This　letter　presents　an　eighth-order　dual-mode　waveguide　filter,　fabricated　using　the　selective　laser　melting　(SLM)　technique.　The　filter　employs　four　dimpled　ellipsoid　dual-mode　resonators,　operating　at　the　fundamental　TM101　mode.　During　printing,　the　filter　can　be　mechanically　self-supported　without　any　internal　supports.　Compared　to　the　filters　employing　tuning　posts,　the　proposed　filter　is　less　sensitive　to　fabrication　errors　in　terms　of　their　impacts　on　passband　return　loss　(RL),　frequency　shift,　and　bandwidth.　The　filter　was　demonstrated　at　WR-112　band　(7-10　GHz),　with　a　measured　insertion　loss　of　0.25-0.4　dB　and　an　RL　＞15　dB　across　the　passband　of　8-8.46　GHz.