Why convert JT to OBJ?
.OBJ is a plain-text polygon mesh format compatible with Blender, Cinema 4D, Unity, Unreal Engine, and most rendering and visualization tools. Converting .jt to .obj lets you bring a CAD part into those environments without a CAD license. Surface colors defined in the JT can carry over via a paired .mtl file.
How to convert JT to OBJ
CAD Assistant EASIEST
Open the .jt via File > Open or drag it into the window, then go to File > Export and select OBJ. CAD Assistant writes both a .obj mesh file and a .mtl material file.
FreeCAD OPEN-SOURCE
Open the .jt with File > Open, then go to File > Export and choose Wavefront OBJ (*.obj). Try CAD Assistant instead if FreeCAD fails on complex or high-version JT files.
About these formats
.JT
JT (Jupiter Tessellation) 3D CAD visualization file
A JT (Jupiter Tessellation) file is a compact 3D CAD model used in automotive and aerospace engineering to share and review designs without heavy native CAD software. The free way to open…
Open .JT details →
.OBJ
Wavefront OBJ (3D geometry)
An OBJ file is a 3D model in the Wavefront OBJ format - a plain-text list of vertices, faces, and surface normals. Open it free with Blender, the Microsoft 3D Viewer on Windows, or…
Open .OBJ details →Quality & what to watch
- JT files often contain multiple levels of detail (LODs); exporters typically pick the highest-resolution mesh, but verify the output in a viewer to confirm the mesh density is what you need.
- B-rep solid geometry, PMI annotations, and assembly hierarchy in the
.jtare not preserved in.obj, which is always a polygon mesh format. - For geometry that must remain editable in a CAD tool, export to STEP instead of OBJ.
Frequently asked questions
Will material colors carry over to OBJ?
.mtl file alongside the .obj, so basic surface colors defined in the JT can transfer.
