Hi, As shown in the attached pics.... I have a 3D printed part (cylinder or post of sorts) that slides and fits into a metal instrument holder. The metal is unknown, probably pot metal. The "instrument holder" is like a yoke or "Y", where the neck or head of the instrument fits into it. The instrument holder part is commercial. This specific size instrument holder is designed for, and will hold a violin (five pounds or less) QUESTION: What would be the best glue, or epoxy to glue this in place? Thanks AJ