diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ½ x 1/README.md b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ½ x 1/README.md
index a4930ea0..7bd5c779 100644
--- a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ½ x 1/README.md	
+++ b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ½ x 1/README.md	
@@ -2,13 +2,13 @@
 
 This folder contains the 3D model of the plate wheels for ISO 606 chains simplex 1" ½ x ¾" with number of teeth ranging from z=8 to z=30.
 
-![Image](screenshot.png "Plate Wheel Simplex")
+![Image](../images/simplex_screenshot.png "Plate Wheel Simplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 
 The parameters refer to the plate wheel dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/simplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -45,7 +45,7 @@ To obtain the 3D model of the desidered plate wheel, click the spreadsheet `Data
 
 See the following image for details
 
-![Drawing](configuration.png "Configuration")
+![Drawing](../images/configuration.png "Configuration")
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ¾ x 1 ¼/README.md b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ¾ x 1 ¼/README.md
index 189c5906..2a5bc1d1 100644
--- a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ¾ x 1 ¼/README.md	
+++ b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ¾ x 1 ¼/README.md	
@@ -2,13 +2,13 @@
 
 This folder contains the 3D model of the plate wheels for ISO 606 chains simplex 1" ¾ x 1" ¼ with number of teeth ranging from z=8 to z=30.
 
-![Image](screenshot.png "Plate Wheel Simplex")
+![Image](../images/simplex_screenshot.png "Plate Wheel Simplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 
 The parameters refer to the plate wheel dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/simplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -45,7 +45,7 @@ To obtain the 3D model of the desidered plate wheel, click the spreadsheet `Data
 
 See the following image for details
 
-![Drawing](configuration.png "Configuration")
+![Drawing](../images/configuration.png "Configuration")
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ¾ x 1 ¼/configuration.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ¾ x 1 ¼/configuration.png
deleted file mode 100644
index 42cf3254..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ¾ x 1 ¼/configuration.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ¾ x 1 ¼/drawing.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ¾ x 1 ¼/drawing.png
deleted file mode 100644
index 6ac9c9af..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ¾ x 1 ¼/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ¾ x 1 ¼/screenshot.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ¾ x 1 ¼/screenshot.png
deleted file mode 100644
index e64f6cf8..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ¾ x 1 ¼/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1x17,02/README.md b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1x17,02/README.md
index 6af6a243..6219ef82 100644
--- a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1x17,02/README.md	
+++ b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1x17,02/README.md	
@@ -2,13 +2,13 @@
 
 This folder contains the 3D models of the plate wheels for ISO 606 chains simplex 1" x 17,02 with number of teeth ranging from z=8 to z=30.
 
-![Image](screenshot.png "Plate Wheel Simplex")
+![Image](../images/simplex_screenshot.png "Plate Wheel Simplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 
 The parameters refer to the plate wheel dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/simplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -45,7 +45,7 @@ To obtain the 3D model of the desidered plate wheel, click the spreadsheet `Data
 
 See the following image for details
 
-![Drawing](configuration.png "Configuration")
+![Drawing](../images/configuration.png "Configuration")
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1x17,02/configuration.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1x17,02/configuration.png
deleted file mode 100644
index 42cf3254..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1x17,02/configuration.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1x17,02/drawing.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1x17,02/drawing.png
deleted file mode 100644
index 6ac9c9af..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1x17,02/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1x17,02/screenshot.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1x17,02/screenshot.png
deleted file mode 100644
index e64f6cf8..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1x17,02/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 2 x 1 ¼/README.md b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 2 x 1 ¼/README.md
index 92d5e19a..fc70490c 100644
--- a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 2 x 1 ¼/README.md	
+++ b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 2 x 1 ¼/README.md	
@@ -2,13 +2,13 @@
 
 This folder contains the 3D models of the plate wheels for ISO 606 chains simplex 2" x 1" ¼ with number of teeth ranging from z=8 to z=30.
 
