diff --git a/examples/multithreaded/README.md b/examples/multithreaded/README.md
index 16ed638f9b..2d7912b12c 100644
--- a/examples/multithreaded/README.md
+++ b/examples/multithreaded/README.md
@@ -95,12 +95,12 @@ This test results in the following numbers (on my AMD Ryzen5 8/16-core laptop):
 [comment]:RESULTS
 
 <b>VERSION:</b> 5.0.0
-<b>BUILD MODE:</b> Release
+<b>BUILD MODE:</b> Debug
 
-<u><b>SERIAL RESULTS:</b></u><br/>runtime, overall = 4241.3ms<br/>single runtimes = (176.7 +/- 319.6) ms<br/>speedup = 1.00x<br/>threads / available = 1 / 16<br/><br/><br/>  
+<u><b>SERIAL RESULTS:</b></u><br/>runtime, overall = 31006.5ms<br/>single runtimes = (1291.2 +/- 2643.4) ms<br/>speedup = 1.00x<br/>threads / available = 1 / 16<br/><br/><br/>  
 
 <u><b>PARALLEL RESULTS:</b></u><br/>
-runtime, overall = 1025.3ms<br/>single runtimes = (325.0 +/- 15.0) ms<br/>speedup = 7.61x<br/>threads / available = 8 / 16<br/>batch runs = 3<br/><br/><b>speedup vs. serial = 4.1x</b>
+runtime, overall = 9779.0ms<br/>single runtimes = (2961.1 +/- 921.5) ms<br/>speedup = 7.27x<br/>threads / available = 8 / 16<br/>batch runs = 3<br/><br/><b>speedup vs. serial = 3.2x</b>
 
 [comment]:RESULTS_END
 
diff --git a/lib/jkqtplotter/jkqtpcoordinateaxes.cpp b/lib/jkqtplotter/jkqtpcoordinateaxes.cpp
index aafd9b5634..f8b815b518 100644
--- a/lib/jkqtplotter/jkqtpcoordinateaxes.cpp
+++ b/lib/jkqtplotter/jkqtpcoordinateaxes.cpp
@@ -2141,6 +2141,40 @@ double JKQTPVerticalIndependentAxis::parentOtherAxisX2P(double /*x*/) const
     return qQNaN();
 }
 
+void JKQTPVerticalIndependentAxis::drawAxes(JKQTPEnhancedPainter &painter, int move1, int move2)
+{
+    JKQTPVerticalAxisBase::drawAxes(painter,move1,move2);
+    painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
+    const QPen pmain=axisStyle.getAxisPen(painter, parent);
+    const bool isSecondAxis=isSecondaryAxis();
+    // correct move1,move2 for the length of inside ticks for secondary axes
+    double moveForTicks1=0, moveForTicks2=0;
+    if (isSecondAxis && axisStyle.drawMode1.testFlag(JKQTPCADMTicks)) moveForTicks1=qMax(axisStyle.minorTickInsideLength,axisStyle.tickInsideLength);
+    if (isSecondAxis && axisStyle.drawMode2.testFlag(JKQTPCADMTicks)) moveForTicks2=qMax(axisStyle.minorTickInsideLength,axisStyle.tickInsideLength);
+    // determine pixel coordinates of important positions
+    double top=x2p(axismax);
+    double bottom=x2p(axismin);
+    double left=0;
+    double right=0;
+    if (inverted) {
+        qSwap(top, bottom);
+    }
+    if (getParentOtheraxisInverted()) {
+        left=getParentOtheraxisOffset()-getParentOtheraxisWidth();//;
+        right=getParentOtheraxisOffset();//;
+    } else {
+        left=getParentOtheraxisOffset();//;
+        right=getParentOtheraxisOffset()+getParentOtheraxisWidth();//;
+    }
+    // move axes outside plot rectangle, if required
+    left-=parent->pt2px(painter, axisStyle.axisLineOffset)+move1+moveForTicks1;
+    right+=parent->pt2px(painter, axisStyle.axisLineOffset)+move2+moveForTicks2;
+
+    painter.setPen(pmain);
+    painter.drawLine(QLineF(left,top,right,top));
+    painter.drawLine(QLineF(left,bottom,right,bottom));
+}
+
 
