--- /dev/null
+# Add Tetrahedron
+
+from mechanic import *
+
+# add node
+n1 = mesh.AddNode(50, 10, 0)
+if n1 == 0: print("KO node addition.")
+
+# add tetrahedron
+t1 = mesh.AddVolume([n1, 38, 39, 246])
+if t1 == 0: print("KO tetrahedron addition.")
+else: print("New Tetrahedron has been added with ID ", t1)