-![Image](screenshot.png "Plate Wheel Simplex")
+![Image](../images/simplex_screenshot.png "Plate Wheel Simplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 
 The parameters refer to the plate wheel dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/simplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -45,7 +45,7 @@ To obtain the 3D model of the desidered plate wheel, click the spreadsheet `Data
 
 See the following image for details
 
-![Drawing](configuration.png "Configuration")
+![Drawing](../images/configuration.png "Configuration")
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 2 x 1 ¼/configuration.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 2 x 1 ¼/configuration.png
deleted file mode 100755
index 42cf3254..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 2 x 1 ¼/configuration.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 2 x 1 ¼/drawing.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 2 x 1 ¼/drawing.png
deleted file mode 100644
index 6ac9c9af..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 2 x 1 ¼/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 2 x 1 ¼/screenshot.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 2 x 1 ¼/screenshot.png
deleted file mode 100644
index e64f6cf8..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 2 x 1 ¼/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 5x2,5/README.md b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 5x2,5/README.md
index 58565851..427d9ce3 100644
--- a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 5x2,5/README.md	
+++ b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 5x2,5/README.md	
@@ -2,13 +2,13 @@
 
 This folder contains the 3D models of the plate wheels for ISO 606 chains simplex 5 x 2,5 with number of teeth ranging from z=8 to z=50.
 
-![Image](screenshot.png "Plate Wheel Simplex")
+![Image](../images/simplex_screenshot.png "Plate Wheel Simplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 
 The parameters refer to the plate wheel dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/simplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -65,7 +65,7 @@ To obtain the 3D model of the desidered plate wheel, click the spreadsheet `Data
 
 See the following image for details
 
-![Drawing](configuration.png "Configuration")
+![Drawing](../images/configuration.png "Configuration")
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 5x2,5/configuration.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 5x2,5/configuration.png
deleted file mode 100755
index 42cf3254..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 5x2,5/configuration.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 5x2,5/drawing.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 5x2,5/drawing.png
deleted file mode 100644
index 6ac9c9af..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 5x2,5/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 5x2,5/screenshot.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 5x2,5/screenshot.png
deleted file mode 100644
index e64f6cf8..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 5x2,5/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 6x2,8/README.md b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 6x2,8/README.md
index f5d49ee8..96c1cf06 100644
--- a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 6x2,8/README.md	
+++ b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 6x2,8/README.md	
@@ -2,13 +2,13 @@
 
 This folder contains the 3D models of the plate wheels for ISO 606 chains simplex 6 x 2,8 with number of teeth ranging from z=8 to z=50.
 
-![Image](screenshot.png "Plate Wheel Simplex")
+![Image](../images/simplex_screenshot.png "Plate Wheel Simplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 
 The parameters refer to the plate wheel dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/simplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -65,7 +65,7 @@ To obtain the 3D model of the desidered plate wheel, click the spreadsheet `Data
 
 See the following image for details
 
-![Drawing](configuration.png "Configuration")
+![Drawing](../images/configuration.png "Configuration")
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 6x2,8/configuration.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 6x2,8/configuration.png
deleted file mode 100755
index 42cf3254..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 6x2,8/configuration.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 6x2,8/drawing.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 6x2,8/drawing.png
deleted file mode 100644
index 6ac9c9af..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 6x2,8/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 6x2,8/screenshot.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 6x2,8/screenshot.png
deleted file mode 100644
index e64f6cf8..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 6x2,8/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 8x3/README.md b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 8x3/README.md
index 6e094b1e..99de059b 100644
--- a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 8x3/README.md	
+++ b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 8x3/README.md	
@@ -2,13 +2,13 @@
 
 This folder contains the 3D models of the plate wheels for ISO 606 chains simplex 8 x 3 with number of teeth ranging from z=8 to z=50.
 
-![Image](screenshot.png "Plate Wheel Simplex")
+![Image](../images/simplex_screenshot.png "Plate Wheel Simplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 
 The parameters refer to the plate wheel dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/simplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -65,7 +65,7 @@ To obtain the 3D model of the desidered plate wheel, click the spreadsheet `Data
 
 See the following image for details
 
-![Drawing](configuration.png "Configuration")
+![Drawing](../images/configuration.png "Configuration")
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 8x3/configuration.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 8x3/configuration.png
deleted file mode 100755
index 42cf3254..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 8x3/configuration.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 8x3/drawing.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 8x3/drawing.png
deleted file mode 100644
index 6ac9c9af..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 8x3/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 8x3/screenshot.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 8x3/screenshot.png
deleted file mode 100644
index e64f6cf8..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 8x3/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x³⁄₁₆/README.md b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x³⁄₁₆/README.md
index ec82d5cb..ee187332 100644
--- a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x³⁄₁₆/README.md	
+++ b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x³⁄₁₆/README.md	
@@ -2,13 +2,13 @@
 
 This folder contains the 3D models of the plate wheels for ISO 606 chains simplex ½ x ³⁄₁₆ with number of teeth ranging from z=8 to z=50.
 
