Casting
This Katana was 3D-modeled with blender, then 3D-printed using my FDM-printer and lastly painted with spray-cans and by hand.
It’s from an anime called “Demon Slayer” and wielded by Giyu Tomioka.
3D-printing and post-processing
References
The 3D-model was split into 3D-printable parts
              
              
            The blade was "welded" together using a soldering iron
              
              
            After a few coats of primer and sanding in-between
              
              
            Pre-assembly of the first version (the guard was too small on this version)
              
              
            The blades after a black base-coat was applied (I made a second blade just in case)
              
              
            All of the small parts before priming
              
              
            The wrapping on the handle was done using paracord and a technique called "Tsukamaki"
              
              
            Pre-assembly of the new guard
Final Product