Topic: print head stopped workign
i just finished up a print last night after cleaning out a clog in the nozzel
then after i started it for a new print thehot end is now not heating
sigh
stopped andrestarted the printer so now i'm out of my depth
Re: print head stopped workign
Join the club.
SD3, E3D hotend,linear bearing on x/y axis',pillow block bearing on y conneting rod, ball bearngs on front y axis, fan on y stepper motor.
Re: print head stopped workign
Check for 12V at the connector to the heater with the heater turned on in the software. If you see 12V, disconnect then heater connector and check the resistance across the heater. If it's open you have a dead resistor. I was in the same position you were. Looking back, I should have gone out and bought a new resistor and replaced myself. There are several threads that tell you exactly how to do it.
Good luck,
TiM
- pilate7004
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Re: print head stopped workign
This happened to me too. I pulled the extruder apart before realising that was unnecessary. Just remove the hot end insulation and you can get to the heater fairly easily. Mine is the newer type with the solid resistor. It's either that or nichrome wire wrapped around the threaded brass pipe with thermal clay around it. The resistor was easy enough to replace. You just have to make sure that you crimp the wires as well as solder them, because it is all going to get hot and you don't want to be relying on the solder for strength, only for conductivity. Bend both wires into hooks, hook them together and squeeze them with pliers. Solder then reassemble.
5 2013-03-18 04:29:08 (edited by Manx 2013-03-18 05:34:58)
Re: print head stopped workign
mr_tim34 wrote:
Check for 12V at the connector to the heater with the heater turned on in the software. If you see 12V, disconnect then heater connector and check the resistance across the heater. If it's open you have a dead resistor. I was in the same position you were. Looking back, I should have gone out and bought a new resistor and replaced myself. There are several threads that tell you exactly how to do it.
Good luck,
TiM
i don't know how to do that i just picked up a multi tester
ok i git atester and think i tested it correctly but nothign came up well i checked both of the wires the blue set cameup as4.93 and the other was 0.00
Re: print head stopped workign
Me too, it was the new SD hot end, and only a couple of months old. Fortunatley, I had a spare... Seems to be a few failures on the go...
Re: print head stopped workign
The blue set is the thermister, 4.93 is probably fine it's value will change with the temperature. If you're reading zero across the red connector then the resistor they use as a heater has died. This seems to be the current problem people are having these days.
TiM
Re: print head stopped workign
mr_tim34 wrote:
The blue set is the thermister, 4.93 is probably fine it's value will change with the temperature. If you're reading zero across the red connector then the resistor they use as a heater has died. This seems to be the current problem people are having these days.
TiM
It looks like he's set to voltage. If you're seeing 0 volts on the wires that run to the main circuit board, with the heater on in RH/printerface, then either the motherboard has failed or the wiring.
To confirm: set the meter/tester to resistance, and measure the two wires going into the hotend. If it's >8 ohms, then the hotend has failed.
Re: print head stopped workign
I opulled up a video and learned i was checking the wrong spot 12.75 volts so i called solidoodle today they sent me an authorization to send back the hot end (grumble ) it shouldn't break after a month and a half but i'll be orderign some spare parts soon
10 2013-03-18 22:00:40 (edited by satman49 2013-03-18 22:02:31)
Re: print head stopped workign
Your lucky it lasted that long, only 16 days and my hotend failed.BYW how did you Call them?
SD3, E3D hotend,linear bearing on x/y axis',pillow block bearing on y conneting rod, ball bearngs on front y axis, fan on y stepper motor.