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First error hurdle

Posted by 41southrap 
First error hurdle
December 13, 2012 08:38PM
Hi all,

Just tried to get the electronics working and have this error;

echo: External Reset
Marlin: 1.0.0 RC2
echo: Last Updated: Dec 14 2012 14:20:23 | Author: nophead
echo: Free Memory: 5603 PlannerBufferBytes: 1232
echo:Using Default settings:
: Extruder switched off. MINTEMP triggered !
Errortongue sticking out smileyrinter stopped due to errors. Fix the error and use M999 to restart!. (Temperature is reset. Set it before restarting)

Not sure what to do here. The electronics are RAMPS 1.4 and the extruder stepper is plugged in but not the thermistor or hot-end. Will that cause this error? Guess I should connect them and find out.
Re: First error hurdle
December 13, 2012 10:30PM
You need to plug in the thermosistors or disable the temp/ thermosistor setting in in marlin fimware . .someone correct me but on the top of my head change to zero "0" value . .this is good if your are testing motor functions . .or calibrating your x,y,z axis
Re: First error hurdle
December 13, 2012 10:31PM
I got that error a couple of times.

First time, my thermistor (the one that reads the temperature) wasn't connected properly.

The second time was because I had blown a few resistors, so I tried a suggestion of Vik's and built my own resistor out of nichrome wire wound around the heater block and imbedded in furnace cement. This time it was intermittent and I finally figured out htat the furnace cement hadn't dried 100%. After a few faulty goes, it heated up enough to dry completely and I haven't had a problem for a couple of months.
Re: First error hurdle
December 13, 2012 11:21PM
Alizier21 - any idea where in the code that switch is? I didn't see anything in either the configuration.h or the configuration_adv.h (could be a "man" look of course!)

Otherwise I'll wire up the head tomorrow - which needs to be done anyway.

Re: First error hurdle
December 14, 2012 03:23AM
loading marlin to ramps 1.4<< not sure how to upload video so it will show here confused smiley

The link is a video loading marlin onto ramps 1.4 . .

Just change the "1" to a "0" value for the hot end and the bed . .

Hope it helps . .
Re: First error hurdle
December 14, 2012 03:25AM
Its in config.h BTW . .smiling smiley
Re: First error hurdle
December 14, 2012 03:38AM
Just check marlin . . I>>change to "0" to disable ( not used)n config.h tab, line 78 . .

Sumptin like this:

#define TEMP_SENSOR_0 1>>> change to "0"
#define TEMP_SENSOR_1 0
#define TEMP_SENSOR_2 0
#define TEMP_SENSOR_BED 1>>>change to "0"

Note that you have to change this back to whatever your thermosistor value is
before using your hot end and heat bed . .

Github reference:

Re: First error hurdle
December 14, 2012 02:58PM
Excellent, thanks, that makes perfect sense now I look at it.
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