use standard ply.

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    CAN JUST USE PARTICLE BOAD FOR THE SPOIL BOARD OR SHOULD MDX SOMETHING ELSE?

  • [78] What size circuit breaker should I use for this spindle?

    The 2.2kW spindle has a power rating of 2.2kW or 2200 watts.

    If the VFD AC voltage input is rated for 220 volts, then 2200 watts / 220 volts is 10 amps, so a 15 or 20 amp breaker will work.

    If the VFD AC voltage input is rated for 110 volts, then 2200 watts / 110 volts is 20 amps, so a 25 or 30 amp breaker will work.

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    [78] What size circuit breaker should I use for this spindle?

  • What wiring should I use to connect two motors for one axis?

    Yes, you can use 2 motors in the same axis output, however you will still need a driver for that motor! Also depending on the orientation on which you mount the motor you might have to invert the direction of the motor, and that will be simple by swapping the A+,A-, to the B+,B- locations and vice versa, from the driver to the motor wiring.

    Also you can run a slave motor using another axis on the board, and setting it up in the Planet-CNC settings.

    Planet-CNC/File/Settings/Axes, here you will enter 3 in the Number of Axes location, and then change the Function of the Axis 4 to Slave 1. There you will have the 4th axis or A-axis be a slave for the x-axis.
    Slave 1 - X-Axis
    Slave 2 - Y-Axis
    Slave 3 - A-Axis
    Slave 4 - B-Axis
    Etc...




    Additional Information:
    Do you act as if it's one motor and it goes to one controller on the motherboard?

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    What wiring should I use to connect two motors for one axis?

  • what size circuit breaker should I use with the 2.2KW VFD?

    The 2.2kW spindle has a power rating of 2.2kW or 2200 watts.

    If the VFD AC voltage input is rated for 220 volts, then 2200 watts / 220 volts is 10 amps, so a 15 or 20 amp breaker will work.

    If the VFD AC voltage input is rated for 110 volts, then 2200 watts / 110 volts is 20 amps, so a 25 or 30 amp breaker will work.

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    Additional Information:

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    what size circuit breaker should I use with the 2.2KW VFD?

  • [79] What size circuit breaker should I use for this VFD?

    The 2.2kW spindle has a power rating of 2.2kW or 2200 watts.

    If the VFD AC voltage input is rated for 220 volts, then 2200 watts / 220 volts is 10 amps, so a 15 or 20 amp breaker will work.

    If the VFD AC voltage input is rated for 110 volts, then 2200 watts / 110 volts is 20 amps, so a 25 or 30 amp breaker will work.

    Additional Information:



    Additional Information:

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    [79] What size circuit breaker should I use for this VFD?

  • [77] What circuit breaker should I use for this spindle?

    The 2.2kW spindle has a power rating of 2.2kW or 2200 watts.

    If the VFD AC voltage input is rated for 220 volts, then 2200 watts / 220 volts is 10 amps, so a 15 or 20 amp breaker will work.

    If the VFD AC voltage input is rated for 110 volts, then 2200 watts / 110 volts is 20 amps, so a 25 or 30 amp breaker will work.

    Additional Information:



    Additional Information:

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    [77] What circuit breaker should I use for this spindle?

  • [797] What power supply should I use for this relay?

    The dual 24VDC relay can use any 24V power supply that outputs 24V DC. A great power supply that will work well with this dual 24VDC relay is this power supply: https://buildyourcnc.com/item/electronicsAndMotors-power-supply-24v-1a-dc

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    [797] What power supply should I use for this relay?

  • I have a blue brew break-out board. Do I use a seprate power supply for it and what amp output should it have if used.

    We generally use the USB to power the interface (breakout board). The current from the computer is sufficient to supply the breakout board.

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    I have a blue brew break-out board. Do I use a seprate power supply for it and what amp output should it have if used.

  • I have a blue brew break-out board. Do I use a seprate power supply for it and what amp output should it have if used.

    We generally use the USB to power the interface (breakout board). The current from the computer is sufficient to supply the breakout board.

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    I have a blue brew break-out board. Do I use a seprate power supply for it and what amp output should it have if used.

  • wHAT IS THE SMALLEST LENGTH SHAFT I CAN USE FOR YOUR #25 DRIVE SPROCET?

    The hub length of the drive sprocket and the other mechanical devise that is used to connect on the shaft will determine the length of the shaft needed for use with the drive sprocket.

    The hub lengths for our drive sprockets are 1/2". So if you are connecting the drive sprocket to a motor, your motor shaft will need to be at least 1/2" in length.

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    wHAT IS THE SMALLEST LENGTH SHAFT I CAN USE FOR YOUR #25 DRIVE SPROCET?

  • What settings does I use for controlling the spindle in StepCon/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

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    What settings does I use for controlling the spindle in StepCon/Linuxcnc?

  • WHAT LENGTHS OF ROLLER CHAIN DO I USE FOR THE GREENBULL 4X CNC?

    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 LENGTHS OF ROLLER CHAIN DO I USE FOR THE GREENBULL 4X CNC?

  • ReplicatorG says my white ant extruder is at 500 or more. I've replaced the electronics on the printer but that hasn't fixed it what else can I do?
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