<![CDATA[SoliForum - 3D Printing Community — Help explaining a temperature fluctuation on extruder]]> https://www.soliforum.com/topic/3723/help-explaining-a-temperature-fluctuation-on-extruder/ Tue, 17 Sep 2013 00:07:47 +0000 PunBB <![CDATA[Re: Help explaining a temperature fluctuation on extruder]]> https://www.soliforum.com/post/36555/#p36555 So I finally gave up on finding the issue and decided to replace the hotend wiring and all.  When I started unplugging the hotend from the board I noticed the power plug for the extruder looked like the wires inside the connector were coming loose.  replaced the connector and my issue seems to be solved

]]> Tue, 17 Sep 2013 00:07:47 +0000 https://www.soliforum.com/post/36555/#p36555 <![CDATA[Re: Help explaining a temperature fluctuation on extruder]]> https://www.soliforum.com/post/34693/#p34693 I've got kapton tape, I'm referring to the black stretch insulator that is slipped on over the kapton tape.  Or is that not that important?

I'm not really sure how to describe it and can't take a picture right now but its black on the outside, stretch and appears to be white fabric on the inside.  I assume its to retain heat.


Thanks for the help, its good to not feel like your alone when you have a problem that you can't explain.  This forum has been so much more responsive than the official support

]]> Fri, 30 Aug 2013 14:18:53 +0000 https://www.soliforum.com/post/34693/#p34693 <![CDATA[Re: Help explaining a temperature fluctuation on extruder]]> https://www.soliforum.com/post/34689/#p34689 you can find kapton tape on ebay or amazon.

]]> Fri, 30 Aug 2013 13:47:16 +0000 https://www.soliforum.com/post/34689/#p34689 <![CDATA[Re: Help explaining a temperature fluctuation on extruder]]> https://www.soliforum.com/post/34685/#p34685 ronsii wrote:

Wow!!!

Has it done this more than once?

Almost like the thermistor is loose or something similar...

Yes it seems to happen every couple hours of printing.  If the machine is just sitting there with the extruder heated but no filament and no movement it does not seem to do it.  I may try retaping the thermistor to the extruder, however I'm afraid that the flexible insulation that came stock will not survive the process.  Anyone know what I can do use as an alternative or where to find the original stuff?

supraflyer wrote:

My temperature was fluctuating just like that. When the upper limit was reached it shut down on high limit. If a low limit was reached it shut down the extruder. I changed the thermistor and it did not help. When I re calibrated the PID the problem went away. There are simple to follow instructions on the solidoodle WIKI. Good luck and keep up in the loop.

I have gone through the PID tuning steps and 99% of the time the temperature is super stable and accurate now, it just sometimes freaks out.

]]> Fri, 30 Aug 2013 13:38:05 +0000 https://www.soliforum.com/post/34685/#p34685 <![CDATA[Re: Help explaining a temperature fluctuation on extruder]]> https://www.soliforum.com/post/34671/#p34671 My temperature was fluctuating just like that. When the upper limit was reached it shut down on high limit. If a low limit was reached it shut down the extruder. I changed the thermistor and it did not help. When I re calibrated the PID the problem went away. There are simple to follow instructions on the solidoodle WIKI. Good luck and keep up in the loop.

]]> Fri, 30 Aug 2013 08:42:53 +0000 https://www.soliforum.com/post/34671/#p34671 <![CDATA[Re: Help explaining a temperature fluctuation on extruder]]> https://www.soliforum.com/post/34670/#p34670 My temperature was fluctuating just like that. When the upper limit was reached it shut down on high limit. If a low limit was reached it shut down the extruder. I changed the thermistor and it did not help. When I re calibrated the PID the problem went away. There are simple to follow instructions on the solidoodle WIKI. Good luck and keep up in the loop.

]]> Fri, 30 Aug 2013 08:42:26 +0000 https://www.soliforum.com/post/34670/#p34670 <![CDATA[Re: Help explaining a temperature fluctuation on extruder]]> https://www.soliforum.com/post/34656/#p34656 Wow!!!

Has it done this more than once?

Almost like the thermistor is loose or something similar...

]]> Fri, 30 Aug 2013 03:43:53 +0000 https://www.soliforum.com/post/34656/#p34656 <![CDATA[Help explaining a temperature fluctuation on extruder]]> https://www.soliforum.com/post/34605/#p34605 A picture is worth a 1000 words so..... 

I feel like this is a thermistor problem, but I am unsure how to prove it

]]> Thu, 29 Aug 2013 19:20:56 +0000 https://www.soliforum.com/post/34605/#p34605