Keeping up their thrill-a-minute summer, the Bruins today announced two more signings to fill out their depth chart.

Forward Lane MacDermid, a restricted free agent, was re-signed, and journeyman defenseman Garnet Exelby was signed away from the Detroit organization.

Both players signed one-year, two-way contracts, according to the club’s press release.

MacDermid showed last season he could hold his own in the NHL during a five-game stint, which included a spirited fight with New York tough guy Mike Rupp. He’s most likely ticketed for Providence next season unless something happens to one of Boston’s fourth-line forwards. His signing leaves defenseman Matt Bartkowski as Boston’s lone remaining unsigned RFA.

Exelby hasn’t played in the NHL since 2009-10. Last season he skated in Grand Rapids of the AHL, after he played for Rockford the season before. He’s posted several seasons of 100-plus PIM and last year recorded eight fighting majors. General manager Peter Chiarelli said earlier this summer he wanted to ink a defenseman to a two-way deal, and now he has. The Bruins still look like their banking on Dougie Hamilton or Torey Krug rounding out their top six, which could be a dicey proposition for the long haul.