G-code command was too long and did not fit in the internal buffers.
 
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[Solved] G-code command was too long and did not fit in the internal buffers.  

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ChuckT
(@chuckt)
Member
G-code command was too long and did not fit in the internal buffers.

I receive this message a lot as of late "G-code command was too long and did not fit in the internal buffer."   When I open the QR code it takes be to the Prusa site, but no further.  I have checked that the printer is properly recognized in the printer selection of Prusa slice (MK4s).  I can't seem to determine what is missing.  Is there a solution already available that I haven't found?  

Posted : 29/12/2024 5:32 pm
lettuces
(@lettuces)
Active Member
RE: G-code command was too long and did not fit in the internal buffers.

Are you using PrusaSlicer? If you are this might be a more of a Prusa Support question.

Posted : 01/01/2025 6:39 am
m_a_s
(@m_a_s)
Member
RE: G-code command was too long and did not fit in the internal buffers.

I just got this error myself.  And, yes, the QR code only takes me to the Prusa store site.

Posted : 03/02/2025 4:54 am
cmh
 cmh
(@cmh-2)
Active Member
RE: G-code command was too long and did not fit in the internal buffers.

I got this error as well but coming from OrcaSlicer (my eval of using it with my Prusa printers isn't going so great so far) and found the QR code redirects to the wrong place as well. Searched online and found... this. 😆

Posted : 17/04/2025 1:45 pm
Agrs
 Agrs
(@agrs)
Member
RISPONDI: G-code command was too long and did not fit in the internal buffers.

I ran into this when attempting to print a calibration test on my MK4S.

In my case it was because Orca Slicer writes the following gcode line:

<code>EXCLUDE_OBJECT_DEFINE NAME=Orca-PA-Calibration-Test CENTER=0,0 POLYGON=[[25,25],[225,25],[225,185],[25,185],[25,25]]</code>

This exceeds the maximum internal buffer size for a gcode line (96 chars). However this line is unused for this type of printer, so the easiest fix is to just disable "Label Objects" and "Exclude Objects" as these are not used anyway:

 

Hope this helps

 

Posted : 23/04/2025 6:25 pm
2 people liked
Antimix
(@antimix)
Honorable Member
RE: G-code command was too long and did not fit in the internal buffers.

It looks like you are trying to print KLIPPER gcode flavour instead of Marlin2-PRUSA.

I can't find any reference in the PRUSA documentation that MK4S supports the KLIPPER directive EXCLUDE_OBJECT_DEFINE NAME
So OrcaSlicer should not emit any GCODE command that is not supported by your MK4S printer.

To fix this you need to go in OrcaSlicer and ensure that the g-code flavor in your Mk4S printer is: Marlin 2

Then reslice the object, and no KLIPPER commands will be put into the GCODE for MK4S.

Regards

Posted : 25/04/2025 7:47 pm
1 people liked
cmyk
 cmyk
(@cmyk)
Member
RE: G-code command was too long and did not fit in the internal buffers.

Nope. I had Marlin2 selected. Still gives the error.
Turning off Label Objects and Exclude Objects gets rid of it.

Posted : 26/06/2025 8:28 am
Green Joe
(@green-joe)
Eminent Member
RE: G-code command was too long and did not fit in the internal buffers.

It happened to me because of a comment that was too long explaining some custom code. 

I split up the comment into 2 lines so that it was shorter than 94 characters and the problem stopped.

Posted : 12/09/2025 12:29 am
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