It calculates flat (unfolded) sheet development of ducts, rectangle to round transitions, cylinders, cones, intersections, connections, Ys, elbows, etc. For HVAC, hoppers, cyclones, ducts, silos, etc.
Tetris version for Autodesk® AutoCAD®
Align and distribute objects in Autodesk® AutoCAD®.
Automatically add the diameter depth, counterbore and countersink symbols just by selecting two circles.