App for Autodesk® AutoCAD® makes it easy to create or draw a catenary curve as a polyline by specifying the start and end point and the length/immediate point/sag and optionally a diameter(width).

An app to batch change or fix file paths and names of external references in drawings. Supports Xrefs, Datalinks, Raster Images, PDFs, DWFs, and DGNs.

App for Autodesk® AutoCAD® makes it easy to create or draw a catenary curve as a polyline by specifying the start and end point and the length/immediate point/sag and optionally a diameter(width).

An app to batch change or fix file paths and names of external references in drawings. Supports Xrefs, Datalinks, Raster Images, PDFs, DWFs, and DGNs.

DWG Columns freeware shows the DWG and DXF version in Explorer columns or in file dialog boxes within Autodesk® AutoCAD® or other applications.

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

Allows changing layer color of selected multiple objects without entering layer manager.

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

Program to easily change the layer name or name of the selected block.

Set of commands for Autodesk® AutoCAD® to resize viewport, create a new one from model space, update its view and to generate its boundary.

Searches for text content given by the user and selects matching objects.

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.

Arrange is a plug-in for Autodesk® AutoCAD® for arranging objects.

Vertical In-Line Pumps Creates a wide variety of 2D pumps from pump manufacturer data sheets, by imputing the dimensional data for each pump dimension.

Vertical In-Line Pumps Metric creates a variety of 3D pumps from pump manufacturer data sheets, by inputting the dimensional data for each pump dimension.

MI150 3D App inserts Malleable Iron threaded pipes and fittings in three different 3D views: Plan, Turned Up, and Turned Down. Can be used for fire and sprinkler applications.

Skirts 3D App creates Vertical Vessel Skirts as a 3D solid.

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.

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

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.

PVC 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. Includes 117 flanged and socket valves.

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

Dynamic Wiring program

Creates 3D steel saddles for horizontal vessels.