-![Image](screenshot.png "Plate Wheel Simplex")
+![Image](../images/simplex_screenshot.png "Plate Wheel Simplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 
 The parameters refer to the plate wheel dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/simplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -65,7 +65,7 @@ To obtain the 3D model of the desidered plate wheel, click the spreadsheet `Data
 
 See the following image for details
 
-![Drawing](configuration.png "Configuration")
+![Drawing](../images/configuration.png "Configuration")
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x³⁄₁₆/configuration.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x³⁄₁₆/configuration.png
deleted file mode 100755
index 42cf3254..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x³⁄₁₆/configuration.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x³⁄₁₆/drawing.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x³⁄₁₆/drawing.png
deleted file mode 100644
index 6ac9c9af..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x³⁄₁₆/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x³⁄₁₆/screenshot.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x³⁄₁₆/screenshot.png
deleted file mode 100644
index e64f6cf8..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x³⁄₁₆/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⁵⁄₁₆/README.md b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⁵⁄₁₆/README.md
index 0db8956a..4a451b64 100644
--- a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⁵⁄₁₆/README.md	
+++ b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⁵⁄₁₆/README.md	
@@ -2,13 +2,13 @@
 
 This folder contains the 3D models of the plate wheels for ISO 606 chains simplex ½ x ⁵⁄₁₆ with number of teeth ranging from z=8 to z=30.
 
-![Image](screenshot.png "Plate Wheel Simplex")
+![Image](../images/simplex_screenshot.png "Plate Wheel Simplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 
 The parameters refer to the plate wheel dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/simplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -45,7 +45,7 @@ To obtain the 3D model of the desidered plate wheel, click the spreadsheet `Data
 
 See the following image for details
 
-![Drawing](configuration.png "Configuration")
+![Drawing](../images/configuration.png "Configuration")
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⁵⁄₁₆/configuration.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⁵⁄₁₆/configuration.png
deleted file mode 100755
index 42cf3254..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⁵⁄₁₆/configuration.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⁵⁄₁₆/drawing.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⁵⁄₁₆/drawing.png
deleted file mode 100644
index 6ac9c9af..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⁵⁄₁₆/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⁵⁄₁₆/screenshot.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⁵⁄₁₆/screenshot.png
deleted file mode 100644
index e64f6cf8..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⁵⁄₁₆/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⅛/README.md b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⅛/README.md
index ea194b2c..ca49ca60 100644
--- a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⅛/README.md	
+++ b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⅛/README.md	
@@ -2,13 +2,13 @@
 
 This folder contains the 3D models of the plate wheels for ISO 606 chains simplex ½ x ⅛ with number of teeth ranging from z=8 to z=50.
 
-![Image](screenshot.png "Plate Wheel Simplex")
+![Image](../images/simplex_screenshot.png "Plate Wheel Simplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 
 The parameters refer to the plate wheel dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/simplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -65,7 +65,7 @@ To obtain the 3D model of the desidered plate wheel, click the spreadsheet `Data
 
 See the following image for details
 
-![Drawing](configuration.png "Configuration")
+![Drawing](../images/configuration.png "Configuration")
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⅛/configuration.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⅛/configuration.png
deleted file mode 100755
index 42cf3254..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⅛/configuration.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⅛/drawing.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⅛/drawing.png
deleted file mode 100644
index 6ac9c9af..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⅛/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⅛/screenshot.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⅛/screenshot.png
deleted file mode 100644
index e64f6cf8..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ½x⅛/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ¾x⁷⁄₁₆/README.md b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ¾x⁷⁄₁₆/README.md
index 89bf6ff9..5ddea029 100644
--- a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ¾x⁷⁄₁₆/README.md	
+++ b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ¾x⁷⁄₁₆/README.md	
@@ -2,13 +2,13 @@
 
 This folder contains the 3D models of the plate wheels for ISO 606 chains simplex ¾x⁷⁄₁₆ with number of teeth ranging from z=8 to z=30.
 
