N1 problem whit the fan's and the stepper motor or extruder temperature

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aldosai
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Joined: Tue Sep 19, 2017 9:24 pm

N1 problem whit the fan's and the stepper motor or extruder temperature

Postby aldosai » Tue Jan 30, 2018 6:22 pm

I put a ticket in the technical service because the printer stopped printing correctly. Describe the problem: When turning on the printer everything seems fine, charge the filament, and start printing, when you start printing the first layer does it well, in the second do not turn on the fans, even the one that should remain on always turns off and does not turn on again, after a couple of layers the stepper motor that feeds the filament begins to make noise as when the nozzle has been covered and stops printing. I have checked and the nozzle is not covered, what happens is that apparently the temperature is not enough to melt the filament, but on the screen appears as if the temperature was correct.

filament: Hatchbox silver pla.
temperature: 200°C. at 30 mm/s.

the technical service told me that there were two possibilities: the extruder board or the ribbon cable. Finally they told me to buy the extruder board, but it did not work, the problem remains the same.

Someone have idea what is the problem?

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Vicky@Raise3D
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Re: N1 problem whit the fan's and the stepper motor or extruder temperature

Postby Vicky@Raise3D » Wed Jan 31, 2018 5:03 am

For the fan problem, want to double confirm with you that both the nozzle side cooling fan and the big downward fan stop working at the second layer?
Which slicing template are you using? Would you like to share a screenshot of the fan control settings here?
3.png
3.png (4.68 KiB) Viewed 491 times

The settings here control the big downward fan.

And for the nozzle cooling fan, it should be constant-on as long as the printer gets power.

May I ask a video of the nozzle cooling fan can see how it works and stops after first layer?

aldosai
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Joined: Tue Sep 19, 2017 9:24 pm

Re: N1 problem whit the fan's and the stepper motor or extruder temperature

Postby aldosai » Fri Feb 02, 2018 10:48 pm

Thanks, Vicky. I attach the image of the configuration and the video. The fan that should always be turned on works when I turn on the printer, but when printing starts it
settings.jpg
stops and the one controlled by the gcode does not turn on at all.

aldosai
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Joined: Tue Sep 19, 2017 9:24 pm

Re: N1 problem whit the fan's and the stepper motor or extruder temperature

Postby aldosai » Fri Feb 02, 2018 10:50 pm

I tried to upload the video that I sent to the technical service here but it tells me that the format is invalid.

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Vicky@Raise3D
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Re: N1 problem whit the fan's and the stepper motor or extruder temperature

Postby Vicky@Raise3D » Mon Feb 05, 2018 3:41 am

Maybe a download link?

Jetguy
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Re: N1 problem whit the fan's and the stepper motor or extruder temperature

Postby Jetguy » Mon Feb 05, 2018 4:06 am

even the one that should remain on always turns off and does not turn on again, after a couple of layers the stepper motor that feeds the filament begins to make noise as when the nozzle has been covered and stops printing. I have checked and the nozzle is not covered, what happens is that apparently the temperature is not enough to melt the filament, but on the screen appears as if the temperature was correct.


This is exactly what I keep warning the group about. This is a ribbon cable to extruder head breakout failure mid print.
First clue is, the 12V constant on fans stop spinning. Since the ribbon cable carries that 12V power and there are no software controls on this, the obvious known failure is the ribbon cable. This is because if 12V failed at the mainboard then the LED strips would go out and mainboard fan would stop.
Second clue is the temperature report VS actual hotend temp shows a complete disconnect. Again, this is the most dangerous of all errors.

This error is not detected on the stock hardware electronics and that's why this board https://www.raise3d.com/collections/acc ... ent-sensor was created based on a modification I posted.
viewtopic.php?f=4&t=6131#p24970

aldosai
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Re: N1 problem whit the fan's and the stepper motor or extruder temperature

Postby aldosai » Wed Feb 07, 2018 5:01 pm

Thanks Jetguy and Vicky. The description of the problem that Jetguy gave is exactly what is happening, I have already bought the cable ribbon that is suggested, now the problem is that the shipments start from March according to what they told me in the sales department. That means that I must have the printer without functioning more than a month, if you can suggest that they speed up the shipments a little it would be good. Attached is the video link where you can see what Jetguy described. https://drive.google.com/open?id=1azwkj ... VgLrKAe-wx

regards

Jetguy
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Location: In a van, down by the river

Re: N1 problem whit the fan's and the stepper motor or extruder temperature

Postby Jetguy » Wed Feb 07, 2018 5:16 pm

You can fix the ribbon cable now. I don't know and Raise 3D has been tight lipped on anything to do with that safety board, how many they can provide, when, if they will sell it alone and so on.

Point being, that solves the detection of the failure and stops the printer if a failure is detected.
Provided you can repair or replace the cable, ensure you lock the connector in at the extruder head, that's no different than how the printer was shipped to you and you can pint until the safety board is shipping. Installing the safety board is somewhat independent of the repair in this case.

Also, there is likely more than enough ribbon cable length, you could just cut off the bad end and several inches of cable to reveal unflexed cable. Then simple crimp a new IDC connector in place. They are 2x7 (14 pin) standard IDC connectors https://www.amazon.com/Pc-Accessories-C ... B00Q8ENQSK
Not everyone should do this but again, I feel sharing the information if you wanted to and absolutely needed to print, this is one way of fixing the problem.

aldosai
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Joined: Tue Sep 19, 2017 9:24 pm

Re: N1 problem whit the fan's and the stepper motor or extruder temperature

Postby aldosai » Sat Feb 10, 2018 9:29 pm

Thanks for the information, Jetguy, really this information should be available to everyone in the technical information about the N series printers, especially when users are not specialists in electronics. If the technician who attended me, would have given me this option from the beginning to verify if it was the cable, the printer would already be in operation, it seems that the technical service does not know very well the operation and solution of problems of the printers, because I had to buy the extruder board first, then order the cable and because of the doubt and lack of certainty of the technician, I also bought the motion controlled board. I really appreciate your help.


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