Do you need to manufacture sheet metal parts and patterns, like
LITIO 2.0 is a sheet metal add-on for AutoCAD, GStarCAD, ZwCAD & BricsCAD [and cadmate] that calculates and draws the flat sheet development of ducts, rectangle-to-round transitions, cylinders, cones, pipe intersections, connections, Ys, elbows, etc.
Do you want to:
LitioLAB 1.0 is an advanced, complex-shape, mathematical drawing tool for AutoCAD, GStarCAD and ZwCAD, that helps you draw complex shapes (either 2D curves, 3D curves or 3D surfaces), that are not available as standard commands within AutoCAD or GStarCAD or ZwCAD.