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Recently, I started experimenting with new filaments on my Ender 3 V2. I got a spool from here.

This is PETG filament and I started dialing in the temperature to run a smooth print. I found on my V2, if I run the filament around 240 °C, it prints very smoothly and the extruder doesn't jitter or distort the filament during printing.

However, I found after the printer was printing for about an hour it had reduced its hotend temperature to 210 °C and the print went bad! I have a stock hotend for the V2. Any thoughts as to why the temperature would have reduced itself?

0scar
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TheCollector
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  • Welcome to 3DPrinting.SE. The printer does not change the temperature without a corresponding instruction. Check if your G-code contains temperature reduction instructions. Did you have similar problems with a previous print? Is this the first time you are printing with PETG? Are the settings in your slicer correctly set? – Molitoris Apr 13 '21 at 11:37
  • IMHO the answer for this question is found [here](/a/11811/5740), and as such a duplicate, please find out if your printer has [Thermal Protection](/q/8466/) enabled, read for details [this answer](/a/8467/). – 0scar Apr 14 '21 at 09:20

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