DWGsync is a .NET utility for synchronized zoom/pan of multiple DWGs.

Lisp allowing to continue drawing Polyline, 2D polyline, 3D Polyline, MultiLine or Line starting from the selected end.

Extends picked end of an object (or last segment) to the picked destination point in the direction parallel to the object.

Steel Stairs 3D easily creates an unlimited variety of Industrial Steel Stairs in 3D solids. The completed stair is made into a block for easy placement and rotation.

PVC 2D Piping System creates a variety of PVC Schedule 40 Pipe and Fittings for easy placement in the 2D PVC piping drawing. Includes 117 flanged and socket valves.

Pumps3D combines all three pumps - Base Mounted End Suction, Horizontal, Split Case, and Vertical In-Line - in one App. Individual Apps for each pump may be purchased separately.

Pumps3D combines all three pumps - Base Mounted End Suction, Horizontal, Split Case, and Vertical In-Line - in one App. Individual Apps for each pump may be purchased separately.

Pumps2D combines all three pumps, Base Mounted End Suction, Horizontal, Split Case, and Vertical In-Line all in one App. Individual Apps for each pump may be purchased separately.

The FacetCurve plugin can be used to facet 2D and 3D curves in AutoCAD® to approximate their curvature with a number of straight line segments. The faceted output is in the form of a number of lines

Many AutoCAD® users have reference files set up in World coordinates. Attaching such files when in a different User Coordinate System (UCS) can result in the contents appearing at incorrect locations.

The XrefStates plugin can be used to simplify the use of multiple Externally Referenced drawings inside Autodesk® AutoCAD®.

Professional and Dynamic Fire Fighting Grooved and Threaded Program.

Import and Insert HVAC blocks to current drawing with respect to the selected scale.

No Hub 3D Piping System inserts pipe and fittings in three different 3D views, Plan, Turned Up, and Turned Down.

Dynamic and Generic Cable Tray Program.

Draft pipes & fittings of a Fire Fighting System professionally and dynamically.

Create Flexible HVAC Ducts dynamically.

Iron Valves 2D allows the user to easily place valves in various 2D views by selecting one of the toggles on the dialog. Also these valves are realistic looking.

Drafting drainage systems dynamically and professionally.

Drafting PPR Pipes & Fittings of Water Supply System Professionally and Dynamically ( Imperial & Metric ).

Create and Distribute HVAC Diffusers

Connect from Diffuser or Grill to HVAC Duct.

SV Hub & Spigot 3D Piping System inserts pipe and fittings in three different 3D views - Plan, Turned Up, and Turned Down.

Copper Valves 2D allows the user to place a valve in Plan (side) View, Top View, and End View. Also these valves are realistic looking.