FullControl GCODE Designer is an interesting academic research project developing a purely parametric system for generating 3D printed models (as opposed to traditional 3D modeling software). FullControl is led by Andy Gleadall, a lecturer at Loughborough University. Gleadall’s LinkedIn feed has been quite interesting to follow.
For posterity, a copy of Gleadall’s overview paper can be found here:
His solution uses Microsoft Excel as the front end and two example files are available to download on Github.