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3D CAD Software for Modeling and Simulation

Inventor® Professional mechanical design and 3D CAD software includes: freeform, direct, and parametric modeling options; design automation tools; and advanced simulation and visualization tools.

Interoperability enhancements- Revit AnyCAD

New improvements mean the Revit project can be accessed from a local file or Changes during the design process are inevitable. When the Revit model changes, you’ll need to update the Inventor model to suit so now any changes to the Revit project will also update inside the Inventor assembly for you.

Dark Theme Preview

Inventor 2021 includes a preview of the new Dark theme. This update touches all aspects of the user interface, including color scheme, icons, display color or background, manipulators, and ground plane.

Command UI and Productivity Enhancements

Property panels continue to expand to more areas of Inventor. You can now use the streamlined property panel workflow in Bend, Coil, Combine, Copy Object, Decal, Delete Face, Split, Thicken/Offset, and all frame generator commands.

Performance and Productivity Improvements

Experience quicker times for component selections and filtering, visibility changes and saved views and improvements in inserting sub assemblies.

CAD import export support additions

This release now supports export of software interpretable semantic Product Manufacturing Information (PMI).Support is added for Parasolid version 32 import as well as updates for Solid Edge, SolidWorks, and Unigraphics formats.

Multimonitor support
Multi-monitor support

You can use a single Inventor session in multiple windows and with multiple monitors.

View native Inventor
Read only mode

Inventor Read-only Mode allows you to access Inventor part (.ipt), assembly (.iam), drawing (.idw, dwg), and presentation (.ipn) files for viewing in the Inventor user interface without consuming a license.

AnyCAD Inventor
AnyCAD for Fusion 360

AnyCAD for Fusion 360, which was released in 2018.2 as a Tech Preview, is now fully released as a feature for Inventor and Fusion 360 subscribers.


 Unwrap Improvements

The Unwrap command is further enhanced this release by choosing to align the results with the Model, or the XY, XZ, YZ planes. You can also select multiple planar holes to be Rigid.

Part level enhancements

New improvements have been made for sheet metal, multi-body parts and 3D annotations, reducing time and effort in your workflow.

Extrude taper option
Extrude taper and Loop & Region Detection

When using the taper option with adjacent regions, the operation merges the faces to create a single, unified result.
Identifying and selecting loops and regions is significantly enhanced.

Solid sweep
Solid Sweep

Sweep a Tool body Along a Path. You can use solid sweep to create complex shapes, simulate toolpaths, or to design timing screws. The tool body is not required to be a revolved or cylindrical body.

Relationships enhancement
Other enhancements

These include relationships enhancement, content center and migration enhancements.


 New  Category filters

New category filters in the properties panel enables you to streamline your selection, and Presets help you save your most frequently used frame settings to use again later. 

Naming Improvements

A new option lets you set the file name of the component to be the same as the display name in the browser, enabling you more detailed control of your naming schemes .

End Cap
Insert End Cap Command

Use the new Insert End Cap command to close structural frame members. You can set the position, thickness, specify the profile shape, other properties.

Miter property panel

The Miter command is now a property panel. In the new panel, you do not need to select an option to miter multiple members at the same time.

In canvas manipulators
In-canvas manipulators

You can now interact with in-canvas manipulators when you insert or change a frame member.


Ilogic Improvements

This released has improved the ability for iLogic to add dimensions, notes, and balloons from labeled features, with added support to change styles to suit your customer or to batch edit styles to aid CAD standard compliance.

Sheet format flat pattern support

Sheet formats now support flat patterns for sheet metal parts and Parts List for assemblies, all automatically populated. View layouts saved as sheet formats now retain view settings such as edge display, and we have included a new ‘Fit views to sheet’ option to automatically scale your views.

Measure and Rotated Dimensions commands

By popular request, the Measure command has returned in the drawing environment enabling you to take measurements from the drawing without creating additional annotations.The new ‘Rotated’ option in the Dimension command enables you to align a dimension perpendicular to a selected edge.

Display Style and Automated centerlines

This release adapts the line style with more options that provide finer control of the appearance of BOM Reference parts, and adds new button for the automated centerline command. Inventor to detect diameter dimensions for side views or section views when you select parallel geometry.


Auto Route improvements

The new Apply button when you use the Auto-Route option lets you stay in the command to create the next route. Handy when needing to create more than one route in an assembly.

