Finished glass slide holder.

cad/mechanics_rev3/pcb/dimensions.scad

@@ -0,0 +1,39 @@
+/////////////////////////////////////////////////////////////////////////////////
+// File for all dimensions, so they can be changed globally.
+//
+// Author:              Maximilian Stiefel
+// Last modification:   29.07.2017
+/////////////////////////////////////////////////////////////////////////////////
+
+allowance05 = 0.5;
+
+// Glass dimensions
+glass_slide_height = 1;
+glass_slide_depth = 26 + allowance05;
+glass_slide_width = 76;
+
+// Holder dimensions
+window_size = 20;
+holder_height = 3 + glass_slide_height + allowance05;
+holder_depth = glass_slide_depth + allowance05 + 4;
+holder_width = 80; // Width of the PCB
+echo(holder_height=holder_height);
+
+// LED illuminator dimensions
+led_illuminator_dia = 10;
+led_illuminator_height = 15;
+led_pos_x = 18;
+led_pos_y = 13;
+led_illuminator_thickness = 2; 
+led_illuminator_slot = 4;
+led_illuminator_angle = 35;
+
+leg_outer_dia = 5;
+leg_inner_dia = 2.5;
+leg_height = led_illuminator_height;
+leg_pos_y = 13;
+leg_pos_x = 2.5;
+leg_distance = 6.5;
+leg_drill_depth = 7;
+
+myColor1 = "LimeGreen";

cad/mechanics_rev3/pcb/glass_holder.scad

@@ -0,0 +1,43 @@
+/////////////////////////////////////////////////////////////////////////////////
+// Glass slide holder to be mounted on the PCB. 
+//
+// Author:              Maximilian Stiefel
+// Last modification:   29.06.2017
+/////////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////////
+// Includes
+/////////////////////////////////////////////////////////////////////////////////
+
+// Dimesnions
+include <dimensions.scad>
+use <dimensions.scad>
+
+/////////////////////////////////////////////////////////////////////////////////
+// Vars
+/////////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////////
+// Action
+/////////////////////////////////////////////////////////////////////////////////
+module glass_holder()
+{
+	translate([0, 0, holder_height/2 + leg_height -0.01])
+	difference()
+	{
+		// Main body
+		cube([holder_width, holder_depth, holder_height], center = true);
+		union()
+		{
+			// Cut glass slide out and make an entrance
+			translate([-2.5, 0, 2])
+			cube([glass_slide_width + allowance05 + 5, glass_slide_depth + allowance05, holder_height], center = true);
+			// Cut out a cylinder for the LED
+			translate([glass_slide_width/2 - led_pos_x, 0, 0])
+			cylinder(r = led_illuminator_dia/2, h = 20, center = true);
+			// Cut out a "window" where the receiver photodiode is sitting
+			translate([glass_slide_width/2 - led_pos_x, glass_slide_depth/2, 2])
+			cube([window_size, 10, 10], center = true);	
+		}
+	}
+}

cad/mechanics_rev3/pcb/led_illuminator.scad

@@ -1,35 +1,40 @@
 /////////////////////////////////////////////////////////////////////////////////
-// LED illuminator to hide the LED from the receiver diode. 
+// Illuminator for LED to keep the UV light away from the photodiode. 
 //
 // Author:              Maximilian Stiefel
-// Last modification:   22.06.2017
+// Last modification:   29.06.2017
 /////////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////////
 // Includes
 /////////////////////////////////////////////////////////////////////////////////
 
+// Dimesnions
+include <dimensions.scad>
+use <dimensions.scad>
+
 /////////////////////////////////////////////////////////////////////////////////
 // Vars
 /////////////////////////////////////////////////////////////////////////////////
-$fa = 0.5; // minimum facet angle is now 0.5
-$fs = 0.5; // minimum facet size is now 0.5 mm
 
