Topic: Temp screwed up.
This happens from time to time, and ends up killing whatever I'm trying to print.
The temp is going fine for a while, then drops to an unsafe extrusion temp, and thus skips some spots when building a part.
Any ideas?
- Brad
- Administrator
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Re: Temp screwed up.
Sometimes for no reason at all during a print, my extruder sets itself to 180C instead of 195C, then I have to manually set it back. Have no idea why this happens.
Re: Temp screwed up.
Is this only happening in Repetier? I believe the red line shows that the temp setting is getting changed. If you scan back through the log, maybe you will see some temperature command that aren't gcode. You should post this as an issue in the Repetier Github.
Re: Temp screwed up.
I was wondering why you guys manually control the temp with software instead of using a M109 command in the start gcode?
Re: Temp screwed up.
I've had my temp drop 10 degree during a print but not to a point where it would shut off to protect a cold extrude. Something to keep an eye on I guess.
Re: Temp screwed up.
Since it takes a few minutes for the extruder to heat up, I prefer to do it ahead of time. Then I can run it for a bit to get the nozzle filled with plastic and ready to go, and swipe the nozzle clean before it starts the print.
If put it in the start code and start it code, you will want to be there when the print begins to wipe off the plastic that oozed while the extruder was warming up. However you could put a piece of rubber or something on the edge of the bed that will wipe the nozzle when it move.
I prefer to do a manual extrude before a print so I can see that everything is working right. Usually when I turn the heat on manually, I will set it to the temp I am going to print at so it is ready to go when I hit the start button. A set temp in the start.gcode may not always be what you want your first layer at, especially if you switch between ABS and PLA.
Re: Temp screwed up.
In the first picture you can see that the fluctuation where I was not involved.
The red line is the measured temp, the purple is the set temp. It turned off because I killed the job and started it over.
I took off the connectors and fiddled with the wires in the connector, and my last print took around 2 hours and didn't have ANY fluctuation at all. I think it might have been a loose wire. Time will tell if I've fixed this.