diff --git a/EMkMachiningGeoConst.h b/EMkMachiningGeoConst.h
index 9cdb29e..efefd9b 100644
--- a/EMkMachiningGeoConst.h
+++ b/EMkMachiningGeoConst.h
@@ -39,7 +39,6 @@ static std::string MCH_CL = "CL" ;
 static std::string MCH_DBL = "DBL" ;
 static std::string MCH_HOME = "HOME" ;
 static std::string MCH_PATH = "P" ;
-static std::string MCH_FRAME = "FRAME" ;
 // Nomi di entità CL speciali
 static std::string MCH_CL_CLIMB = "CLIMB" ;
 static std::string MCH_CL_RISE = "RISE" ;