-![Image](screenshot.png "Plate Wheel Simplex")
+![Image](../images/simplex_screenshot.png "Plate Wheel Simplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 
 The parameters refer to the plate wheel dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/simplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -45,7 +45,7 @@ To obtain the 3D model of the desidered plate wheel, click the spreadsheet `Data
 
 See the following image for details
 
-![Drawing](configuration.png "Configuration")
+![Drawing](../images/configuration.png "Configuration")
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ¾x⁷⁄₁₆/configuration.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ¾x⁷⁄₁₆/configuration.png
deleted file mode 100755
index 42cf3254..00000000
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diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ¾x⁷⁄₁₆/drawing.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ¾x⁷⁄₁₆/drawing.png
deleted file mode 100644
index 6ac9c9af..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ¾x⁷⁄₁₆/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ¾x⁷⁄₁₆/screenshot.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ¾x⁷⁄₁₆/screenshot.png
deleted file mode 100644
index e64f6cf8..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ¾x⁷⁄₁₆/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅜x⁷⁄₃₂/README.md b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅜x⁷⁄₃₂/README.md
index 6125100c..863e5c33 100644
--- a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅜x⁷⁄₃₂/README.md	
+++ b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅜x⁷⁄₃₂/README.md	
@@ -2,13 +2,13 @@
 
 This folder contains the 3D models of the plate wheels for ISO 606 chains simplex ⅜ x ⁷⁄₃₂ with number of teeth ranging from z=8 to z=50.
 
-![Image](screenshot.png "Plate Wheel Simplex")
+![Image](../images/simplex_screenshot.png "Plate Wheel Simplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 
 The parameters refer to the plate wheel dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/simplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -65,7 +65,7 @@ To obtain the 3D model of the desidered plate wheel, click the spreadsheet `Data
 
 See the following image for details
 
-![Drawing](configuration.png "Configuration")
+![Drawing](../images/configuration.png "Configuration")
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅜x⁷⁄₃₂/configuration.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅜x⁷⁄₃₂/configuration.png
deleted file mode 100755
index 42cf3254..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅜x⁷⁄₃₂/configuration.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅜x⁷⁄₃₂/drawing.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅜x⁷⁄₃₂/drawing.png
deleted file mode 100644
index 6ac9c9af..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅜x⁷⁄₃₂/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅜x⁷⁄₃₂/screenshot.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅜x⁷⁄₃₂/screenshot.png
deleted file mode 100644
index e64f6cf8..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅜x⁷⁄₃₂/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅝x⅜/README.md b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅝x⅜/README.md
index fafc2a6b..b4b590bf 100644
--- a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅝x⅜/README.md	
+++ b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅝x⅜/README.md	
@@ -2,13 +2,13 @@
 
 This folder contains the 3D models of the plate wheels for ISO 606 chains simplex ⅝ x ⅜ with number of teeth ranging from z=8 to z=30.
 
-![Image](screenshot.png "Plate Wheel Simplex")
+![Image](../images/simplex_screenshot.png "Plate Wheel Simplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 
 The parameters refer to the plate wheel dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/simplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -45,7 +45,7 @@ To obtain the 3D model of the desidered plate wheel, click the spreadsheet `Data
 
 See the following image for details
 
-![Drawing](configuration.png "Configuration")
+![Drawing](../images/configuration.png "Configuration")
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅝x⅜/configuration.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅝x⅜/configuration.png
deleted file mode 100755
index 42cf3254..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅝x⅜/configuration.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅝x⅜/drawing.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅝x⅜/drawing.png
deleted file mode 100644
index 6ac9c9af..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅝x⅜/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅝x⅜/screenshot.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅝x⅜/screenshot.png
deleted file mode 100644
index e64f6cf8..00000000
Binary files a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex ⅝x⅜/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ½ x 1/configuration.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/images/configuration.png
similarity index 100%
rename from Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ½ x 1/configuration.png
rename to Mechanical Parts/Chains/Plate Wheel/ISO 606/images/configuration.png
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ½ x 1/drawing.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/images/simplex_drawing.png
similarity index 100%
rename from Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ½ x 1/drawing.png
rename to Mechanical Parts/Chains/Plate Wheel/ISO 606/images/simplex_drawing.png
diff --git a/Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ½ x 1/screenshot.png b/Mechanical Parts/Chains/Plate Wheel/ISO 606/images/simplex_screenshot.png
similarity index 100%
rename from Mechanical Parts/Chains/Plate Wheel/ISO 606/Simplex 1 ½ x 1/screenshot.png
rename to Mechanical Parts/Chains/Plate Wheel/ISO 606/images/simplex_screenshot.png
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ¼x¾/README.md b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ¼x¾/README.md
index c9580c76..a7a39bb3 100644
--- a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ¼x¾/README.md	
+++ b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ¼x¾/README.md	
@@ -2,12 +2,12 @@
 
