diff --git a/boxes/generators/flexbox4.py b/boxes/generators/flexbox4.py
new file mode 100644
index 0000000..8ed6d9d
--- /dev/null
+++ b/boxes/generators/flexbox4.py
@@ -0,0 +1,100 @@
+#!/usr/bin/python3
+# Copyright (C) 2013-2014 Florian Festi
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from boxes import *
+import math
+
+class FlexBox(Boxes):
+    """Box with living hinge and left corners rounded"""
+    def __init__(self):
+        Boxes.__init__(self)
+        self.buildArgParser("x", "y", "h")
+        self.argparser.add_argument(
+            "--radius",  action="store", type=float, default=15,
+            help="Radius of the corners in mm")
+        
+    @restore
+    def flexBoxSide(self, x, y, r, callback=None):
+        self.cc(callback, 0)
+        self.edges["f"](x)
+        self.corner(90, 0)
+        self.cc(callback, 1)
+        self.edges["f"](y-r)
+        self.corner(90, r)
+        self.cc(callback, 2)
+        self.edge(x-2*r)
+        self.corner(90, r)
+        self.cc(callback, 3)
+        self.edges["e"](y-r-self.latchsize)
+        self.cc(callback, 4)
+        self.latch(self.latchsize)
+        self.corner(90)
+
+    def surroundingWall(self):
+        x, y, h, r = self.x, self.y, self.h, self.radius
+        
+        self.edges["F"](y-r, False)
+        if (x-2*r < 0.1):
+            self.edges["X"](2*self.c4, h+2*self.thickness)
+        else:
+            self.edges["X"](self.c4, h+2*self.thickness)
+            self.edge(x-2*r)
+            self.edges["X"](self.c4, h+2*self.thickness)
+        self.edge(y-r-self.latchsize)
+        self.latch(self.latchsize, False)
+        self.edge(h+2*self.thickness)
+        self.latch(self.latchsize, False, True)
+        self.edge(y-r-self.latchsize)
+        self.edge(self.c4)
+        self.edge(x-2*r)
+        self.edge(self.c4)
+        self.edges["F"](y-r)
+        self.corner(90)
+        self.edge(self.thickness)
+        self.edges["f"](h)
+        self.edge(self.thickness)
+        self.corner(90)
+
+    def render(self):
+        self.radius = self.radius or min(x, y)/2.0
+        self.c4 = c4 = math.pi * self.radius * 0.5
+        self.latchsize = 8*self.thickness
+
+        self.open()
+
+        self.fingerJointSettings = (4, 4)
+
+        self.moveTo(2*self.thickness, self.thickness)
+        self.ctx.save()
+        self.surroundingWall()
+        self.ctx.restore()
+        self.moveTo(0, self.h+4*self.thickness)
+        self.flexBoxSide(self.x, self.y, self.radius)
+        self.moveTo(2*self.x+3*self.thickness, 0)
+        self.ctx.scale(-1, 1)
+        self.flexBoxSide(self.x, self.y, self.radius)
+        self.ctx.scale(-1, 1)
+        self.moveTo(2*self.thickness,-self.thickness)
+        self.rectangularWall(self.x, self.h, edges="FeFF")
+        self.close()
+
+def main():
+    b = FlexBox()
+    b.parseArgs()
+    b.render()
+
+if __name__=="__main__":
+    main()
diff --git a/scripts/boxesserver b/scripts/boxesserver
index a5a28b2..2c09ea9 100755
--- a/scripts/boxesserver
+++ b/scripts/boxesserver
@@ -27,7 +27,8 @@ except ImportError:
 
 
 from boxes.generators import box, box2, box3, drillbox
-from boxes.generators import flexbox, flexbox2, flexbox3, flextest, folder
+from boxes.generators import flexbox, flexbox2, flexbox3, flexbox4
+from boxes.generators import flextest, folder
 from boxes.generators import magazinefile, trayinsert, traylayout, typetray, silverwarebox
 
 
@@ -81,6 +82,7 @@ class BServer:
             "FlexBox" : flexbox.FlexBox(),
             "FlexBox2" : flexbox2.FlexBox(),
             "FlexBox3" : flexbox3.FlexBox(),
+            "FlexBox4" : flexbox4.FlexBox(),
             "FlexTest": flextest.FlexTest(),
             "Folder": folder.Folder(),
             "MagazinFile" : magazinefile.Box(),