File Naming additions

Improvements to file naming for Tube and Pipe designs have been made with this release to add to continuity of the parts and assemblies.

enhancements for assemblies

Changes made in this release include enhancing the file naming dialog, adding a “Save State” status column to saving files and extending functionality of shaft component generator to bolted connections.

Product design and modeling

Shape Generator

You specify the function while Inventor creates the perfect form.

Parametric modeling

Focus on the design, not the interface.

Assembly modeling

Put it all together, in fewer steps.

Drawing creation

Quickly create clear and detailed drawings.

Flexible modeling

Use freeform, direct, or parametric modeling.

Direct modeling

Quickly make edits.

Freeform modeling

Take a fluid approach toward modeling.

Mechanical concept and layout design

Start with AutoCAD, finish in Inventor.

Plastic parts design

Form, fit, function, and manufacturability of plastic parts.

Sheet metal design

Design complex sheet metal products.

Design Automation

Automated product configuration

Product configurators without complex programming.

Part and assembly design automation

Automate common part and feature variations.

Component generators and calculators

Design more accurately with calculators and component generators.

Automated frame design

Quickly design and test structural frames.

Electromechanical design

Link your Inventor and AutoCAD Electrical data.

Automated tube and pipe design

Get precise hose, tube and pipe runs.

Interoperability and CAD Collaboration

Work with non-native data

Maintain an associative link to non-native CAD data.

BIM interoperability

Get your products designed-in.

Printed circuit board (PCB) interoperability

Combine your PCB and mechanical designs.

Data management

Use a file manager made just for engineers.

Cloud-based 3D design reviews

Share views of your design in the cloud.

3D PDF export

Create 3D documentation that anyone can open.

Simulation and Visualisation

Dynamic simulation

Conduct advanced motion studies of your design.

Stress analysis

Evaluate design decisions as you make them.

Visualisation and rendering

Create photorealistic renderings of your product.

Exploded views and animations

Expose all the parts inside your design.

Inventor 2021 System Requirements

Operating System

  • 64-bit Microsoft® Windows® 10
  • 64-bit Microsoft Windows 7 SP1 with Update KB4019990

CPU Type 1

3.0 GHz or greater, 4 or more cores

2.5 GHz or greater


32 GB RAM or more

16 GB RAM for less than 500 part assemblies

Disk Space

Installer plus full installation: 40 GB


4 GB GPU with 106 GB/S Bandwidth and DirectX 11 compliant

1 GB GPU with 29 GB/S Bandwidth and DirectX 11 compliant

See the Certified Hardware

Display Resolution

Recommended scaling: 3840 x 2160 (4K); Preferred scaling: 100%, 125%, 150% or 200%.

Minimum: 1280 x 1024 or higher.

Pointing device

MS-Mouse compliant (3DConnexion 3D Mouse optional)

Productivity: 3DConnexion SpaceMouse®, driver version 10.5.12 or later


Internet connection for web install with Autodesk® Desktop App, Autodesk® collaboration functionality, web downloads, and licensing.

Network license manager supports Windows Server® 2016, 2012, 2012 R2, 2008 R2 and the operating systems listed above.


Full local install of Microsoft® Excel 2016 (build 16.0.4519.1000) or later for workflows that create and edit spreadsheets. Inventor workflows that read or export spreadsheet data do not require Microsoft® Excel.

64-bit Microsoft Office is required to export Access 2007, dBase IV, Text and CSV formats.

Office 365 subscribers must ensure they have a local installation of Microsoft Excel.

Windows Excel Starter®, OpenOffice®, and browser-based Office 365 applications are not supported.


Google Chrome or equivalent

.NET Framework

.NET Framework Version 4.8 or later. Windows Updates enabled for installation.

For Complex Models, Complex Mold Assemblies, and Large Assemblies (typically more than 1,000 parts)

CPU Type1

3.30 GHz or greater, 4 or more cores


24 GB RAM or greater


4 GB GPU with 106 GB/S Bandwidth and DirectX 11 compliant

See the Certified Hardware


  1. Autodesk® Inventor® is optimized to take advantage of the SSE2 extended instruction sets supported on Pentium 4, AMD Athlon 64, and AMD Opteron processors. Inventor 2020 will not install on computers that do not support SSE2. Several utilities are available on the Internet that report CPUID including supported instructions sets.
  2. Autodesk recommends settings which allow Microsoft Windows to manage virtual memory as needed. There should always be at least twice as much free hard disk space as system memory (RAM).


Next Steps

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