 This folder contains the 3D models of the sprockets for ISO 606 chains duplex 1 1/4" x 3/4" with number of teeth ranging from z=8 to z=76.
 
-![Image](screenshot.png "Sprocket Duplex")
+![Image](../images/duplex_screenshot.png "Sprocket Duplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 The parameters refer to the sprocket dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/duplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -56,7 +56,7 @@ To obtain the 3D model of the desidered sprocket, click the spreadsheet `Data` i
 
 See the following image for details
 
-![Drawing](https://github.com/FreeCAD/FreeCAD-library/raw/master/Mechanical%20Parts/Chains/Plate%20Wheel/ISO%20606/Simplex%201%20½%20x%201/configuration.png)
+![Drawing](../images/configuration.png)
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ½x1/README.md b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ½x1/README.md
index 9054d55d..97cd51d0 100644
--- a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ½x1/README.md	
+++ b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ½x1/README.md	
@@ -2,12 +2,12 @@
 
 This folder contains the 3D models of the sprockets for ISO 606 chains duplex 1 1/2" x 1" with number of teeth ranging from z=8 to z=40.
 
-![Image](screenshot.png "Sprocket Duplex")
+![Image](../images/duplex_screenshot.png "Sprocket Duplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 The parameters refer to the sprocket dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/duplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -54,7 +54,7 @@ To obtain the 3D model of the desidered sprocket, click the spreadsheet `Data` i
 
 See the following image for details
 
-![Drawing](https://github.com/FreeCAD/FreeCAD-library/raw/master/Mechanical%20Parts/Chains/Plate%20Wheel/ISO%20606/Simplex%201%20½%20x%201/configuration.png)
+![Drawing](../images/configuration.png)
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ½x1/drawing.png b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ½x1/drawing.png
deleted file mode 100644
index 91803435..00000000
Binary files a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ½x1/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ½x1/screenshot.png b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ½x1/screenshot.png
deleted file mode 100644
index 56257a1a..00000000
Binary files a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ½x1/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ¾x1 ¼/README.md b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ¾x1 ¼/README.md
index 11b81b53..137470ee 100644
--- a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ¾x1 ¼/README.md	
+++ b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ¾x1 ¼/README.md	
@@ -2,12 +2,12 @@
 
 This folder contains the 3D models of the sprockets for ISO 606 chains duplex 1 3/4" x 1 1/4" with number of teeth ranging from z=8 to z=40.
 
-![Image](screenshot.png "Sprocket Duplex")
+![Image](../images/duplex_screenshot.png "Sprocket Duplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 The parameters refer to the sprocket dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/duplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -48,7 +48,7 @@ To obtain the 3D model of the desidered sprocket, click the spreadsheet `Data` i
 
 See the following image for details
 
-![Drawing](https://github.com/FreeCAD/FreeCAD-library/raw/master/Mechanical%20Parts/Chains/Plate%20Wheel/ISO%20606/Simplex%201%20½%20x%201/configuration.png)
+![Drawing](../images/configuration.png)
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ¾x1 ¼/drawing.png b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ¾x1 ¼/drawing.png
deleted file mode 100644
index 91803435..00000000
Binary files a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ¾x1 ¼/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ¾x1 ¼/screenshot.png b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ¾x1 ¼/screenshot.png
deleted file mode 100644
index 56257a1a..00000000
Binary files a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ¾x1 ¼/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1x17,02/README.md b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1x17,02/README.md
index 5ee6fd7c..2e8d49c1 100644
--- a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1x17,02/README.md	
+++ b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1x17,02/README.md	
@@ -2,12 +2,12 @@
 
 This folder contains the 3D models of the sprockets for ISO 606 chains duplex 1" x 17,02mm with number of teeth ranging from z=8 to z=95.
 
