DesignSpark Mechanical

DesignSpark Mechanical is a free 3D CAD (computer-aided design) solid modelling software application.

DesignSpark Mechanical enables users to solid model in a 3D environment and create files for use with 3D printers. Using the direct modelling approach, it allows for unlimited and frequent design changes using an intuitive set of tools. This free 3D CAD software is offered as a payment free download, but requires a one-time registration with DesignSpark.com to receive the latest community news and product promotions.

In order to create engineering drawings in the same framework, a paid subscription to the DesignSpark Creator or Engineer plan is required.

Background
DesignSpark Mechanical is based on the SpaceClaim Engineer application and is the product of a collaboration between RS Components and Ansys, Inc. An introductory brochure is available here. The goal to offer a free 3D CAD software with many features of high-end software is to engage with those such as Engineering Students or small businesses who may not require or who cannot afford premium branded 3D CAD software.

Rapid prototyping
DesignSpark Mechanical supports Rapid Prototyping through SpaceClaim's 3D direct modelling methodology using the Pull, Move, Fill and Combine tools that allow a user to interact with digital 3D objects like modelling with clay, all available in the free 3D CAD version.

3D CAD library
3D models for more than 75,000 products from the RS catalog are available for download within the software.

Subscription plans
Paid subscription plans provide additional functionality for DesignSpark Mechanical, such as Mirror tool, full support of popular file formats such as STEP, STL, IGES, DXF and DWG, and an associative drawing environment, adding many functions such as cosmetic Threading, Geometric dimensioning and tolerancing, Annotations and more.