Display replica, not a weapon
The first thing worth stating plainly is what a printed katana is and is not. It is a display and cosplay prop: a blunt, lightweight replica with no edge, no point capable of penetration and no steel anywhere in it. It cannot be sharpened and it is not built to take impact. That is a feature rather than a limitation — it is what makes it appropriate to keep on a shelf in a home with visitors, to carry to a convention, and to ship without the complications that surround actual bladed articles. If you want a functional sword for cutting practice, a printed replica is emphatically the wrong purchase.
Why length changes everything
Anime swords are long, and length is the variable that most affects both price and practicality. A full-length replica of around a metre has real presence — it reads as the object rather than a model of it, and it photographs properly in cosplay. It also has to be printed in sections and joined, needs a stand to display horizontally, and requires a genuine metre of shelf or wall to live on. A shorter wall-mounted piece is cheaper, simpler and easier to place, but it never quite has the same effect. Decide where it is going to live before you decide what size to buy, because the wrong answer here is the main reason these end up in a cupboard.
Living with one
Practical care is straightforward. Keep it out of prolonged direct sunlight, which is the one real weakness of PLA and easy to plan around indoors. Support it along its length rather than leaning it in a corner, since a long thin object stored on its point will bow over months — the supplied stand exists for this reason, not just for looks. Dust with a soft dry brush rather than a damp cloth around the wrapped grip. And if there are young children in the house, treat it as you would any other long rigid object on display: mount it high or keep it on a stand rather than propped where it can be pulled down.