 
 
@@ -2937,3 +2971,39 @@ double JKQTPHorizontalIndependentAxis::parentOtherAxisX2P(double /*x*/) const
 {
     return qQNaN();
 }
+
+
+void JKQTPHorizontalIndependentAxis::drawAxes(JKQTPEnhancedPainter &painter, int move1, int move2)
+{
+    JKQTPHorizontalAxisBase::drawAxes(painter,move1,move2);
+    painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
+    const QPen pmain=axisStyle.getAxisPen(painter, parent);
+    const bool isSecondAxis=isSecondaryAxis();
+    // correct move1,move2 for the length of inside ticks for secondary axes
+    double moveForTicks1=0, moveForTicks2=0;
+    if (isSecondAxis && axisStyle.drawMode1.testFlag(JKQTPCADMTicks)) moveForTicks1=qMax(axisStyle.minorTickInsideLength,axisStyle.tickInsideLength);
+    if (isSecondAxis && axisStyle.drawMode2.testFlag(JKQTPCADMTicks)) moveForTicks2=qMax(axisStyle.minorTickInsideLength,axisStyle.tickInsideLength);
+    // determine pixel coordinates of important positions
+    // determine pixel coordinates of important positions
+    double right=x2p(axismax);
+    double left=x2p(axismin);
+    double bottom=0;
+    double top=0;
+    if (inverted) {
+        qSwap(left, right);
+    }
+    if (getParentOtheraxisInverted()) {
+        top=getParentOtheraxisOffset()-getParentOtheraxisWidth();//;
+        bottom=getParentOtheraxisOffset();//;
+    } else {
+        top=getParentOtheraxisOffset();//;
+        bottom=getParentOtheraxisOffset()+getParentOtheraxisWidth();//;
+    }
+    // move axes outside plot rectangle, if required
+    top-=parent->pt2px(painter, axisStyle.axisLineOffset)+move2+moveForTicks2;
+    bottom+=parent->pt2px(painter, axisStyle.axisLineOffset)+move1+moveForTicks1;
+
+    painter.setPen(pmain);
+    painter.drawLine(QLineF(left,top,left,bottom));
+    painter.drawLine(QLineF(right,top,right,bottom));
+}
diff --git a/lib/jkqtplotter/jkqtpcoordinateaxes.h b/lib/jkqtplotter/jkqtpcoordinateaxes.h
index 0daefbe14f..74bb5de954 100644
--- a/lib/jkqtplotter/jkqtpcoordinateaxes.h
+++ b/lib/jkqtplotter/jkqtpcoordinateaxes.h
@@ -1072,6 +1072,10 @@ class JKQTPLOTTER_LIB_EXPORT JKQTPVerticalIndependentAxis: public JKQTPVerticalA
         virtual double getParentOtheraxisOffset() const override;
         /** copydoc JKQTPCoordinateAxis::parentOtherAxisX2P() */
         virtual double parentOtherAxisX2P(double x) const override;
+
+        /** copydoc JKQTPCoordinateAxis::drawAxes() */
+        virtual void drawAxes(JKQTPEnhancedPainter& painter, int move1=0, int move2=0) override;
+
     public Q_SLOTS:
         /** \brief set the axis offset */
         virtual void setAxisOffset(double __value) ;
@@ -1255,6 +1259,8 @@ class JKQTPLOTTER_LIB_EXPORT JKQTPHorizontalIndependentAxis: public JKQTPHorizon
         virtual double getParentOtheraxisOffset() const override;
         /** copydoc JKQTPCoordinateAxis::parentOtherAxisX2P() */
         virtual double parentOtherAxisX2P(double x) const override;
+        /** copydoc JKQTPCoordinateAxis::drawAxes() */
+        virtual void drawAxes(JKQTPEnhancedPainter& painter, int move1=0, int move2=0) override;
     public Q_SLOTS:
         /** \brief set the axis offset */
         virtual void setAxisOffset(double __value);