-![Image](screenshot.png "Sprocket Duplex")
+![Image](../images/duplex_screenshot.png "Sprocket Duplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 The parameters refer to the sprocket dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/duplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -59,7 +59,7 @@ To obtain the 3D model of the desidered sprocket, click the spreadsheet `Data` i
 
 See the following image for details
 
-![Drawing](https://github.com/FreeCAD/FreeCAD-library/raw/master/Mechanical%20Parts/Chains/Plate%20Wheel/ISO%20606/Simplex%201%20½%20x%201/configuration.png)
+![Drawing](../images/configuration.png)
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1x17,02/drawing.png b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1x17,02/drawing.png
deleted file mode 100644
index 91803435..00000000
Binary files a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1x17,02/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1x17,02/screenshot.png b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1x17,02/screenshot.png
deleted file mode 100644
index 56257a1a..00000000
Binary files a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1x17,02/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 2x1 ¼/README.md b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 2x1 ¼/README.md
index 5c059b28..30b69d6c 100644
--- a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 2x1 ¼/README.md	
+++ b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 2x1 ¼/README.md	
@@ -2,12 +2,12 @@
 
 This folder contains the 3D models of the sprockets for ISO 606 chains duplex 2" x 1 1/4" with number of teeth ranging from z=8 to z=30.
 
-![Image](screenshot.png "Sprocket Duplex")
+![Image](../images/duplex_screenshot.png "Sprocket Duplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 The parameters refer to the sprocket dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/duplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -43,7 +43,7 @@ To obtain the 3D model of the desidered sprocket, click the spreadsheet `Data` i
 
 See the following image for details
 
-![Drawing](https://github.com/FreeCAD/FreeCAD-library/raw/master/Mechanical%20Parts/Chains/Plate%20Wheel/ISO%20606/Simplex%201%20½%20x%201/configuration.png)
+![Drawing](../images/configuration.png)
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 2x1 ¼/drawing.png b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 2x1 ¼/drawing.png
deleted file mode 100644
index 91803435..00000000
Binary files a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 2x1 ¼/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 2x1 ¼/screenshot.png b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 2x1 ¼/screenshot.png
deleted file mode 100644
index 56257a1a..00000000
Binary files a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 2x1 ¼/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ½x⁵⁄₁₆/README.md b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ½x⁵⁄₁₆/README.md
index de105b49..ef5ee13e 100644
--- a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ½x⁵⁄₁₆/README.md	
+++ b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ½x⁵⁄₁₆/README.md	
@@ -2,12 +2,12 @@
 
 This folder contains the 3D models of the sprockets for ISO 606 chains duplex 1/2" x 5/16" with number of teeth ranging from z=8 to z=114.
 
-![Image](screenshot.png "Sprocket Duplex")
+![Image](../images/duplex_screenshot.png "Sprocket Duplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 The parameters refer to the sprocket dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/duplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -60,7 +60,7 @@ To obtain the 3D model of the desidered sprocket, click the spreadsheet `Data` i
 
 See the following image for details
 
-![Drawing](https://github.com/FreeCAD/FreeCAD-library/raw/master/Mechanical%20Parts/Chains/Plate%20Wheel/ISO%20606/Simplex%201%20½%20x%201/configuration.png)
+![Drawing](../images/configuration.png)
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ½x⁵⁄₁₆/drawing.png b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ½x⁵⁄₁₆/drawing.png
deleted file mode 100644
index 91803435..00000000
Binary files a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ½x⁵⁄₁₆/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ½x⁵⁄₁₆/screenshot.png b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ½x⁵⁄₁₆/screenshot.png
deleted file mode 100644
index 56257a1a..00000000
Binary files a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ½x⁵⁄₁₆/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ¾x⁷⁄₁₆/README.md b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ¾x⁷⁄₁₆/README.md
index b7dfb490..5b40aac1 100644
--- a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ¾x⁷⁄₁₆/README.md	
+++ b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ¾x⁷⁄₁₆/README.md	
@@ -2,12 +2,12 @@
 
 This folder contains the 3D models of the sprockets for ISO 606 chains duplex 3/4" x 7/16" with number of teeth ranging from z=8 to z=95.
 
