Printer just stops
Posted by Arakon
|
Printer just stops December 06, 2014 05:23AM |
Registered: 9 years ago Posts: 157 |
Hi.
I successfully printed 2 things yesterday. Among them, a 7h ABS print, no issues. Later in the evening, I started a 3h job.. at 70%, the printer simply stopped. No strange sounds, USB connection was dropped (I was printing from SD card), motors and heaters off. I was able to connect to the board right away again and control the printer via USB. It happened again on another file shortly after, then I powered down the printer completely. I was able to print something then. This morning, same thing.. printed skirt, part of the first layer, shutdown. No errors.
It's an original mendel90 kit from nophead with Melzi and his Marlin firmware version.
Can anyone help?
Edit: Just checked voltages. 12V drops down to 11.32v while heating. Is this within normal range?
This is the pronterface log, just monitoring with it as I have always done.
Edited 2 time(s). Last edit at 12/06/2014 05:32AM by Arakon.
I successfully printed 2 things yesterday. Among them, a 7h ABS print, no issues. Later in the evening, I started a 3h job.. at 70%, the printer simply stopped. No strange sounds, USB connection was dropped (I was printing from SD card), motors and heaters off. I was able to connect to the board right away again and control the printer via USB. It happened again on another file shortly after, then I powered down the printer completely. I was able to print something then. This morning, same thing.. printed skirt, part of the first layer, shutdown. No errors.
It's an original mendel90 kit from nophead with Melzi and his Marlin firmware version.
Can anyone help?
Edit: Just checked voltages. 12V drops down to 11.32v while heating. Is this within normal range?
This is the pronterface log, just monitoring with it as I have always done.
End file list File opened:armmoun.gco Size:8348879 File selected Print started at: 10:46:13 SD printing byte 155/8348879 SD printing byte 155/8348879 SD printing byte 155/8348879 SD printing byte 155/8348879 SD printing byte 155/8348879 SD printing byte 155/8348879 SD printing byte 155/8348879 SD printing byte 155/8348879 SD printing byte 155/8348879 SD printing byte 155/8348879 SD printing byte 155/8348879 SD printing byte 155/8348879 SD printing byte 155/8348879 SD printing byte 155/8348879 SD printing byte 203/8348879 SD printing byte 203/8348879 SD printing byte 203/8348879 SD printing byte 203/8348879 SD printing byte 203/8348879 SD printing byte 203/8348879 SD printing byte 203/8348879 SD printing byte 203/8348879 SD printing byte 203/8348879 SD printing byte 203/8348879 SD printing byte 203/8348879 SD printing byte 203/8348879 SD printing byte 203/8348879 SD printing byte 203/8348879 SD printing byte 757/8348879 SD printing byte 783/8348879 SD printing byte 783/8348879 SD printing byte 784/8348879 SD printing byte 908/8348879 SD printing byte 970/8348879 SD printing byte 1061/8348879 SD printing byte 1151/8348879 SD printing byte 1182/8348879 SD printing byte 1226/8348879 SD printing byte 1293/8348879 SD printing byte 1437/8348879 SD printing byte 1438/8348879 SD printing byte 1495/8348879 SD printing byte 1582/8348879 SD printing byte 1785/8348879 SD printing byte 2726/8348879 SD printing byte 4465/8348879 SD printing byte 6489/8348879 SD printing byte 8924/8348879 SD printing byte 11982/8348879 SD printing byte 11983/8348879 SD printing byte 12094/8348879 SD printing byte 14237/8348879 SD printing byte 14547/8348879 SD printing byte 14799/8348879 [ERROR] Can't read from printer (disconnected?) (SerialException): call to ClearCommError failed [ERROR] Can't write to printer (disconnected?) (SerialException): WriteFile failed ([Error 5] Access is denied.) [ERROR] Can't write to printer (disconnected?) (SerialException): WriteFile failed ([Error 5] Access is denied.) [ERROR] Can't write to printer (disconnected?) (SerialException): WriteFile failed ([Error 5] Access is denied.) [ERROR] Can't write to printer (disconnected?) (SerialException): WriteFile failed ([Error 5] Access is denied.) [ERROR] Disconnecting after 4 failed writes. Disconnected. Connecting... Printer is now online.
Edited 2 time(s). Last edit at 12/06/2014 05:32AM by Arakon.
|
Re: Printer just stops December 06, 2014 05:47AM |
Admin Registered: 17 years ago Posts: 7,879 |
Have you got the auto reset jumper fitted? If so remove it so USB disconnects don't reset the Melzi.
Yes 11.32V is probably in the normal range but check that the ground and power terminals on the Melzi are very tight. A low 12V won't stop the print, but a bad ground connection will cause a USB disconnect.
Edited 1 time(s). Last edit at 12/06/2014 05:49AM by nophead.
[www.hydraraptor.blogspot.com]
Yes 11.32V is probably in the normal range but check that the ground and power terminals on the Melzi are very tight. A low 12V won't stop the print, but a bad ground connection will cause a USB disconnect.
Edited 1 time(s). Last edit at 12/06/2014 05:49AM by nophead.
[www.hydraraptor.blogspot.com]
|
Re: Printer just stops December 06, 2014 05:50AM |
Registered: 9 years ago Posts: 157 |
Nope, the jumper isn't set.
The terminals were actually a little loose.. is it possible that they come loose from heating/cooling/vibration? All of them took a good 1-2 turns to tighten fully again, bed, heater, etc.
Voltage seems to have risen to 11.6v now, so it may have been a contact issue indeed.
Any means to keep the screws from wiggling loose? I don't want to overtighten them to the point of tearing through the plastic.
Edit: Seems that was indeed the issue, 5h print went through fine.
Edited 1 time(s). Last edit at 12/06/2014 12:09PM by Arakon.
The terminals were actually a little loose.. is it possible that they come loose from heating/cooling/vibration? All of them took a good 1-2 turns to tighten fully again, bed, heater, etc.
Voltage seems to have risen to 11.6v now, so it may have been a contact issue indeed.
Any means to keep the screws from wiggling loose? I don't want to overtighten them to the point of tearing through the plastic.
Edit: Seems that was indeed the issue, 5h print went through fine.
Edited 1 time(s). Last edit at 12/06/2014 12:09PM by Arakon.
|
Re: Printer just stops December 14, 2014 06:35AM |
Admin Registered: 17 years ago Posts: 7,879 |
Perhaps too much solder on the wires so it compressed or not tight enough to start with. I haven't had one work loose in years of machine time. I hold the plastic bit with one hand while tightening them, so as not to stress the PCB connection.
[www.hydraraptor.blogspot.com]
[www.hydraraptor.blogspot.com]
Sorry, only registered users may post in this forum.