Copan Lite, for Windows desktop/netbook, is a functional and easy-to-use tool for computing and managing plane land survey coordinates. It does coordinate geometry (COGO) calculations, processes and adjusts raw field survey data, computes and adjusts map traverse data, performs map checks, calculates areas and perimeters, performs coordinate transformations, and imports/exports Ascii files. It's completely free!
Ashampoo 3D CAD Professional
Ashampoo 3D CAD PRO offers a high quality solution for CAD users with professional requirements.
LITIO - 3D Sheet metal unfolder
Sheet metal for AutoCAD. It calculates flat (unfolded) sheet development of ducts, rectangle to ound transitions, cylinders, cones, intersections, connections, bifurcations, elbows, etc. For HVAC, hoppers, cyclones, ducts, silos, piping, etc.
Vectorizer. Transforms raster images into a vector format. Raster drawing can be imported by scanning original paper drawings. The target vector formats are understood by most common CAD programs that use vector graphics (AutoCAD, Corel Draw etc.).
Copan Lite enables you to calculate coordinate geometry (COGO), process field surveys, adjust map traverses, perform map/deed closure checks, calculate areas and perimeters, transform coordinates, and import/export Ascii files. It's free.
BOM4CAD 2004 - Automatic numbering
BOM4CAD 2004 is an AutoCAD 2004, 2005 and 2006 application for automatic numbering in the drawing with number annotations. It can create annotations build with leader entity and unique sequence number either in decimal, alpha or roman number style.