If you want to get a realistic result like in the first image, watch the video to see how the post processing of the 3D printed part is done.Napkin paper was used to give it texture, it was painted with acrylic paint and rust paint among others.
I have tested and printed it on my prusa i3 mk3s, and everything came out perfect, if you have any doubt or issue fell free to contact me. You can see my other 3d models on my profile.
3D Printing3D Printing is a process for making a physical object from a three-dimensional digital model, typically by laying down many successive thin layers of a material. It brings a digital object (its CAD representation) into its physical form by adding layer by layer of materials.
There are several different techniques to 3D Print an object. We will go in further details later in the Guide. 3D Printing brings two fundamental innovations: the manipulation of objects in their digital format and the manufacturing of new shapes by addition of material.