If Bricsys “RHINOworks” is discontinued (losing parametric and constraint-based modeling), is there ANYTHING WORKABLE that replaces it ? Bare Grasshopper is NOT a workable option, and BONGO’s “unique” approach to constraints is well, just as unworkable.
Not Rhino based, but there is a very nice, and simple opensource application called Solve space.
It exports DXF, STP, SVG, and STL. http://solvespace.com
Maybe the opensource license allows that it can be code into a Rhino plugin ?