The OBJ (Wavefront) format is one of the most universal and oldest 3D formats, supported by virtually all 3D modeling software. Converting OBJ to STL lets you prepare your models for 3D printing with any slicer.
Launch Eyemesh and open your OBJ file: drag and drop the file into the window, or use File > Open (Cmd+O). Make sure the .mtl file and associated textures are in the same folder as the .obj file. Open the full folder so Eyemesh loads materials automatically.
Inspect your model in the 3D view. Check that textures and materials display correctly. If textures are missing, use the Texture Manager to reassign them manually.
Click the export icon in the toolbar, select the STL format, choose a save location, and confirm. The STL file is ready to open in your slicer for 3D printing.
OBJ (Wavefront) is an open format for describing 3D geometry. It stores vertices, faces, normals, and UV coordinates. Materials are defined in an associated .mtl file, with textures stored as separate image files. Its simplicity makes it a universal exchange format, though it does not support animations.
STL (Stereolithography) is the standard format for 3D printing. It describes only the surface geometry as a triangulated mesh, with no color or texture. Compatible with all slicers (Cura, PrusaSlicer, BambuStudio, OrcaSlicer), it is the most common format for additive manufacturing.
Download Eyemesh on the Mac App Store and convert your OBJ files to STL in just a few clicks.