diff --git a/README.md b/README.md
index be19699..b5e4907 100644
--- a/README.md
+++ b/README.md
@@ -74,6 +74,12 @@ This command will save:
 - the footprint in `~/libs/my_lib.pretty/` folder for footprint libraries. The folder will be created if it doesn't exist.
 - the 3d models in `~/libs/my_lib.3dshapes/` folder for 3d models. The folder will be created if it doesn't exist.
 
+When you want to share your lib over different computers, it is a good idea to store the 3d model's path in the footprint file with a KiCAD path variable.
+
+```bash
+easyeda2kicad --full --lcsc_id=C2040 --output ~/libs/my_lib --3D-path-var EASYEDALIB_3D
+```
+
 You can use the option `--overwrite` to update a component symbol/footprint that is already in a Kicad library (generated by easyeda2kicad)
 
 ```bash
diff --git a/easyeda2kicad/__main__.py b/easyeda2kicad/__main__.py
index 7cca178..2d224aa 100644
--- a/easyeda2kicad/__main__.py
+++ b/easyeda2kicad/__main__.py
@@ -72,6 +72,14 @@ def get_parser() -> argparse.ArgumentParser:
         type=str,
     )
 
+    parser.add_argument(
+        "--3D-path-var",
+        required=False,
+        metavar="EASYEDALIB_3DPATH",
+        help="subsitute the 3d-models's path in the footprint by this value",
+        type=str,
+    )
+
     parser.add_argument(
         "--overwrite",
         required=False,
@@ -322,6 +330,8 @@ def main(argv: List[str] = sys.argv[1:]) -> int:
             model_3d_path = "${EASYEDA2KICAD}/easyeda2kicad.3dshapes"
         if arguments["project_relative"]:
             model_3d_path = "${KIPRJMOD}" + model_3d_path
+        if arguments["3D_path_var"]:
+            model_3d_path = f'$\u007b{arguments["3D_path_var"]}\u007d'
 
         ki_footprint.export(
             footprint_full_path=f"{footprint_path}/{footprint_filename}",