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Extruder switch off : MINTEMP when the wires move

Posted: Mon Sep 26, 2016 9:58 pm
by hitjacker
Hi,

I bought the Prusa i3 Pro B Acrylic, and I did few printing but I have a problem with the extruder's sensor. The temperature is ok but when the printing start, the contact with the sensor is lost with MINTEMP write on the LCD.
I try this : http://www.geeetech.com/forum/viewtopic ... 23&t=17030.
It's the case 1.2.4, but the problem comes from the wire which comes out to the extruder

Little video to show the problem : https://www.youtube.com/watch?v=Mp_pleu4r9Y

How can I solve this problem ?

Thanks

Re: Extruder switch off : MINTEMP when the wires move

Posted: Tue Sep 27, 2016 11:20 am
by William
hitjacker wrote:Hi,

I bought the Prusa i3 Pro B Acrylic, and I did few printing but I have a problem with the extruder's sensor. The temperature is ok but when the printing start, the contact with the sensor is lost with MINTEMP write on the LCD.
I try this : http://www.geeetech.com/forum/viewtopic ... 23&t=17030.
It's the case 1.2.4, but the problem comes from the wire which comes out to the extruder

Little video to show the problem : https://www.youtube.com/watch?v=Mp_pleu4r9Y

How can I solve this problem ?

Thanks
It's the connection problem.You'd better check if the thermistor on extruder has a good connection to the board.

Re: Extruder switch off : MINTEMP when the wires move

Posted: Thu Sep 29, 2016 12:53 am
by hitjacker
Indeed I think the problem is the connection, that's why I did what there are explain on the topic "How to slove the problem of MAX/MIN TEMP error(GT2560)".

The sensor is correctly connect to the board, I check some times.
I see the problem is resolve only when I move the wire which are near the extruder (I try to show that in my video).

Re: Extruder switch off : MINTEMP when the wires move

Posted: Thu Sep 29, 2016 8:49 am
by Toy
Hi,
You need to check this part, in most cases the connection problem of thermistor is due to the poor contact here
20160929084604.png
20160929084604.png (781 KiB) Viewed 11852 times

Re: Extruder switch off : MINTEMP when the wires move

Posted: Mon Oct 03, 2016 1:50 am
by hitjacker
Hi Toy,

Thanks for your help.

Indeed, the problem seem to be that : when I move the part, the contact is done.
How can I repair this ? I don't try to disassemble this, I wait your advice.

Re: Extruder switch off : MINTEMP when the wires move

Posted: Tue Oct 04, 2016 3:47 pm
by William
I think you just need to sort out the wirings and bind them together with the tape..

Re: Extruder switch off : MINTEMP when the wires move

Posted: Sat Oct 15, 2016 12:36 am
by hitjacker
Problem solved, thanks :)