1)   Gear Factory 6
Gear Factory allows you to easily add standard or custom gears to your Drawing. The gear models created are standard AutoCAD solid models that can be added to your assembly drawing as 3D model or 2D entities.
License:Demo, $69.95 to buy Size: 753KB

2)   StreamVista-Plot 1.02
StreamVista-Plot is a GDSII viewer for Windows. View, Print, Export images.
License:Demo, $149 to buy Size: 926KB

3)   Mesh To Solid 3.0
Mesh To Solid is a software to convert a mesh into a solid. Mesh To Solid is designed to be extremely user friendly and easy to understand. Its as easy as opening a mesh file using the Open command and saving it as a solid using the Save As command.
License:Commercial, $195 to buy Size: 1605KB

4)   Pictomod3d 1.1
Pictomod3D creates textured 3D mesh models from images of real objects. It takes either a rotated scan of an object or a few images from arbitrary angles, and outputs 3D objects in Wavefront OBJ or DirectX X file format.
License:Shareware, $49 to buy Size: 954KB

5)   LITIO - 3D Sheet metal unfolding software 1.0
Sheet metal for AutoCAD. It calculates flat (unfolded) sheet development of ducts, rectangle to ound transitions, cylinders, cones, intersections, connections, bifurcations, elbows, etc. For HVAC, hoppers, cyclones, ducts, silos, piping, etc.
License:Shareware, $48 to buy Size: 519KB

6)   MicroStation Excel- {Cadig AutoTable 3 } 3.3
{ Cadig AutoTable 3.0 } is designed to import Excel spreadsheet to MicroStation and modify it with Excel at anytime. Besides, you can update table in MicroStation to synchronize it with the original Excel spreadsheet. == http://www.cadig.com ==
License:Shareware, $299 to buy Size: 1585KB

7)   2D/3D CAD Viewer: DXF DWG PLT CGM SVG 5.25
Supports: DWG, DXF, HPGL, TIFF, SVG, CGM, EMF/WMF, JPG, JPEG, GIF, PCX, BMP, etc. Print System allows you to print large drawings on multiple sheets. Clip Rectangle copies to clipboard as BMP and EMF. Export to TIFF, BMP, WMF, GIF, JPEG
License:Shareware, $99 to buy Size: 2840KB

8)   IsoMaker 2000 6
IsoMaker 2000 is a technical illustration drawing aid for AutoCAD. It converts 2D AutoCAD entities into isometric entities. Its function is to convert orthographic views into isometric views.
License:Demo, $59.95 to buy Size: 1123KB

9)   Terrain for AutoCAD 1.0
Terrain for AutoCAD is a terrain modeling plug-in for AutoCAD. This plug-in gives AutoCAD the ability to create a terrain mesh from a set of unordered points.
License:Commercial, $95 to buy Size: 1768KB

10)   AutoCAD Excel AutoTable 8.52
AutoTable is a tool for importing Excel spreadsheet and Word text into AutoCAD and MicroStation
License:Shareware, $180 to buy Size: 3316KB

1)   DipTrace 2.1
DipTrace is an advanced PCB design software application that consists of 4 modules: PCB Layout with high-class shape-based auto-router, Schematic Capture, Component and Pattern Editors that allow you to design your own component libraries.
License:Shareware, $145 to buy Size: 46817KB

2)   MITCalc - Shaft connection 1.17
Geometric designs and strength checks of shaped connections of shafts with hubs (keys, splines). Application supports Imperial and Metric units, is based on ANSI, ISO, DIN BS, JIS standards and support many 2D CAD systems
License:Shareware, $27 to buy Size: 1548KB

3)   Mini CAD Viewer 1.3
A compact Free CAD viewer. It is designed to be easy to use for the non-CAD user.It supports dwg & dxf formats.
License:Freeware, $0 to buy Size: 3983KB

4)   MITCalc - Force shaft connection 1.16
Geometric designs and strength checks of force couplings of shafts with hubs (Interference fit, clamping connection). Application supports Imperial and Metric units and is based on ANSI, ISO, DIN BS, JIS standards.
License:Shareware, $28 to buy Size: 1551KB

5)   MITCalc - Shafts Calculation 1.18
The calculation is designed for geometrical design and complex strength check of shafts. Application supports Imperial and Metric units, is based on ANSI, ISO, DIN standards and support many 2D and 3D CAD systems
License:Shareware, $27 to buy Size: 1572KB

6)   progeCAD Professional 2010 DWG CAD 10.0.2.7
AutoCAD LT compatible, high quality CAD software. Good for building architectural and engineering design. Supports PDF, SVG XML, Google Earth KML, IntelliCAD AutoLISP & DIESEL, ACIS 3D Solids modeling.
License:Shareware, $399 to buy Size: 166609KB

7)   MITCalc - Torsion Springs 1.17
Geometric and strength designs of spiral cylindrical torsion springs loaded with static or cyclic loading. Application supports Imperial and Metric units, is based on ANSI, ISO, DIN standards and support many 2D and 3D CAD systems.
License:Shareware, $27 to buy Size: 1726KB

8)   MITCalc3D for SolidWorks 1.51
This multi-language calculation package includes solutions for gearing, belt, chain, springs, beam, shaft, and many others. MITCalc support 2D and 3D CAD systems, Imperial and Metric units and many international standards (ANSI, ISO, DIN….).
License:Shareware, $119 to buy Size: 26516KB

9)   MITCalc 1.51
This multi-language calculation package includes solutions for gearing, belt, chain, springs, beam, shaft, and many others. MITCalc support 2D (and 3D) CAD systems, Imperial and Metric units and many international standards (ANSI, ISO, DIN….).
License:Shareware, $105 to buy Size: 20138KB

10)   MITCalc - Rolling Bearings Calculation II 1.15
Selection, calculation and check of rolling bearings (inch versions). Application supports Imperial and Metric units, is based on SKF, ISO, ANSI, SAE standards and support many 2D and 3D CAD systems
License:Shareware, $32 to buy Size: 2200KB