Full RX Buffer  

Re: Full RX Buffer

I've not noticed this Full RX Buffer error but I have seen:

Recv: Error:Line Number is not Last Line Number+1, Last Line: 84475
Recv: Resend: 84476
Recv: Error:Line Number is not Last Line Number+1, Last Line: 84475
Recv: Resend: 84476


Mine seemed to stop at random times, and when checking the terminal window i saw the above code. I noticed if I click on Pause and Resume Print in Octoprint it will continue printing.

I was never fully able to confirm what caused it, but from my testing it only ever seemed to happen when I cancel a print by canceling either on the printer or via Octoprint. It seemed like when the print is cancelled OctoPrint takes I while to catch up.

What I do now is I've set a Cancel Print Script in Octoprint to move nozzle out of the way and also to play a buzzer sound at the end. When I tested this a few times I did notice Octprint sometimes would take a few minutes for the buzzer to sound, signalling the cancel print has completed.

I think before I put this script in I would start a new print before the cancel process had stopped, which probably causes some buffering issue, but that is just a guess

Re: Full RX Buffer

There is a fault within the firmware such that the printer does not send an "ok[" when it should.

There is a work-around built into OctoPrint:

Settings/Serial Connection/Advanced Options/Simulate an additional "ok" for resend requests - put a tick in the box.

Peter