3D printing issu : verticale walls are not straight

[Pates22 (Patrice)]

Hi everyone,
I’m having an issue on all my 3D prints with my Bambu Lab A1. Whenever a model has a vertical wall that ends with a flat horizontal surface, the walls tend to deform/lean instead of staying straight (see photos). i trying on teh Bamabu lab A1 of a friend and i have the same problem, but my setting seems ok and I use hairspray to agood adesion and I slice with Bambu slicer.
My current settings are:
Layer height: 0.16 mm
3 walls
10% Gyroid infill
Brim at the bottom
I use standard PLA (210–240°C) and i print it at 220 degrees

I can’t seem to get perfectly straight vertical walls. Has anyone experienced this issue or have any suggestions on what I should change?

Thanks in advance!

[dougl]

Try printing at half the speed. My guess would be hotend temp isn’t keeping up with the speed or the temp is too low so there’s tension in the plastic as it’s pushed out resuting in pulling the plastic and resulting in thinner lines and low accuracy.