Hot End Temperature Fluctuation

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Hot End Temperature Fluctuation

Post by ModernGnome on Sun Jun 19, 2016 2:29 pm

I've been monitoring the range of hot end temperatures  (which you can see by maximizing the size of the Germinate window while printing and looking in the lower left-hand corner of the window) and I'm seeing a larger than expected fluctuation on my Root. When printing at 196C, for example, it continually ranges between 189 and 201. This suggests to me a not particularly well optimized PID table in the firmware. Does anyone else see a similar (or larger?) range of fluctuation?

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Re: Hot End Temperature Fluctuation

Post by Asphalt on Mon Jun 20, 2016 10:18 am

I have seen some temp fluctuation, but usually only when the heating element works its way out of the head.

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Re: Hot End Temperature Fluctuation

Post by gpiffle on Tue Jun 21, 2016 10:46 pm

I get fluctuations in the temp as well while printing... right there on the printer display, it will go from 185 to 205 when set for 190.

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Re: Hot End Temperature Fluctuation

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