URGENT: Stuttering when printing via USB (v1.2.7)

[mrcg]

I have updated to 1.2.7.
Unfortunately all printer are failing after some while because printer is stuttering (nozzle does not move for some seconds).

In the printing terminal i can see "Display is ready" and "Display got disconnected" all the time.

PLEASE URGENTLY FIX THIS ISSUE !!!!
All this issues when printing via USB are annoying.

Send: N93602 G1 X103.216 Y161.437 E0.0707*93
Recv: Display is ready
Recv: Display got disconnected
Recv: ok
Recv: ok

Recv: Display got disconnected
Recv: ok
Send: N93646 M105*41
Recv: ok

Send: N93706 G1 X111.260 Y156.133 E0.320393
Recv: Display is ready
Recv: Display got disconnected
Recv: ok
Send: N93707 G92 E077
Recv: ok

[tsp666]

HI, just an idea, as I am having no problems even with 14 hour jobs through usb - did you ever try to print trough a raspberry with OCTOPRINT on it ? (the only way I am using USB)

Just my 2c..

[AlejandroGarcia92]

@mrcg There is a timeout between the connection screen-mainboard, but right now i don't know the cause.

[mrcg]

I am using Octoprint on Raspberry on Sigma since day one (about 2 years now) without such issues.
The issue happens sporadically after some time on dual extruder print.
I flashed back now v1.2.6 to get rid of this problem.
The issues i had and have with USB printing are really frustrating.
This basic feature should be better tested and improved.
Using ocoprint is quite common to add networking capabilities to 3d printer.

[thesec]

+1 on the request for a fix

[Prejkox]

+1 on the request for a fix

[AlejandroGarcia92]

I will investigate how to fix it. I will try to reproduce this issue, I would tell you if I can't.

[fjohannes]

Have the same issue while printing via Octoprint from a RasPi3.
Sigma R17 with 2.0.8 firmware.
@AlejandroGarcia92 any news on that?

[AlejandroGarcia92]

We didn't fix it.

[fjohannes]

Any chance this is a hardware issue I could try to modify (not firm connection, cable shielding, cable size)? Maybe permanently disconnect the LCD /add a hardware switch to turn it off?
Just for clarification: is the message related to the hardware/machine LCD?
Or rather a software problem?

[nachtbraker]

Just to add a datapoint: I’m running Octopi just fine on a RPi3b and a Sigma R17. Maybe this is can help: I have seen stuttering in the past when I first started using OctoPi. It turned out that I had the Sigma’s LCD screen set to the temperature display. That interfered with proper serial communication I guess. Nowadays I always make sure the display shows the big USB symbol and I have no problem with stuttering. Ben

…

On 12 Nov 2019, at 10:02, Alejandro Garcia ***@***.***> wrote: We didn't fix it. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#186?email_source=notifications&email_token=AG5NVWK4VT7EYDQ32V6LK2DQTJWJVA5CNFSM4ERHNNE2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEDZQYOQ#issuecomment-552799290>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AG5NVWIQJD5KY55RMHMIJJLQTJWJVANCNFSM4ERHNNEQ>.

[fjohannes]

The display on my Sigma shows the USB-Symbol ("Serial Print") by default as long as Octoprint is running a print. Maybe because of my later firmware? Which firmware are you running @nachtbraker ?

[nachtbraker]

Currently 01-2.0.7, but the stuttering I had in the past was obviously with an older version. At that point, I do not think the USB symbol was visible perhaps. The only reason I’m bringing it up is that this was a repeatable scenario in which I could trigger the stuttering. Hopefully this information helps a bit for those concerned. Ben

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On 12 Nov 2019, at 19:33, fjohannes ***@***.***> wrote: The display on my Sigma shows the USB-Symbol ("Serial Print") by default as long as Octoprint is running a print. Maybe because of my later firmware? Which firmware are you running @nachtbraker <https://github.com/nachtbraker> ? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#186?email_source=notifications&email_token=AG5NVWIWT5BGZJV3QEVNLXLQTLZJNA5CNFSM4ERHNNE2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOED3LTBQ#issuecomment-553040262>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AG5NVWNWW3YK5V2WB5MAVXLQTLZJNANCNFSM4ERHNNEQ>.