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HELP! - Printer is printing way to small  

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NB2020
(@nb2020)
Active Member
HELP! - Printer is printing way to small

Folks, looking for some advice - for some reason my MK3S is suddenly printing smaller by about 3mm ... I tried to print a small cover 77mmx147mm and it came out 74x144, i then downloaded the 20mm calibration cube from thingiverse and it cam out 17x17x17mm .... I then did a firmware / slicer update to bring me to 2.7.4 and 3.13.3 .. redid the print and its still happening.

Right now i have a cute orange and black paperweight 🙂

Anyone have any ideas??

 

 

Respondido : 11/06/2024 3:48 pm
Eef
 Eef
(@eef)
Reputable Member
RE: HELP! - Printer is printing way to small

Let's focus on the calibration cube: So
1: it is too small in all 3 directions X- Y - Z
  1a: an error is the same in all directions, but it is not a linear thing (in that case the error would have been larger on the bigger object)
2. it happens to more (all?) prints
3. it is not an firmware issue , or slicer issue. 

Because this is in all 3 dimensions, I do not think this is a mechanical issue. (Z-axis and Y-axis could be a belt issue, but for Z-axis this would not explain it).
I have no answer, but would search in the PrusaSlicer settings, if there is something (by accident) set to add 3mm to all.
2. As a test I would search an old G-code file, you probably have one on the SD-card, or could even download some g-code like this: https://www.printables.com/model/3162-prusa-plate/files  
Also slice the stl version and print that too. 
If both are equal, then you know the problem is not in Prusaslicer but in the printer. 
If not equal, there is a setting problem in the Prusaslicer. 

We will do what we have always done. We will find hope in the impossible.

Respondido : 11/06/2024 6:43 pm
NB2020
(@nb2020)
Active Member
Topic starter answered:
RE: HELP! - Printer is printing way to small

Yep, the cube is smaller in all directions. I'll dig out an old file and try that...watch this space

Respondido : 11/06/2024 7:08 pm
NB2020
(@nb2020)
Active Member
Topic starter answered:
RE: HELP! - Printer is printing way to small

ok, downloaded the Gcode from the link below. when i open it up in slicer it tells me the dimensions should be 91.5x19.5.... when i print it ... it comes out  88x17 so this is definitely the printer! help!!!

Respondido : 12/06/2024 4:18 pm
NB2020
(@nb2020)
Active Member
Topic starter answered:
RE: HELP! - Printer is printing way to small

just did a factory reset erasing all data and redid the wizard - no difference 🙁 I hope someone from Prusa see's this

Respondido : 12/06/2024 6:45 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: HELP! - Printer is printing way to small

Try Prusa Chat!

Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Respondido : 12/06/2024 7:08 pm
NB2020
(@nb2020)
Active Member
Topic starter answered:
RE: HELP! - Printer is printing way to small

ok all sorted 🙂

Respondido : 12/06/2024 8:02 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: HELP! - Printer is printing way to small

And the problem was... ? 🙂

Joan

 

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Respondido : 12/06/2024 11:54 pm
Eef
 Eef
(@eef)
Reputable Member
RE: HELP! - Printer is printing way to small

And the problem was... ? 🙂

Yes, like to know too, please. 

We will do what we have always done. We will find hope in the impossible.

Respondido : 13/06/2024 7:01 am
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