diff --git a/src/OpenMesh/Core/IO/writer/OFFWriter.cc b/src/OpenMesh/Core/IO/writer/OFFWriter.cc
index 79254392..ba7edd03 100644
--- a/src/OpenMesh/Core/IO/writer/OFFWriter.cc
+++ b/src/OpenMesh/Core/IO/writer/OFFWriter.cc
@@ -100,8 +100,6 @@ write(const std::string& _filename, BaseExporter& _be, Options _opt, std::stream
     return false;
   }
 
-  out.precision(_precision);
-
   // write header line
   if (_opt.check(Options::VertexTexCoord)) out << "ST";
   if (_opt.check(Options::VertexColor) || _opt.check(Options::FaceColor))    out << "C";
@@ -111,6 +109,9 @@ write(const std::string& _filename, BaseExporter& _be, Options _opt, std::stream
   out << "\n";
 
 
+  if (!_opt.check(Options::Binary))
+    out.precision(_precision);
+
   // write to file
   bool result = (_opt.check(Options::Binary) ?
 		 write_binary(out, _be, _opt) :
@@ -146,8 +147,6 @@ write(std::ostream& _os, BaseExporter& _be, Options _opt, std::streamsize _preci
     return false;
   }
 
-  _os.precision(_precision);
-
   // write header line
   if (_opt.check(Options::VertexTexCoord)) _os << "ST";
   if (_opt.check(Options::VertexColor) || _opt.check(Options::FaceColor))    _os << "C";
@@ -156,6 +155,8 @@ write(std::ostream& _os, BaseExporter& _be, Options _opt, std::streamsize _preci
   if (_opt.check(Options::Binary)) _os << " BINARY";
   _os << "\n";
 
+  if (!_opt.check(Options::Binary))
+    _os.precision(_precision);
 
   // write to file
   bool result = (_opt.check(Options::Binary) ?
diff --git a/src/OpenMesh/Core/IO/writer/OMWriter.cc b/src/OpenMesh/Core/IO/writer/OMWriter.cc
index b1cfdd62..3d6a8943 100644
--- a/src/OpenMesh/Core/IO/writer/OMWriter.cc
+++ b/src/OpenMesh/Core/IO/writer/OMWriter.cc
@@ -91,7 +91,7 @@ _OMWriter_()
 
 bool
 _OMWriter_::write(const std::string& _filename, BaseExporter& _be,
-                   Options _opt, std::streamsize _precision) const
+                   Options _opt, std::streamsize /*_precision*/) const
 {
   // check whether exporter can give us an OpenMesh BaseKernel
   if (!_be.kernel()) return false;
@@ -104,7 +104,6 @@ _OMWriter_::write(const std::string& _filename, BaseExporter& _be,
   _opt += Options::Binary; // only binary format supported
 
   std::ofstream ofs(_filename.c_str(), std::ios::binary);
-  ofs.precision(_precision);
 
   // check if file is open
   if (!ofs.is_open())
@@ -127,10 +126,9 @@ _OMWriter_::write(const std::string& _filename, BaseExporter& _be,
 //-----------------------------------------------------------------------------
 
 bool
-_OMWriter_::write(std::ostream& _os, BaseExporter& _be, Options _opt, std::streamsize _precision) const
+_OMWriter_::write(std::ostream& _os, BaseExporter& _be, Options _opt, std::streamsize /*_precision*/) const
 {
 //   std::clog << "[OMWriter]::write( stream )\n";
-  _os.precision(_precision);
 
   // check exporter features
   if ( !check( _be, _opt ) )
diff --git a/src/OpenMesh/Core/IO/writer/PLYWriter.cc b/src/OpenMesh/Core/IO/writer/PLYWriter.cc
index 3a21e4f3..8b0490aa 100644
--- a/src/OpenMesh/Core/IO/writer/PLYWriter.cc
+++ b/src/OpenMesh/Core/IO/writer/PLYWriter.cc
@@ -115,7 +115,8 @@ write(const std::string& _filename, BaseExporter& _be, Options _opt, std::stream
     return false;
   }
 
-  out.precision(_precision);
+  if (!_opt.check(Options::Binary))
+    out.precision(_precision);
 
   // write to file
   bool result = (_opt.check(Options::Binary) ?
@@ -153,7 +154,8 @@ write(std::ostream& _os, BaseExporter& _be, Options _opt, std::streamsize _preci
     return false;
   }
 
-  _os.precision(_precision);
+  if (!_opt.check(Options::Binary))
+    _os.precision(_precision);
 
   // write to file
   bool result = (_opt.check(Options::Binary) ?
diff --git a/src/OpenMesh/Core/IO/writer/STLWriter.cc b/src/OpenMesh/Core/IO/writer/STLWriter.cc
index 556c5af9..39d1a74c 100644
--- a/src/OpenMesh/Core/IO/writer/STLWriter.cc
+++ b/src/OpenMesh/Core/IO/writer/STLWriter.cc
@@ -81,36 +81,25 @@ bool
 _STLWriter_::
 write(const std::string& _filename, BaseExporter& _be, Options _opt, std::streamsize _precision) const
 {
-  // check exporter features
-  if (!check(_be, _opt)) return false;
-
-
-  // check writer features
-  if (_opt.check(Options::VertexNormal)   ||
-      _opt.check(Options::VertexTexCoord) ||
-      _opt.check(Options::FaceColor))
-    return false;
-
-
   // binary or ascii ?
   if (_filename.rfind(".stla") != std::string::npos)
   {
     _opt -= Options::Binary;
-    return write_stla(_filename, _be, _opt);
   }
   else if (_filename.rfind(".stlb") != std::string::npos)
   {
     _opt += Options::Binary;
-    return write_stlb(_filename, _be, _opt);
-  }
-  else if (_filename.rfind(".stl") != std::string::npos)
-  {
-    return (_opt.check( Options::Binary )
-	    ? write_stlb(_filename, _be, _opt)
-	    : write_stla(_filename, _be, _opt) );
   }
 
-  return false;
+  // open file
+  std::fstream out(_filename.c_str(), (_opt.check(Options::Binary) ? std::ios_base::binary | std::ios_base::out
+                                                                   : std::ios_base::out) );
+
+  bool result = write(out, _be, _opt, _precision);
+
+  out.close();
+
+  return result;
 }
 
 //-----------------------------------------------------------------------------
@@ -129,7 +118,8 @@ write(std::ostream& _os, BaseExporter& _be, Options _opt, std::streamsize _preci
       _opt.check(Options::FaceColor))
     return false;
 
-  _os.precision(_precision);
+  if (!_opt.check(Options::Binary))
+    _os.precision(_precision);
 
   if (_opt & Options::Binary)
     return write_stlb(_os, _be, _opt);