This prints quickly. I made this on Tinkercad. It does not matter how much infill, because there is not much inside area. The blade needs supports, but the hilt does not. Also, the first few layers need to be at a slower speed for the blade because there is not much material touching the plate. Since the pieces are not printed attached, you do need to glue them.

Creality

Ender 3 Pro

No

Yes

.16

15

Use superglue to attach the pieces.