-holder_height = 14;
-holder_diameter = 8.5;
-holder_hole_diameter = 6.5; // LED with 5 mm diameter should fit in
-holder_slot_width = 1;
 /////////////////////////////////////////////////////////////////////////////////
 // Action
 /////////////////////////////////////////////////////////////////////////////////
-difference()
+module illuminator()
 {
-	cylinder(h = holder_height, r = holder_diameter/2, center = true);
+	translate([glass_slide_width/2 - led_pos_x, 0, led_illuminator_height/2 + 0.01])
+	difference()
+	{
+		cylinder(r = led_illuminator_dia/2 + led_illuminator_thickness, led_illuminator_height, center = true);	
 		union()
 		{
-		translate([0, 0, 0])
+			// Cut out inner cylinder
-		cylinder(h = holder_height + 2, r = holder_hole_diameter/2, center = true);
+			cylinder(r = led_illuminator_dia/2, led_illuminator_height + 0.01, center = true);	
-		translate([0, holder_diameter/2, 0])
+			// Cut out slot
-		cube([holder_slot_width, 2*(holder_diameter-holder_hole_diameter), holder_height + 2], center = true);
+			rotate([0, 0, led_illuminator_angle + 180])
+			translate([led_illuminator_dia/2, 0, -led_illuminator_height/2 - 0.01])
+			cube([led_illuminator_dia/2, led_illuminator_slot, led_illuminator_height], center = true);
+		}
 	}
 }
+

cad/mechanics_rev3/pcb/legs.scad

@@ -0,0 +1,52 @@
+/////////////////////////////////////////////////////////////////////////////////
+// Legs for the glass slide holder. 
+//
+// Author:              Maximilian Stiefel
+// Last modification:   29.06.2017
+/////////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////////
+// Includes
+/////////////////////////////////////////////////////////////////////////////////
+
+// Dimesnions
+include <dimensions.scad>
+use <dimensions.scad>
+
+/////////////////////////////////////////////////////////////////////////////////
+// Vars
+/////////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////////
+// Action
+/////////////////////////////////////////////////////////////////////////////////
+module legs()
+{
+	difference()
+	{
+	union()
+	{
+		// Legs at the left
+		for(y = [0, 1])
+		translate([glass_slide_width/2 - leg_pos_x, -y*leg_distance,0])
+		cylinder(r = leg_outer_dia/2, h = leg_height);
+		// Legs at the right
+		for(y = [0, 1])
+		translate([-glass_slide_width/2 + leg_pos_x, y*leg_distance, 0])
+		cylinder(r = leg_outer_dia/2, h = leg_height);
+	}
+	union()
+	{
+		// Legs at the left
+		for(y = [0, 1])
+		translate([glass_slide_width/2 - leg_pos_x, -y*leg_distance, -0.01])
+		cylinder(r = leg_inner_dia/2, h = leg_drill_depth);
+		// Legs at the right
+		for(y = [0, 1])
+		translate([-glass_slide_width/2 + leg_pos_x, y*leg_distance, -0.01])
+		cylinder(r = leg_inner_dia/2, h = leg_drill_depth);
+
+	}
+	}
+}
+

cad/mechanics_rev3/pcb/glass_slide_holder.scad → cad/mechanics_rev3/pcb/main.scad

@@ -1,35 +1,42 @@
 /////////////////////////////////////////////////////////////////////////////////
-// LED illuminator to hide the LED from the receiver diode. 
+// Main file to bring everything together. 
 //
 // Author:              Maximilian Stiefel
-// Last modification:   22.06.2017
+// Last modification:   29.06.2017
 /////////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////////
 // Includes
 /////////////////////////////////////////////////////////////////////////////////
 
+// Dimesnions
+include <dimensions.scad>
+use <dimensions.scad>
+
+// Module for the glass holder
+include <glass_hollder.scad>
+use <glass_holder.scad>
+
+// Module for the legs 
+include <legs.scad>
+use <legs.scad>
+
+// Module for the legs 
+include <led_illuminator.scad>
+use <led_illuminator.scad>
+
 /////////////////////////////////////////////////////////////////////////////////
 // Vars
 /////////////////////////////////////////////////////////////////////////////////
 $fa = 0.5; // minimum facet angle is now 0.5
 $fs = 0.5; // minimum facet size is now 0.5 mm
 
