Pre 1995 Drawing board
Pre 2002 approx Turbocad 2D
Pre 2010 Turbocad 3D
Pre 2011 Sketchup 8 (Google pre Trimble)
2012 to present FormZ pro which is a bit like sketchup without the need to make every object a group or component. Solids not surfaces. Wish I found it earlier but their marketing is almost non-existent.
Pre 2002 approx Turbocad 2D
Pre 2010 Turbocad 3D
Pre 2011 Sketchup 8 (Google pre Trimble)
2012 to present FormZ pro which is a bit like sketchup without the need to make every object a group or component. Solids not surfaces. Wish I found it earlier but their marketing is almost non-existent.