"3D printing" is actually a 2-dimensional process which, step by step, grows along the z axis. This type of printing (defined as "non-planar") is a true 3D printing since the extrusion also takes place in z. Using special slicers, I personally created tiles with a non-planar covering (as shown in the thirth video); this type of printing is very risky due to possible collisions with the print head, so I am only sharing simple files generated on fullcontrol.xyz.
These files have all been tested on both BambuLab X1C and P1P, but in any case I do not take any responsibility in case of problems.
Nonplanar flower
Pin-support challange
Custom Non-planar 3D printing made via modded Slic3r - Too dangerous to share
Look the last images to chose your favourite test.
Download the attached .zip files, extract .gcodes, copy them to the printer's SD card and start.
If you have any doubts, ask in the comments.
All the prints are for PLA with a 0.4 mm nozzle
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.