CAD File Formats for CNC Machining
Different software programs generate specific file formats to transfer design data seamlessly into CNC systems. The integrity of CAD files directly influences the quality and accuracy of the final parts.
Below, we explore the most used file formats, their benefits, and the essential role of 2D technical drawings in the process.
STEP (Standard for the Exchange of Product Data)
Format: .step or .stp
STEP files are one of the most versatile CAD formats for CNC machining. They are designed to work across different CAD systems and provide a standardized way to transfer 3D data. STEP files store geometric data, material properties, and product structures, making them ideal for high-precision parts. On the MakerVerse platform, STEP files are the preferred file format.
JT with XT-Brep
Format: .jt
JT files offer a lightweight solution for sharing CAD data for CNC machining across industries that handle large assemblies. This format provides approximate and exact geometry for parts, ensuring manufacturers can efficiently handle complex designs and assemblies.
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Autodesk Inventor Files
Format: .ipt (part file) or .iam (assembly file)
Autodesk Inventor’s part (.ipt) and assembly (.iam) file formats are commonly used in CNC machining for their strong parametric design capabilities. These files store detailed 3D part and assembly information, allowing manufacturers to create highly accurate parts.
CATIA V5 Files
Format: .CATPart (part file), .CATProduct (assembly file)
CATIA V5 is widely used in industries like automotive and aerospace to handle large and complex assemblies. Its .CATPart and .CATProduct files are specifically tailored for precision CNC machining, making it an industry favorite for high-performance components.
SolidWorks Files
Format: .sldprt (part file), .sldasm (assembly file)
SolidWorks’ .sldprt and .sldasm files are widely used in CNC machining for their ease of use and ability to handle complex geometries. The parametric design capabilities in SolidWorks make it an ideal choice for manufacturers aiming to produce high-precision parts.
Creo Parametric Files
Format: .prt (part file), .asm (assembly file)
Creo Parametric’s .prt and .asm files are frequently used for CNC machining, especially for high-level product design and manufacturing. These files are designed for complex part creation, ensuring accuracy and detailing.
Siemens NX Files
Format: .prt (part file), .asm (assembly file)
Siemens NX supports .prt and .asm files, commonly used in the automotive and aerospace industries for CNC machining. These formats are crucial for handling highly detailed and complex designs, ensuring precision in manufacturing.
Solid Edge Files
Format: .par (part file), .asm (assembly file)
Solid Edge’s .par (part) and .asm (assembly) files are widely used for CNC machining. These CAD files allow manufacturers to work with flexible designs, modify parts during production, and ensure high-quality outputs.
The Importance of 2D Technical Drawings in CNC Machining
While 3D CAD files for CNC machining are critical for defining the overall geometry of a part, 2D technical drawings provide detailed specifications and tolerances that ensure the parts are produced exactly as needed.
These technical drawings are essential for interpreting the final product’s functionality, as they often include dimensions, material types, and machining details that might not be captured fully in 3D models.
- PDF: One of the most used formats for sharing technical drawings, PDF files help ensure that all details, such as tolerances, dimensions, and material specifications, are preserved and easily interpreted by the manufacturer. PDFs are preferred on the MakerVerse platform
- TIFF: Used for high-resolution technical drawings, the TIFF format retains intricate details and is often preferred when dimensional accuracy is critical.
The MakerVerse Advantage: Auto-Quoting for CNC Machining
Upload your CAD file and 2D technical drawing for a quick, accurate quote tailored to your project’s specifications. Our AI-powered technology helps streamline CNC machining, ensuring you can quickly move from design to production.
Using our platform, you can ensure that your CNC machining project is handled accurately and quickly, whether working with complex assemblies or detailed part designs.
