In the first lesson of chapter 4, Jake introduces the process of moving your CAD projects into production by understanding the different types of CAD files and which ones to use for manufacturing. He explains the differences between 2D and 3D file types, how they relate to different types of machines, and which formats work best for SendCutSend.

For 2D files, which are used for processes like laser cutting and waterjet cutting. Jake highlights four common types: DXF, DWG, SVG, and AI. Among these, DXF (Drawing Exchange Format) is the industry standard and the preferred format for SendCutSend because it’s compatible across most CAD programs.

For 3D files, he breaks them into two main categories: solids and meshes.

3D solids (like STEP files) are used for machining and milling, and they retain physical properties like density. Native CAD formats such as Fusion or SolidWorks files can also be shared directly when maintaining design history is important.

3D mesh files (like STL, OBJ, and 3MF) are typically used for additive manufacturing, such as 3D printing, since they describe only the outer shape.

What You’ll Learn:

• The difference between 2D and 3D CAD file types
• Which file types work best for laser cutting, waterjet cutting, and machining
• The meaning of native and neutral file formats
• Why DXF is the standard format for 2D manufacturing
• When to use STEP files for 3D machining
• How solid and mesh models differ and when each is used
• How to prepare your CAD files for exporting to SendCutSend