Top layer quality breaks down in one corner
What is the problem here? It's printed in Prusa PLA with 0.2mm "speed" session and 10% infill. As you can see from the photo, the majority of the top layer is perfect but it just goes to pot in one corner. There doesn't seem to be any problems with the base layer or adhesion. I could slow the whole thing down or increase the infill but I don't really want to waste filament without having theory as to what is going wrong.
RE: Top layer quality breaks down in one corner
Make a picture so we can see if model is not flat.
Possible model has detached from bad(warp), and pushes the filament higher, then at the top there is no free space to print.
Big flat models use glue stick as extra sticking to bed.(and not every glue stick is good)
And clean bed with dish soap, then use glue stick, and print.
Big flat prints i use a big brim(6 or 8 lines) so model has more bed to hold on.
If pla still warps, keep wind away, cols away, you could try a higher printer temperature, and or higher bed temperature.
Every filament will behave different.
RE: Top layer quality breaks down in one corner
@peter-m26
Hi Peter, I think you might be right because on inspection of the bottom layer, it seems to have warped every so slightly away from the bed. Before you responded, I rotated the model through 90 degrees and it printed perfectly (see photo).
If ever I try and print something similar again, I will try glue as you suggest. In the past I have had very good results with a particular brand of PVA adhesive.
Thank you for responding.