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Current Temperature Zero. Please Help!


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Posted · Current Temperature Zero. Please Help!

Hi

I just assembled my newly arrived Ultimaker. In replicatorG the current temperature is shown zero. I can manually turn on the extrusion head header but the thermocouple cannot pick it up.

When I remove the yellow and red wire from the thermocouple away from the mini circuitboard, the temperature jumps to 2xx. So it seems I have plug in everything correctly. I manually measured the resistance across the thermocouple it is around 2-3 ohms. Is this normal or do I have a faulty thermocouple. Thanks.

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    Posted · Current Temperature Zero. Please Help!

    Sounds like a short in the thermocouple. Check if the temperature reports room temp if you disconnect the yellow & red wires (the temperature of the thermocouple board on top of the extruder will be reported then)

    Be careful, because if you heat up the machine to much (which can happen because it doesn't know how hot it is) you can melt the PEEK.

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    Posted · Current Temperature Zero. Please Help!

    Daid,

    Sorted now. Some how after I redo the red & yellow wire and do them again I get the temperature.

    Here is my first print :-)

    http://www.unclebobtech.com/successful- ... timaker-3d

    BTW I notice that the print head travel for about 10 secs then pause for 1/2 sec and keep on doing that. It creates small blob on the print. Anyway to fix that?

    2ndly I tried to increase the printfeedrate but seems no effect. Am I doing something wrong ?

    Cheers

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    Posted · Current Temperature Zero. Please Help!
    BTW I notice that the print head travel for about 10 secs then pause for 1/2 sec and keep on doing that. It creates small blob on the print. Anyway to fix that?
    Could be different issues. One of them is a motor driver overheating, but usually you also get "layer shift" then.

    Another one could be, what I call, "Funky USB". Next time it happens, try moving your mouse, or press a key on your keyboard (if those are USB), if the printer instantly continues when you do that. Then you have "Funky USB". I also have it. My solution right now is playing music on my USB headset, which seems to solve it. Running a webcam also works.

    I don't know WHY the Funky USB happens. I just know how to work around it.

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