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#1 2016-05-06 19:07:54

color
Member
From: Bulgaria
Registered: 2016-03-19
Posts: 84

Lost connection with Arduino board during printing

Hi,
Build 1149
The printer finished the print job but it seems the Arduino board stopped receiving commands from the Pi during print. Unfortunately I don't have a debug file after this failure but here are the log file after restarting the printer.

2016/05/06 16:55:57.767383 {"Layer":"1","module":"SLAVE","level":"Error","msg":"Serial Communication Error EOF"}
2016/05/06 16:55:57.867669 {"Layer":"1","module":"SLAVE","level":"Error","msg":"Serial Communication Error EOF"}
2016/05/06 16:55:57.967955 {"Layer":"1","module":"SLAVE","level":"Error","msg":"Serial Communication Error EOF"}
2016/05/06 16:55:58.068234 {"Layer":"1","module":"SLAVE","level":"Error","msg":"Serial Communication Error EOF"}
2016/05/06 16:55:58.164499 {"Layer":"1","module":"SLAVE","level":"Error","msg":"Serial Communication Error write /dev/ttyACM0: input/output error"}
2016/05/06 17:01:12.845162 {"Layer":"1","module":"Printer","level":"Warning","msg":"Restarting"}
2016/05/06 17:01:23.442696 {"Layer":"1","module":"JSON","level":"Warning","msg":"Skipping db/custom-inputs.json file. stat db/custom-inputs.json: no such file or directory"}
2016/05/06 17:01:23.567437 {"Layer":"1","module":"Printer","level":"Warning","msg":"Restarting"}
2016/05/06 17:01:34.215895 {"Layer":"1","module":"JSON","level":"Warning","msg":"Skipping db/custom-inputs.json file. stat db/custom-inputs.json: no such file or directory"}
2016/05/06 17:01:34.349964 {"Layer":"1","module":"WIFI","level":"Warning","msg":"WIFI interface wlan0 detected"}

After a few restarts the printer start work normaly I don't know if this related to nanodlp or this is hardware issue?

nanodlp.debug.1758025092.zip

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#2 2016-05-07 06:33:45

Shahin
Administrator
Registered: 2016-02-17
Posts: 3,521

Re: Lost connection with Arduino board during printing

Hi,

My guess is hardware issue including cable problem.

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#3 2016-05-07 17:19:16

color
Member
From: Bulgaria
Registered: 2016-03-19
Posts: 84

Re: Lost connection with Arduino board during printing

I think I discovered the problem, the servo motor of the shutter seems defective. After disconnect it from the Arduino board everything is OK.

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