This is a cannon created for D&D boats. It is a terrain piece. I have successfully printed 22 of these cannons. They fit in 1x2 inch D&D grids. This cannon can be used for sieges and other tabletop ideas. Though, this design was specifically created and used for my D&D warship.
Pictures of successful prints can be added if required. I currently don't have easy access to them, so for now I haven't added a picture.