A basic recursive random tree generator in 2D and 3D.

3D PDF Maker for Autodesk® AutoCAD® allows you to create interactive 3D PDF documents connecting to AutoCAD, or by processing DWG and DXF files exported from AutoCAD.

SDUCT allows you to create double line HVAC ductwork in Autodesk® AutoCAD®.

A productivity tools package for AutoCAD®, both plain and vertical applications, versions 2012 through 2020. It contains additional commands and plug-in features to increase your efficiency every day.

Background color changer for OSNAPZ.

Inserts Text Bubbles at end of lines, arcs, polylines, splines and leaders or at any other location of your choice. Renumber the text bubbles quickly as needed.

App to quickly copy a rectangular window of selected objects out from your drawing, and trim everything outside the window's edges. The result can be copied to the current drawing or to the clipboard.

App to quickly copy a rectangular window of selected objects out from your drawing, and trim everything outside the window's edges. The result can be copied to the current drawing or to the clipboard.

Batch and script utility for processing multiple Autodesk® AutoCAD® drawings.

Batch and script utility for processing multiple Autodesk® AutoCAD® drawings.

JTB Steel is an Add-in running inside Autodesk® AutoCAD®, adding powerful command features to help you draw simple and complex steelwork frames and details efficiently.

JTB Steel is an Add-in running inside Autodesk® AutoCAD®, adding powerful command features to help you draw simple and complex steelwork frames and details efficiently.

JTB Sheet Set Creator is an app for Autodesk® AutoCAD® that creates new Sheet Sets and Sheets (drawings) based on an Excel template for usage in Sheet Set Manager.

JTB Sheet Set Creator is an app for Autodesk® AutoCAD® that creates new Sheet Sets and Sheets (drawings) based on an Excel template for usage in Sheet Set Manager.

Manage drawings with many layouts more easily in a palette.

Manage drawings with many layouts more easily in a palette

Catenary is the curve of an idealized free hanging cable supported at its ends. This app provides several commands to draw this U-like shape in Autodesk® AutoCAD® utilizing different input parameters.

Morphs one polyline into another by generating intermediate polylines at arbitrary stages of the process.

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

Helps identify and select possible duplicate cogo points in a Autodesk® Civil 3D® drawing.

Base Mounted End Suction Pumps creates a wide variety of Metric 3D pumps from pump manufacturer data sheets, by imputing the Metric dimensional data for each pump dimension.

Simulate fillets on 3D polylines.

Watson6.0 by Watsonlisp.com is an artificial intelligence referencing agent written in autolisp and visual basic. Watson finds detail drawings by text and attribute content!

Changes colors of entities in a drawing to any other color.