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.

Search and select entities based on their property data. This plug-in provides powerful Autodesk® AutoCAD® Quick-Select functionality for Autodesk® AutoCAD® Architecture AutoCAD MEP property data.

Tools to cut 3D solid wood frames

Automatically draw window frame front view and sections.

Add-on for all Autodesk® AutoCAD® base products provided by cadconsulting. cz.

Steel3D-AISC creates structural steel shapes from the LRFD15 database as a 3D solid and can be placed as a column or beams by selecting multiple lines in 3D model space

Copy, rotate objects in an array-like way. Break purlins lines to show lappings in few clicks.

Array rebar dot over line, polyline, or arc

Productivity drafting package. Simple to use & easily configured to your office standards. Huge collection of shortcut commands & scripts. Clean-up to prepare architectural for Autodesk® AutoCAD®.

Offset 2D entities with different distances at once.

Steel Valves 3D allows the user, without having to change the UCS to easily place valves in various 3D views by selecting one of the toggles on the dialog. Very realistic looking set of valves.

Steel Valves 2D allows the user to easily place valves in various 2D views by selecting one of the toggles on the dialog. Realistic looking set of valves.

Drafting drainage systems dynamically and professionally.

The Only method to add a Wipeout Mask to Arcs, Circles, or Polylines with Arc Segments. Add a Wipeout mask to blocks using Polylines with Arcs, Circles, or Multiple Points in Autodesk® AutoCAD®.

Generates 3D model from cross-sections and unfolds it into flat pattern.

HVAC Round Duct is a quick input parametric 3D drafting program for the creation of 3D Round Duct and Fittings.

To serve searching and replacing text in the Autodesk® AutoCAD® drawing, such as a 'Find' method in AutoCAD.

This app provides a variety of functions that allow you to handle the clipboard-copied entities in the form of a toolbar for reuse and to categorize the contents by the purpose of the toolbar.

The Express Document Tab program is a utility program that makes it easy to switch between DWG drawings in Autodesk® AutoCAD®.

OCF検定に合格しているDWGとSXF形式（sfc/p21/SFZ/P2Z）への相互変換ツールです。 またCivil 3Dで出力したLandXMLに、日本独自の属性を付加し、「３次元設計データ交換標準（案）Ver.1.3」として出力します。

CMU Factory creates a wide variety of Concrete Masonry Unit Blocks in Plan view with multiple options for each end condition and face condition. Additional Apps include Quick Block and Quick Brick.

This app helps to export your drawing files' names which are of .dwg format to a text file.

Dynamic Block Distribution Program.