LRailplan is a professional railway route design software. It is an all-in-one solution for the integrated process of railway alignment design, enabling you to design with skill and ease.

BackToCAD Publisher is a stand-alone converter that allows the CAD user to convert hundreds of DWG/DXF, ACIS (SAT), PRC files into 2D PDF, 3D PDF, and PRC (3D PDF or CAD Input).

A simple 2D maze generation app. Can also be used to generate random hatch patterns.

Simple command line interface for adding/removing Autodesk® Civil 3D® Cogo points to/from a point group.

Draws markers at user-selected locations along Autodesk® Civil 3D® Alignments, Profile Views, Sample Lines, and Section Views.

Set up real-time rendering between Autodesk® AutoCAD® and Lumion, and your architectural rendering workflows will never be the same again.

Pipe Network Alignments, Profiles, and Profile Views will be generated from Excel inputs (Start structure, End structure, and Alignment name).

Convert polylines into corridors (while including property sets)

Tools to unfold a 3D paper model and create cutouts

PCC is a plugin for Autodesk® Civil 3D® that streamlines the process of checking pipeline crossings, saving valuable time and effort. It identifies soft and hard clashes during the modeling process.

A set of tools extends Autodesk® AutoCAD® standard point cloud cropping functions.

Fix scribe texts in steel plate dxf files.

Deux nouvelles commandes pour éditer Solides 3D: SOLAJUSTE supprime chevauchements sans effacer le solide coupante et SOLFRACTIONNE créera des solides 3D distinctes où les solides se chevauchent.

This command can be used to add a description for Cogo Point and create Point Group.

Lisp allows continuing drawing Polyline, 2D polyline, 3D Polyline, MultiLine, or Line starting from the selected end.

Ceethreedee Free tools for Autodesk® Civil 3D®. Batch Create stuff / extracting strings from surfaces / and more!

Corridor EZ automates road subdivision design and Civil 3D® production with specialized curb return and cul-de-sac tools, as well as output of profiles, profile views, feature lines and corridors

Dynamic parabolic curve generator in Autodesk® AutoCAD® and Autodesk® Civil 3D®.

Quick cogo point table generator.

Label multiple Alignments.

Create Corridor for all Autodesk® Civil 3D® Alignments in single click.

Powerful application for designing electrical parts of street lighting installations. It fully automates all electrotechnical calculations, computations of specifications and drawings of schemes.

It is an advanced, complex-shape, mathematical drawing tool for Autodesk® AutoCAD®, that draws complex shapes (either 2D curves, 3D curves or 3D surfaces), that are not available as AutoCAD commands

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.