The documentation addresses that[0]. Basically, Dune 3D uses solvespace's solver, but it can do fillets and chamfers, and has a slightly more approachable user

The documentation addresses that[0]. Basically, Dune 3D uses solvespace's solver, but it can do fillets and chamfers, and has a slightly more approachable user interface. 0: https://docs.dune3d.org/en/latest/why-another-3d-cad.html https://docs.dune3d.org/en/latest/why-another-3d-cad.html