Gaunce was placed on waivers by the Bruins on Friday for the purpose of assignment to AHL Providence.
Gaunce made 25 regular-season appearances with the Blue Jackets last year and recorded two goals, four assists, 44 hits, 21 blocked shots and 12 PIM while averaging 11:54 of ice time. He signed a one-year, two-way contract with the Bruins during the offseason and will begin the year in the minors if he clears waivers.