CyberX8/CyberX8_Themes/UserControls/PufLoaderControl.xaml

<UserControl x:Class="CyberX8_Themes.UserControls.PufLoaderControl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:CyberX8_Themes.UserControls"
             mc:Ignorable="d" Name="pufLoaderControl"
             d:DesignHeight="300" d:DesignWidth="400">
    <Viewbox Stretch="Fill">
        <Canvas Width="800" Height="600">
            <Polygon Points="0,0 0,600 800,600 800,0" Stroke="Gray" StrokeThickness="12" >
                <Polygon.Fill>
                    <LinearGradientBrush StartPoint="0,0" EndPoint="1,1">
                        <GradientStop Color="Silver" Offset="0.0" />
                        <GradientStop Color="White" Offset="0.5" />
                        <GradientStop Color="Silver" Offset="1" />
                    </LinearGradientBrush>
                </Polygon.Fill>
            </Polygon>
            <Canvas Height="310" Width="200" Canvas.Left="570" Canvas.Top="60" HorizontalAlignment="Center" VerticalAlignment="Center">
                <Canvas.RenderTransform>
                    <TransformGroup>
                        <RotateTransform Angle="{Binding ElementName=pufLoaderControl, Path=Loader1RotationPosition}" CenterX="100" CenterY="155"/>
                    </TransformGroup>
                </Canvas.RenderTransform>
                <local:LoaderControl  MouseLeftButtonUp="LoaderControl_MouseLeftButtonUp" HorizontalAlignment="Center" VerticalAlignment="Center" WaferVisibleA="{Binding ElementName=pufLoaderControl, Path=WaferVisibleA}" WaferVisibleB="{Binding ElementName=pufLoaderControl, Path=WaferVisibleB}"
                     LoaderWaferA="{Binding ElementName=pufLoaderControl, Path=LoaderWaferA}" LoaderWaferB="{Binding ElementName=pufLoaderControl, Path=LoaderWaferB}"/>

            </Canvas>

            <Canvas   Canvas.Top="40" Canvas.Left="{Binding ElementName=pufLoaderControl, Path=Puf1RotationPosition}" Height="150" Width="450" HorizontalAlignment="Left" VerticalAlignment="Center">

                <local:PufControl  PufName="PUFA"   MouseLeftButtonUp="Puf1Control_MouseLeftButtonUp" HorizontalAlignment="Center" VerticalAlignment="Top" 
                                  RobotWaferA="{Binding ElementName=pufLoaderControl, Path=Puf1WaferA}" RobotWaferB="{Binding ElementName=pufLoaderControl, Path=Puf1WaferB}"
                                  PufFlipPosition="{Binding Puf1FlipPosition}"/>

            </Canvas>

        </Canvas>
    </Viewbox>
</UserControl>