Draws chain sprockets. Includes geometric calculations to ensure smooth engagement between the teeth and the chain.

Powerful spreadsheet app to batch edit attributes of blocks across multiple drawings.

Powerful spreadsheet app to batch edit attributes of blocks across multiple drawings.

You can insert text bubbles to lines, curves, or draw leaders with it, or quickly make a schedule from text bubbles and/or other blocks.

JTB XClipClean is an Xclip-cutter app for Autodesk® AutoCAD® to clean up xrefs or blocks that have been clipped so that the information that is outside the clip is removed.

JTB XClipClean is an Xclip-cutter app for Autodesk® AutoCAD® to clean up xrefs or blocks that have been clipped so that the information that is outside the clip is removed.

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.

BlockApps adds four very powerful Block name management commands to Autodesk® AutoCAD®: DDBlkAdd, DDBlkCas, DDBlkF&R, and DDBlkRen

Virtual Tablet Navigator (VTN) is an add-on AutoLISP application using DCL to bring Autodesk® AutoCAD® physical Tablet Menu commands virtually onto the graphics screen.

LayerApps contains seven very useful Layer Applications for Autodesk® AutoCAD®: DDLyrAdd, DDLyrCas, DDLyrF&R, DDLyrOn, DDLyrTh, DDLyrVpC & DDLyrDes.

DDSetup provides a graphic user interface to select the drawing units, drawing scale, sheet size orientation to space in model & paper space.

DDList is Autodesk® AutoCAD® basic list command but on steroids.

DDCalc is an on screen graphical calculator within Autodesk® AutoCAD® that supports feet, inch & fractional numeric entries.

Area Object Link (AOL) is an AutoLISP app that implements a GUI to link Circles, Ellipses, Hatches, Plines or Regions' Area/Perimeter value to an Attribute that can be used to generate a Summary Table

TextApps contains six very useful Text Applications: DDAttMod, DDTxtJus, DDTxtMed, DDTxtPed, DDTxtBrk, and DDTxtMrg. In addition, included are Bonus Commands: DDEColor, DDLColor & DDOColor.

VpScale Apps offers two very useful Viewport Scaling Applications: DDZmVpSc & DDSetVpSc

Steel2K™ Structural Shapes include W-shapes, channels, single/double angles, square & rectangular tubing, pipes, M, S, HP shapes, and tees as listed in the Steel Manual.

SteelPLUS™ Structural Shapes 2D/3D includes W-Shapes, Channels, Single/Double Angles, Square & Rectangular Tubing, Pipes, M, S, HP Shapes, and Tees as listed in the AISC / CISC Steel Manual.

Joist2K2D Steel Joist & Girder Series module includes the K, VS, LH and DLH Series and Joist Girders 2D Version. Easily create a wall section with a partial bar joist to the right or left side.

"GLTF Exporter for Autodesk® AutoCAD®” exports the model to a glTF (.glTF) and GLB (.GLB) file.

Generate 3D Handrail Model and BOM table with detail dimensions of pipe and bent pipe fitting.

Tools to unfold 3D paper model

Fix scribe texts in steel plate dxf files.