If you've been working with 3D modeling and design, you're likely familiar with file formats like OBJ and STL. OBJ files are commonly used for geometry definition in 3D rendering programs, while STL files are popular in 3D printing applications due to their support for 3D printing-specific features. But what if you need to convert an OBJ file to STL, particularly using Autodesk's 123D Make software?

123D Make is a powerful tool for creating 3D models from 2D slices, and it supports OBJ file import. However, when it comes to exporting OBJ to STL directly within 123D Make, the functionality is limited. While 123D Make provides robust options for creating and manipulating 3D models, its file export features are primarily focused on 2D cutting patterns and not on direct file format conversion.

So, what are the alternatives for exporting OBJ to STL? One option is to use a dedicated 3D modeling or CAD software that supports both OBJ and STL formats, such as Autodesk Fusion 360, Blender, or MeshLab. These programs allow you to import your OBJ file, make any necessary adjustments or modifications, and then export it as an STL file ready for 3D printing.

Another approach is to utilize online file conversion tools that specialize in converting between various 3D file formats. Websites like Convertio, AnyConv, and Online 3D Converter offer simple yet effective solutions for converting OBJ to STL and vice versa. These platforms allow you to upload your OBJ file, select STL as the output format, and download the converted file in just a few clicks.

Additionally, if you're comfortable with scripting and automation, you can explore using command-line tools like Assimp, a versatile library for 3D model processing that includes support for OBJ to STL conversion. With a bit of programming knowledge, you can build scripts or small applications to batch convert multiple OBJ files to STL or perform custom file format manipulations.

In conclusion, while 123D Make may not offer direct support for exporting OBJ to STL, there are various alternative methods for achieving this conversion. Whether through other 3D modeling software, online conversion services, or scripting tools, you can find a suitable solution to convert your OBJ files to STL for 3D printing and other applications.