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Thread: Hotend temp - fluxtuations
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04-04-2015, 07:54 AM #1
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- Dec 2014
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- Canada
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Hotend temp - fluxtuations
I noticed that
when I watch the hotend temp on the LCD display.. it jumps wildly.. its set to 245 and it might jump down to 239 and then to 250 within 1 second.
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04-04-2015, 09:44 AM #2
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- Mar 2015
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- Palo Alto
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I doubt that is physically possible for the nozzle to actually swing that much that fast with the heater we have. I would hazard a guess of poor thermistor contact with the block.
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04-04-2015, 10:45 AM #3
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I have a E3D v6 the thermistor is screwed down
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04-04-2015, 04:38 PM #4
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- Feb 2015
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- 8
I would perform PID tuning/calibration.
Be sure you have the correct thermistor selected for the E3D (1 I belive) and then run the following command from Pronterface:
M303 E0 S200 C8
See this site for a more in depth description or watch Tom's guide here (Highly recommended).
swirvbox
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04-04-2015, 07:32 PM #5
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- Nov 2014
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E3d thermistor is 5
And you should pid auto tune the temp you plan to print at which is the S value
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04-04-2015, 09:46 PM #6
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- Feb 2015
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You are correct. It is 5. Derp. I print at anywhere between 185 and 270. Not on the i3v however. I have not had the hexagon up that high yet. I am still not as confident with that hotend as I am with my E3D.
I have already had to reseat the heater to the heat break once already with the Hexagon. What a mess it made as it puked plastic from the top of the heat block.
swirvbox
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04-05-2015, 01:26 AM #7
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- Nov 2014
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- 522
Yeah i had that happen too... I am saving my hexagon for my kossel i am building its a nice light all metal hotend.
Qidi X Plus 3 Paper thin first...
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