-allowance = 0.5;
-
-glass_slide_thickness = 1;
-glass_slide_width = 26 + allowance;
-
-holder_height = 15 + glass_slide_thickness + allowance;
-holder_width = 26 + allowance + 4;
-holder_depth = 3.5;
-
 /////////////////////////////////////////////////////////////////////////////////
 // Action
 /////////////////////////////////////////////////////////////////////////////////
-difference()
+color(myColor1)
 {
-	cube([holder_width, holder_depth, holder_height]);
+	glass_holder();
-	translate([(holder_width - glass_slide_width)/2, holder_depth - 1.25 - allowance, holder_height - glass_slide_thickness - allowance])
+	legs();
-	cube([glass_slide_width, holder_depth, 2]);
+	illuminator();
 }

pcbs/analog_board_v0.2/analog_board_v0.2.kicad_pcb

@@ -1,11 +1,11 @@
-(kicad_pcb (version 4) (host pcbnew 4.0.6-e0-6349~52~ubuntu17.04.1)
+(kicad_pcb (version 4) (host pcbnew 4.0.7-e0-6372~58~ubuntu17.04.1)
 
   (general
     (links 300)
     (no_connects 0)
     (area 68.642858 46.15 215.357144 148.850001)
     (thickness 1.6)
-    (drawings 52)
+    (drawings 54)
     (tracks 364)
     (zones 0)
     (modules 238)
@@ -31,7 +31,7 @@
     (37 F.SilkS user)
     (38 B.Mask user)
     (39 F.Mask user hide)
-    (40 Dwgs.User user hide)
+    (40 Dwgs.User user)
     (41 Cmts.User user)
     (42 Eco1.User user)
     (43 Eco2.User user)
@@ -4676,6 +4676,30 @@
     )
   )
 
+  (dimension 13 (width 0.3) (layer Dwgs.User)
+    (gr_text "13,000 mm" (at 166.6 116.5 270) (layer Dwgs.User)
+      (effects (font (size 1.5 1.5) (thickness 0.3)))
+    )
+    (feature1 (pts (xy 180.5 123) (xy 167.5 123)))
+    (feature2 (pts (xy 180.5 110) (xy 167.5 110)))
+    (crossbar (pts (xy 170.2 110) (xy 170.2 123)))
+    (arrow1a (pts (xy 170.2 123) (xy 169.613579 121.873496)))
+    (arrow1b (pts (xy 170.2 123) (xy 170.786421 121.873496)))
+    (arrow2a (pts (xy 170.2 110) (xy 169.613579 111.126504)))
+    (arrow2b (pts (xy 170.2 110) (xy 170.786421 111.126504)))
+  )
+  (dimension 6.4 (width 0.3) (layer Dwgs.User)
+    (gr_text "6,400 mm" (at 173.7 117.1 270) (layer Dwgs.User)
+      (effects (font (size 1.5 1.5) (thickness 0.3)))
+    )
+    (feature1 (pts (xy 180.5 123) (xy 175.100001 123)))
+    (feature2 (pts (xy 180.5 116.6) (xy 175.100001 116.6)))
+    (crossbar (pts (xy 177.800001 116.6) (xy 177.800001 123)))
+    (arrow1a (pts (xy 177.800001 123) (xy 177.21358 121.873496)))
+    (arrow1b (pts (xy 177.800001 123) (xy 178.386422 121.873496)))
+    (arrow2a (pts (xy 177.800001 116.6) (xy 177.21358 117.726504)))
+    (arrow2b (pts (xy 177.800001 116.6) (xy 178.386422 117.726504)))
+  )
   (gr_text <1 (at 136.3345 124.587) (layer F.SilkS)
     (effects (font (size 1.5 1.5) (thickness 0.3)))
   )

pcbs/analog_board_v0.2/analog_board_v0.2.kicad_pcb-bak

@@ -3,7 +3,7 @@
   (general
     (links 300)
     (no_connects 0)
-    (area 104.949999 84.949999 185.050001 135.050001)
+    (area 68.642858 46.15 215.357144 148.850001)
     (thickness 1.6)
     (drawings 52)
     (tracks 364)
@@ -44,7 +44,7 @@
   )
 
   (setup
-    (last_trace_width 0.4)
+    (last_trace_width 0.25)
     (user_trace_width 0.4)
     (trace_clearance 0.2)
     (zone_clearance 0.2)