diff --git a/.gitignore b/.gitignore
index a3eb862..9df8fa8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 *.fcstd1
 *~
+*.FCBak
diff --git a/freecad-src/Art4Body.fcstd b/freecad-src/Art4Body.fcstd
index 650e64e..1b43c98 100644
Binary files a/freecad-src/Art4Body.fcstd and b/freecad-src/Art4Body.fcstd differ
diff --git a/freecad-src/Art56SmallGear.fcstd b/freecad-src/Art56SmallGear.fcstd
index 5b43967..71d29e7 100644
Binary files a/freecad-src/Art56SmallGear.fcstd and b/freecad-src/Art56SmallGear.fcstd differ
diff --git a/freecad-src/AssemblyArt4.FCStd b/freecad-src/AssemblyArt4.FCStd
index 36d2317..4871c74 100644
Binary files a/freecad-src/AssemblyArt4.FCStd and b/freecad-src/AssemblyArt4.FCStd differ
diff --git a/freecad-src/AssemblyArt56.FCStd b/freecad-src/AssemblyArt56.FCStd
index 54be4f7..7e24074 100644
Binary files a/freecad-src/AssemblyArt56.FCStd and b/freecad-src/AssemblyArt56.FCStd differ