How to hollow supports 3D models fast?

To hollow 3D model supports fast, use slicer software with automatic support hollowing tools and adjust key settings like wall thickness or infill density. Slicers such as Cura or PrusaSlicer have built-in options to enable hollow supports directly in their support settings—skip manual 3D modeling edits. Lower infill to 5-10% or use 1-2mm walls to keep supports functional while cutting print time and material. For beginners, start with your slicer’s default hollow support settings—they’re pre-optimized for speed and strength without extra work.