3D ContentCentral
The premium self-service catalog publishing solution for industrial component suppliers. Easily create and publish your own online CAD catalog to over one million users. Free 3D and 2D CAD models of user-contributed and supplier-certified parts, assemblies and more. 3D ContentCentral® is a free service for locating, configuring, downloading, and requesting 2D and 3D parts and assemblies, 2D blocks, library features, and macros. Join an active community of 2,328,029 CAD users who share and download user contributed and supplier-certified 2D and 3D parts & assemblies, 2D blocks, library features and macros. Explore, configure, and download free parts and assemblies for SOLIDWORKS, AutoCAD, Autodesk Inventor, Pro/Engineer, CATIA, Unigraphics, and more. Search for supplier components using part numbers, product names, descriptions, product parameters, and other application-specific criteria, or by simply browsing through an intuitive catalog interface.
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McMaster-Carr
We offer hundreds of thousands of CAD models to support your design and product needs. We offer 3-D and 2-D models in file formats compatible with most CAD applications. We use the CAD symbol to indicate 3-D models and technical drawings are available for a product or group of products. We are always looking to improve our CAD model offering, so if we don't have a model that fits your needs, please let us know how we can improve.
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Thingiverse
We need your brilliant designs. Get on a 3D modeling program and/or 3D scanner and start to create, construct, and innovate! Build something cool, useful, or just fun. Then upload the file to Thingiverse and tell us all about it. Show us what you made, the world wants to see it! 3D modeling and printing is still in its infancy. The more you share your work, the more your designs inspire others, get printed, and do awesome things. The Thingiverse community has uploaded over 2,160,050 3D models, and that number is growing every day. Check out all the incredible objects people have created, and get inspired to make your own! MakerBot's Thingiverse is a thriving design community for discovering, making, and sharing 3D printable things. As the world's largest 3D printing community, we believe that everyone should be encouraged to create and remix 3D things, no matter their technical expertise or previous experience.
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SOLIDWORKS
SOLIDWORKS is the industry-standard 3D CAD and product development solution, trusted by millions of designers and engineers worldwide. For over 30 years, SOLIDWORKS has empowered innovators to transform ideas into real, manufacturable products through intuitive modeling, simulation, and collaboration tools. The 2026 release introduces groundbreaking capabilities including AI-powered drawing automation, fastener recognition, and the AURA AI virtual companion. Integrated with the 3DEXPERIENCE platform, it enables seamless cloud collaboration and data-driven decision-making. From startups to global manufacturers, users rely on SOLIDWORKS to accelerate design cycles, improve accuracy, and reduce time to market. It’s the complete ecosystem for taking any product from concept to production.
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