morokko-at-gh/sla_support_generator

SLA Support Generator is a Blender tool for setting up print supports on models meant for resin 3D printers. It is built entirely with Blender's Geometry Nodes rather than as a traditional add-on, so it behaves much like one of Blender's built in modifiers once you copy the node group into your file. The project exists to solve a specific annoyance: spending ten minutes manually placing supports on a model, only to redo all of that work after finding a small modeling error or when printing several near identical parts. It offers fully automatic support generation as well as manual editing, along with intermediate supports, truss connections between tall supports so they do not collapse, tree shaped supports, a skate shaped raft, and options for stacking multiple copies vertically or in mixed arrangements. To use it, you copy the support object from the provided blend file into your own project, set your target geometry in the modifier stack, and add support attachment points in edit mode. Once supports are placed, you export the model as an STL using Blender's standard export and slice it with your preferred slicing software. Because pasting the tool multiple times duplicates its geometry nodes, the author recommends duplicating an already placed copy and changing its target if you need more than one in a file. This requires Blender 5.2 LTS or later and real familiarity with Blender's navigation and modeling tools, since the project leans heavily on Blender's own functionality rather than hiding it behind a simpler interface. A preview mode lets you work with very large numbers of polygons by only showing where supports attach rather than the full generated geometry, which keeps the editor responsive on complex models. The author reports it has been physically tested by printing real parts on Elegoo resin printers. The README does not state a license, so it is not clear what usage rights apply beyond downloading and using the tool as distributed.