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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

  • 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 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 wire gauge should be used for the 36V 8.8 amp power supply

    Most of our power supplies allow for a 9 amp current draw.

    For the Neutral, Live and earth ground, wire gauge for that level of current is 14 for relatively short cable lengths. Increase the gauge for longer lengths past 25 feet.

    For the DC 24V output terminals to the drivers, 20 gauge is fine. If the power supply is connecting to only one driver, increase the wire gauge to 14.

    Additional Information:
    What gage wire should I use from motor to driver

    Additional Information:

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    What wire gauge should be used for the 36V 8.8 amp power supply

  • 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.

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    WHAT CABLE LENGTHS SHOULD USE FOR THE BLACKFOOT CNC MACHINE

  • what is the wiring coler and pin # for the whiteant extruder stepper motor

    For our extruder motor wire color and pin would be Red(A), Yellow(C), Gray(B), Green(D). The 2 x 3 (6) pin connectors on our 3D mainboard, are connectors for motor drivers. Pin #1 is 12v, Pin #2 s ground, Pin #3 is step, Pin #4 is direction, Pin #5 is enable and, Pin #6 is 5v.

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    what is the wiring coler and pin # for the whiteant extruder stepper motor

  • 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

  • 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.

    Additional Information:

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

  • What should the "glue groove" width be for flexible strip brush?

    The width and height that we have on our brush piece for our cnc machines, is 1/4" width and .30" depth , the length is dependent on your specific dimension of brush and the design of the brush piece.

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    What should the "glue groove" width be for flexible strip brush?

  • WHAT LENGTH OF MOTOR CABLE SHOULD BE USED WTIH THE BLUECHICK V4.2

    The recommended total length of motor cable should be 15 feet for the blueChick v4.2

    Z - 6 feet
    Y - 5 feet
    X- 4 feet

    20 AWG 4 conductor

    If your drivers will be positioned farther from the machine, you may need longer cable.

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    WHAT LENGTH OF MOTOR CABLE SHOULD BE USED WTIH THE BLUECHICK V4.2

  • 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...

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

  • What relay should be used with your USB BOB for controlling mist/flood/spindle on/off?

    The relay that should be used with your USB BOB for controlling mist/flood/spindle on/off is one of the following options.

    You could get and use the Planet-CNC.com Output Board found here, http://www.planet-cnc.com/index.php?page=shop

    Or you could create your own setup using a resistor, solid state relay, transistor, and diode. You can watch this video, https://www.youtube.com/watch?feature=player_embedded&v=PJO_XoLL6lQ, to find out the correct way to accomplish this.

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    What relay should be used with your USB BOB for controlling mist/flood/spindle on/off?

  • What kind of cooling system should we set up for the Blacktooth laser cutter laser tube? Can tap water be used? Is water temperature critical?

    The blackTooth's 40 watt laser tube can be cooled with simple tap water. A bit of anti-freeze keeps the tap water clean and free of algae. The cooler the water, the better output you will get from the laser. A great source of information can be found here: http://www.buildyourtools.com/phpBB3/viewtopic.php?f=8&t=3452

    Click the link to respond:
    What kind of cooling system should we set up for the Blacktooth laser cutter laser tube? Can tap water be used? Is water temperature critical?

  • 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?

  • 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?

  • The LED light on one of my Microstep Driver Blinks while the other 2 remain solidly lit. What should i look for?

    Have you tried to lower the amp setting on the driver that has the blinking LED.

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    The LED light on one of my Microstep Driver Blinks while the other 2 remain solidly lit. What should i look for?

  • How small of end mills are commonly used for cutting balsa? What thickness of balsa can these smaller mills handle?

    The size of end mills can vary to extremely tiny to very large cutting diameters. The smaller the cutting diameters, the shorter the available cutting length due to the possibility of breakage. You will first need to determine the thickness, or depth you will need to cut and find the available cut diameters for that depth.

    To cut balsa wood, almost any standard 1 to 4 flute end mill will be fine that are intended to be used with wood. The end mill will state the materials that it can cut. Wood end mills will exhibit a flute geometry that is more stretched out to straight.

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    How small of end mills are commonly used for cutting balsa? What thickness of balsa can these smaller mills handle?

  • 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.

    Click the link to respond:
    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.

  • For cutting with the BlackTooth, what is the best type of clear plastic/acrylic to use, and can you recommend a source?

    The blackTooth will cut acrylic very easily. The type of acrylic (cast or extruded) is not important since the acrylic itself has 100% absorption with CO2 lasers. Any plastic retailer, even the home improvements stores will have sheets of acrylic.

    Avoid using plastics that will off-gas toxic and corrosive fumes. One example is PVC which is Polyvinyl Chloride. The burning of that material will exhaust chloride into the air and combine with the hydrogen in the air causing a chemical reaction yielding hydrochloric acid which is corrosive and highly toxic to humans.

    Always read the MSDS (Material Safety Data Sheet) for any material that you intend to burn with the CO2 laser.

    Click the link to respond:
    For cutting with the BlackTooth, what is the best type of clear plastic/acrylic to use, and can you recommend a source?

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