diff --git a/hardware/peristaltic-pump/tube-holder.scad b/hardware/microscope-stand/tube-holder.scad
similarity index 60%
rename from hardware/peristaltic-pump/tube-holder.scad
rename to hardware/microscope-stand/tube-holder.scad
index 0c70f31..aa4f5ca 100644
--- a/hardware/peristaltic-pump/tube-holder.scad
+++ b/hardware/microscope-stand/tube-holder.scad
@@ -1,7 +1,15 @@
+/******************************************************************
+ *                                                                 *
+ * FlowFlexure Microscope: tube holder                             *
+ *                                                                 *
+ * (c) Sebastian Wendel, 2023                                      *
+ * Released under the CERN Open Hardware License                   *
+ *                                                                 *
+ ******************************************************************/
+
 $fn = 100;
 
 case_thickness = 3;
-case_wide = 100;
 
 tube_count = 3;
 tube_radius = 15;
diff --git a/hardware/peristaltic-pump/libs/base.scad b/hardware/peristaltic-pump/libs/base.scad
index 517f85f..3ede2cf 100644
--- a/hardware/peristaltic-pump/libs/base.scad
+++ b/hardware/peristaltic-pump/libs/base.scad
@@ -1,3 +1,12 @@
+/******************************************************************
+ *                                                                 *
+ * FlowFlexure Microscope: peristaltic pump base library           *
+ *                                                                 *
+ * (c) Sebastian Wendel, 2023                                      *
+ * Released under the CERN Open Hardware License                   *
+ *                                                                 *
+ ******************************************************************/
+
 $fn = 100;
 
 case_size = 31;
@@ -9,6 +18,25 @@ motor_screw_x = 17.5;
 screws_socket = 4.5;
 screws_hole = 2;
 
+module screws_holes()
+{
+	translate([ motor_screw_x, motor_screw_y, 0 ])
+	{
+		circle(r = screws_hole);
+	}
+
+	mirror([ 1, 0, 0 ])
+	{
+		translate([ motor_screw_x, motor_screw_y, 0 ])
+		{
+			difference()
+			{
+				circle(r = screws_hole);
+			}
+		}
+	}
+}
+
 module base_layout()
 {
 	minkowski()
@@ -37,21 +65,6 @@ module base_layout()
 				}
 			}
 		}
-
-		translate([ motor_screw_x, motor_screw_y, 0 ])
-		{
-			circle(r = screws_hole);
-		}
-
-		mirror([ 1, 0, 0 ])
-		{
-			translate([ motor_screw_x, motor_screw_y, 0 ])
-			{
-				difference()
-				{
-					circle(r = screws_hole);
-				}
-			}
-		}
+		screws_holes();
 	}
 }
diff --git a/hardware/peristaltic-pump/pump-body.scad b/hardware/peristaltic-pump/pump-body.scad
index 5121489..977d250 100644
--- a/hardware/peristaltic-pump/pump-body.scad
+++ b/hardware/peristaltic-pump/pump-body.scad
@@ -1,3 +1,12 @@
+/******************************************************************
+ *                                                                 *
+ * FlowFlexure Microscope: peristaltic pump body                   *
+ *                                                                 *
+ * (c) Sebastian Wendel, 2023                                      *
+ * Released under the CERN Open Hardware License                   *
+ *                                                                 *
+ ******************************************************************/
+
 $fn = 100;
 
 use <./libs/base.scad>
diff --git a/hardware/peristaltic-pump/pump-cover.scad b/hardware/peristaltic-pump/pump-cover.scad
index 84642ea..2a738d1 100644
--- a/hardware/peristaltic-pump/pump-cover.scad
+++ b/hardware/peristaltic-pump/pump-cover.scad
@@ -1,3 +1,12 @@
+/******************************************************************
+ *                                                                 *
+ * FlowFlexure Microscope: peristaltic pump cover                  *
+ *                                                                 *
+ * (c) Sebastian Wendel, 2023                                      *
+ * Released under the CERN Open Hardware License                   *
+ *                                                                 *
+ ******************************************************************/
+
 $fn = 100;
 
 use <./libs/base.scad>
diff --git a/hardware/peristaltic-pump/pump-insert.scad b/hardware/peristaltic-pump/pump-insert.scad
index ce67b99..1cc5bab 100644
--- a/hardware/peristaltic-pump/pump-insert.scad
+++ b/hardware/peristaltic-pump/pump-insert.scad
@@ -1,3 +1,12 @@
+/******************************************************************
+ *                                                                 *
+ * FlowFlexure Microscope: peristaltic pump insert                 *
+ *                                                                 *
+ * (c) Sebastian Wendel, 2023                                      *
+ * Released under the CERN Open Hardware License                   *
+ *                                                                 *
+ ******************************************************************/
+
 $fn = 100;
 
 use <./libs/base.scad>