Print head does not print to border P1S

P1S printer, 0.4 mm SS hot end, PLA filament of different types and manufacturers,

How to describe this? A model prints a square border, then, I want to fill the middle, but the print head only fills the middle to within about 1/4 inch all the way around.
This happens with several models from Makerlab or Online Models, models that I have printed before all different sizes, including a benchy…
I have completely uninstalled BB Studio, and re-installed latest version, just in case I changed something and not aware what…

We will probably need to see what you are doing. A benchy usually does not have a “border” to fill. Upload a .3mf of a model that prints this way so we can see your settings.

File name of one example I am trying to print:
Responsible Sign.3mf (323.7 KB)

Picture of results at start of print (Layer 1):

I hope this is what you want…
Notice that the first layer does not fill out to the edges (What I called borders) This happens on all models I try to print, On a vase model I attempted, the higher the walls of the model is printed, the worse the model gets, leaving gaps in the walls, and under extrusion. This all started 2 days ago, and at this point in time, I can not print anything. I have tried different models (a vase, a flat sign, and the benchy) using different PLA formulaes from different manufacturers (Sunlu, Creality, and even BamBu labs) -
On the vase, one thing I did noticed is that the first layer outer wall is printed with gaps, it gets worse from that point on:


This problem is a result of an incorrect pressure advance or “K” value. Bambu Studio refers to this calibration as Flow Dynamics. Basically this value determines when the flow of filament is stopped/started before the end of the travel move.

Here is the link to the wiki article about this.

2 Likes

Jon, I owe you a dinner. I don’t know how the K factor got changed, but I found it set to 0.30., instead of a stately 0.04-0.05 which is what it tested as the should be K value.

I’m gonna change my user name to id10t. (Change to all caps) In all of this, I also learned how to attach pictures!

Thanks again for all your help, I really was at the pulling out hair stage, I was up until after 1AM trying to fix this…

3 Likes

Glad you got it sorted out.

1 Like

This topic was automatically closed 2 days after the last reply. New replies are no longer allowed.