While accessing the parameter value from the inventor, it returns three places of decimal. But I need more precise value. Can any body tell how to get more precise value.

You can buy CAD software directly from the official websites of the software developers, through authorized resellers, or from major software retailers. For free software, downloads are available from the official project websites.

To learn computer-aided design (CAD) software, you should first choose a program based on your goals, then follow a structured path of learning fundamentals, practicing with projects, and utilizing the many online resources available.

To download computer-aided design (CAD) software, you must first choose a program that fits your needs and budget. Options range from industry-standard paid software like AutoCAD and SOLIDWORKS to free or browser-based tools suitable for beginners.

• Step 1: Choose a CAD program
• Step 2: Download the software
• Step 3: Install and start using the software

Five major disadvantages of computer-aided design (CAD) include high initial costs, a steep learning curve, hardware and software dependency, data security risks, and software incompatibility issues.

• High initial costs

The investment required for CAD can be substantial, especially for small businesses or individual users.

• Steep learning curve

Learning and mastering CAD software can be a time-consuming and challenging process.

• Dependency on technology

Because CAD is entirely dependent on hardware and software, technical problems can cause major disruptions to workflows.

• Data security risks

CAD files often contain sensitive intellectual property, which makes them vulnerable to cyber threats.

• File incompatibility

Different CAD programs use proprietary or different file formats, which can create collaboration issues.

For beginners in 2025, free CAD tools like Tinkercad (for 3D modeling), LibreCAD (for 2D drafting), and Fusion 360 for Personal Use (for versatile 3D modeling and simulation) offer a good starting point.