Need help tuning PID settings, Upgraded to E3DV6 and updated firm ware but when ever i run M303, this occurs, also when i do test calibrations my hotend’s temperature would dip dramatically mid-print.
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attached is a screen shot of my matter control’s terminal
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Is the temperature drop coinciding with the fan coming on to cool the part being printed? With a new hotend your nozzle may be lower now and being cooled by the fan. If this is the issue e3d now makes a cover to go over the heater block to prevent this and help with temperature stabilization. http://www.filastruder.com/collections/e3d-spare-parts-and-accessories/products/silicone-socks-3-pack
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C_D
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EDIT:
Sorry just saw your attached picture. I have no experience with Matter Control so can’t help there, but double check your thermistor connections. If the thermistor reads out of the ordinary I would expect that it wont heat properly.
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Does this occur when your cooling fan comes on, is it consistent? Is the thermistor exposed to the airflow from the fan? Does you hotend have any form of insulation?
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roko11
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looks like your printer is disconnecting. and the temp seems to be dropping.
power issue?
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Generally when printing PLA the fan comes on after the first layer. So if the temp is stable on the second layer it is probably not a result of the fan kicking on.
What printer/control board are you running. This happens a lot with controllers that overheat because of poor power handling and insufficient cooling.
For or instance the Wanhao I3 with the Melzi board. Since the e3d has a larger heater block than the stock hotend, it takes more power to keep it at temp. The board can’t deal with the extra power and overheats on long prints causing wild temp fluctuations and or the board to fault.
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