Symvol is a volume-based modeling extension for the creation of both organic and mechanical objects that are always watertight and ideal for 3D printing.
Symvol features:
Fast and dynamic form finding (dynamically change any underlying form at anytime)
Always watertight
Advanced micro-structures
Direct surface and volume deformation (by control points)
Symbolic modeling (hyper-parametrization)
Export of meshes, slices & voxels for direct fabrication