Temperature dropping out (Page 1 of 3)

No chart attached.  But if you are still getting a temp reading then your thermistor is probably fine.  Perhaps you broke a heater wire, or it came detached at the head or the connection to the board.  It could also break at the clip near the extruder motor.  Just a thought.

Thinking about it, there was only one thing that I did differently in the firmware upgrade.  I did not change the 2 to a 3 in the first step because I have a solid doodle 2.  Is this actually a version thing? Should I have changed it anyway?

Yes, I upgraded to an E3d.  I did change the max temp to 350 but it looks like it might not have taken.

Oh man, here I go again.  So frustrating because I am so close.  This thing is working perfectly for four minutes and then jsut shuts off.  This is what is in the window when it cuts out:

15:59:32.521 : N4288 G1 X86.727 Y101.72 E11.56283 *71
15:59:32.586 : N4289 G1 X84.831 Y102.112 E11.69733 *122
15:59:32.754 : echo:enqueing "M104 S0"
15:59:32.754 : echo:Extruder Heaters De-activated

I did double check and reflash the firmware again jsut to be absoultely freaking sur there were no issues.

I am stumped

Tried doing that manually and it heats to about 31C and shuts down like before.

If I run a job it will heat up to temp but not through the manual interface.

I will pull the whole thing apart and check the thermistor wiring ... again.

Pulled the thermistor out and indeed it looks as though the blue tubing got hiked up as I put it into the hole.  So I am going to need to find a way to pull those blue shields back down.

Pulled the thermistor out, cut the wires, turned the blue shielding around and made sure as I put it into the hole that the shielding stayed.  Put it all back together, started a print and it failed at about the exact same time.

So close

Mostly, but I didn't have a problem with heating the extruder before so if it is the wiring then I have to assume that it is my wiring.

When I first got it I had to go through and redo a bunch of wiring because there were connections missing all over the place but I did get those fixed.

Edit: Just spent the better part of an hour checking all of the wiring, the thermistor, etc.  It has to be something in the software.

+1

I've been a little busy to respond. I bet a dollar it is bad thermistor wiring. I went through 3 in the last year from my horrid wiring and it did the same. If it was able to heat up initially, then drop off during the job, it is a flaw somewhere between the thermistor or the plug to the board. If there is a loss of signal (frayed/severed line), you would get a short as elmoret stated.

From my experience, it is exceptionally easy to manhandle the thermistor to the point of a state of uselessness.