-![Image](screenshot.png "Sprocket Duplex")
+![Image](../images/duplex_screenshot.png "Sprocket Duplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 The parameters refer to the sprocket dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/duplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -59,7 +59,7 @@ To obtain the 3D model of the desidered sprocket, click the spreadsheet `Data` i
 
 See the following image for details
 
-![Drawing](https://github.com/FreeCAD/FreeCAD-library/raw/master/Mechanical%20Parts/Chains/Plate%20Wheel/ISO%20606/Simplex%201%20½%20x%201/configuration.png)
+![Drawing](../images/configuration.png)
 
 ### Notes for developers
 If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ¾x⁷⁄₁₆/drawing.png b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ¾x⁷⁄₁₆/drawing.png
deleted file mode 100644
index 91803435..00000000
Binary files a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ¾x⁷⁄₁₆/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ¾x⁷⁄₁₆/screenshot.png b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ¾x⁷⁄₁₆/screenshot.png
deleted file mode 100644
index 56257a1a..00000000
Binary files a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ¾x⁷⁄₁₆/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ⅜x⁷⁄₃₂/README.md b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ⅜x⁷⁄₃₂/README.md
index fb8df9be..e93fc495 100644
--- a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ⅜x⁷⁄₃₂/README.md	
+++ b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ⅜x⁷⁄₃₂/README.md	
@@ -2,12 +2,12 @@
 
 This folder contains the 3D models of the sprockets for ISO 606 chains duplex 3/8" x 7/32" with number of teeth ranging from z=8 to z=114.
 
-![Image](screenshot.png "Sprocket Duplex")
+![Image](../images/duplex_screenshot.png "Sprocket Duplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 The parameters refer to the sprocket dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/duplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -60,7 +60,7 @@ To obtain the 3D model of the desidered sprocket, click the spreadsheet `Data` i
 
 See the following image for details
 
-![Drawing](https://github.com/FreeCAD/FreeCAD-library/raw/master/Mechanical%20Parts/Chains/Plate%20Wheel/ISO%20606/Simplex%201%20½%20x%201/configuration.png)
+![Drawing](../images/configuration.png)
 
 ### Notes for developers
-If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
\ No newline at end of file
+If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ⅜x⁷⁄₃₂/drawing.png b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ⅜x⁷⁄₃₂/drawing.png
deleted file mode 100644
index 91803435..00000000
Binary files a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ⅜x⁷⁄₃₂/drawing.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ⅜x⁷⁄₃₂/screenshot.png b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ⅜x⁷⁄₃₂/screenshot.png
deleted file mode 100644
index 56257a1a..00000000
Binary files a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ⅜x⁷⁄₃₂/screenshot.png and /dev/null differ
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ⅝x⅜/README.md b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ⅝x⅜/README.md
index 799e60a8..5b6e95d2 100644
--- a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ⅝x⅜/README.md	
+++ b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ⅝x⅜/README.md	
@@ -2,12 +2,12 @@
 
 This folder contains the 3D models of the sprockets for ISO 606 chains duplex 5/8" x 3/8" with number of teeth ranging from z=8 to z=114.
 
-![Image](screenshot.png "Sprocket Duplex")
+![Image](../images/duplex_screenshot.png "Sprocket Duplex")
 
 The model is parametric and the values are contained in the spreadsheet `Data`.
 The parameters refer to the sprocket dimensions as in the drawing below:
 
-![Drawing](drawing.png "Drawing")
+![Drawing](../images/duplex_drawing.png "Drawing")
 
 ### Table of dimensions in millimeters:
 
@@ -59,7 +59,7 @@ To obtain the 3D model of the desidered sprocket, click the spreadsheet `Data` i
 
 See the following image for details
 
-![Drawing](https://github.com/FreeCAD/FreeCAD-library/raw/master/Mechanical%20Parts/Chains/Plate%20Wheel/ISO%20606/Simplex%201%20½%20x%201/configuration.png)
+![Drawing](../images/configuration.png)
 
 ### Notes for developers
-If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
\ No newline at end of file
+If you add a row in the `Configuration table` of the `Data` spreadsheet, then add that row in the above table of this `README.md` file, without the first cell.
diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ⅝x⅜/drawing.png b/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex ⅝x⅜/drawing.png
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diff --git a/Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ¼x¾/drawing.png b/Mechanical Parts/Chains/Sprocket/ISO 606/images/duplex_drawing.png
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rename from Mechanical Parts/Chains/Sprocket/ISO 606/Duplex 1 ¼x¾/screenshot.png
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