Updated the glass slide holder.

cad/mechanics_rev4/housing/main.scad

@@ -50,7 +50,7 @@ color(myColor1)
 {
 // Lid right
 translate([housing_outside_width/2 + close*20, 0, 0])
-!rotate([0, 90, 0])
+rotate([0, 90, 0])
 lid_l_r();
 
 // Lid left

cad/mechanics_rev4/pcb/dimensions.scad

@@ -5,7 +5,9 @@
 // Last modification:   29.07.2017
 /////////////////////////////////////////////////////////////////////////////////
 
+allowance03 = 0.3;
 allowance05 = 0.5;
+allowance1 = 1;
 
 // Glass dimensions
 glass_slide_height = 1;
@@ -18,22 +20,39 @@ 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);
+holder_bottom_side_thickness = 2;
 
 // LED illuminator dimensions
-led_illuminator_dia = 10;
+led_illuminator_thickness = 2; 
+led_illuminator_dia = 12.5 - led_illuminator_thickness;
 led_illuminator_height = 15;
+led_illuminator_leg1_pos_y = -6.25;
+led_illuminator_leg2_pos_y = 4;
+led_illuminator_leg2_pos_x = -4.75;
+led_illuminator_leg_dia = 2.2 - allowance05; 
+led_illuminator_leg_height = 4;
 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;
+// Screw dimensions
+drill_dia_m3 = 3.2;
+drill_depth = 7;
+drill_sinking_dia1_m3 = 5.5;
+drill_sinking_dia2_m3 = 3;
+drill_sinking_height_m3 = 2;
+
+// Leg dimensions
+leg_width = 4;
+leg_depth = 11;
 leg_height = led_illuminator_height;
+leg_inner_dia = 2.5;
 leg_pos_y = 13;
 leg_pos_x = 2.5;
 leg_distance = 6.5;
-leg_drill_depth = 7;
+leg_diff1 = leg_depth - leg_distance;
+//leg_drill_depth = 7;
+leg_drill_depth = leg_height + 1;
 
-myColor1 = "LimeGreen";
+myColor1 = "Grey";

cad/mechanics_rev4/pcb/glass_holder.scad

@@ -13,6 +13,10 @@
 include <dimensions.scad>
 use <dimensions.scad>
 
+// Dimesnions
+include <screw_sinkings.scad>
+use <screw_sinkings.scad>
+
 /////////////////////////////////////////////////////////////////////////////////
 // Vars
 /////////////////////////////////////////////////////////////////////////////////
@@ -22,7 +26,7 @@ use <dimensions.scad>
 /////////////////////////////////////////////////////////////////////////////////
 module glass_holder()
 {
-	translate([0, 0, holder_height/2 + leg_height -0.01])
+	//translate([0, 0, holder_height/2 + leg_height -0.01])
 	difference()
 	{
 		// Main body
@@ -30,7 +34,7 @@ module glass_holder()
 		union()
 		{
 			// Cut glass slide out and make an entrance
-			translate([-2.5, 0, 2])
+			translate([-2.5, 0, holder_bottom_side_thickness])
 			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])
@@ -38,6 +42,10 @@ module glass_holder()
 			// 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);	
+			// Cut out holes for screws
+			translate([0, 0, -holder_bottom_side_thickness + 0.5])
+			rotate([180, 0, 0])
+			screw_sinkings(glass_slide_width - 2*leg_pos_x, 0, drill_sinking_dia1_m3, drill_sinking_dia2_m3, drill_sinking_height_m3);
 		}
 	}
 }

cad/mechanics_rev4/pcb/led_illuminator.scad

@@ -22,14 +22,21 @@ use <dimensions.scad>
 /////////////////////////////////////////////////////////////////////////////////
 module illuminator()
 {
-	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()
+		{
+			cylinder(r = led_illuminator_dia/2 + led_illuminator_thickness, h = led_illuminator_height + allowance03, center = true);
+			// The two legs	
+			translate([0, led_illuminator_leg1_pos_y, - (led_illuminator_height + led_illuminator_leg_height)/2 - 0.01 ])
+			cylinder(r = (led_illuminator_leg_dia)/2, h = led_illuminator_leg_height, center = true);
+			translate([led_illuminator_leg2_pos_x, led_illuminator_leg2_pos_y, - (led_illuminator_height + led_illuminator_leg_height)/2 - 0.01 ])
+			cylinder(r = (led_illuminator_leg_dia)/2, h = led_illuminator_leg_height, center = true);
+		}
 		union()
 		{
 			// Cut out inner cylinder
-			cylinder(r = led_illuminator_dia/2, led_illuminator_height + 0.01, center = true);	
+			cylinder(r = led_illuminator_dia/2, led_illuminator_height + +allowance03 + 0.01, center = true);	
 			// Cut out slot
 			rotate([0, 0, led_illuminator_angle + 180])
 			translate([led_illuminator_dia/2, 0, -led_illuminator_height/2 - 0.01])

cad/mechanics_rev4/pcb/legs.scad

@@ -26,27 +26,18 @@ module legs()
 	{
 	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);
+		// Leg
+		translate([0, - leg_depth/2 + leg_diff1/2, leg_height/2])
+		cube([leg_width, leg_depth, leg_height], center = true);
 	}
 	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
+		// Drill holes
 		for(y = [0, 1])
-		translate([-glass_slide_width/2 + leg_pos_x, y*leg_distance, -0.01])
+		translate([0, -y*leg_distance, -0.01])
 		cylinder(r = leg_inner_dia/2, h = leg_drill_depth);
-
-	}
+		
 	}
 }
+}
 

cad/mechanics_rev4/pcb/main.scad

@@ -14,7 +14,7 @@ include <dimensions.scad>
 use <dimensions.scad>
 
 // Module for the glass holder
-include <glass_hollder.scad>
+include <glass_holder.scad>
 use <glass_holder.scad>
 
 // Module for the legs 
@@ -36,7 +36,21 @@ $fs = 0.5; // minimum facet size is now 0.5 mm
 /////////////////////////////////////////////////////////////////////////////////
 color(myColor1)
 {
+	// Glass holder
+	translate([0, 0, holder_height/2 + leg_height -0.01])
+	!translate([0, 0, holder_height/2])	
 	glass_holder();
+	
+	// Legs
+	translate([glass_slide_width/2 - leg_pos_x, 0, 0])
 	legs();
+	
+	translate([-glass_slide_width/2 + leg_pos_x, 0, 0])
+	rotate([0, 0, 180])
+	legs();
+	
+	translate([glass_slide_width/2 - led_pos_x, 0, led_illuminator_height/2 + 0.01])	
+	//translate([0, 0, (led_illuminator_height + allowance03)/2])
+	//rotate([0, 180 ,0])
 	illuminator();
 }

cad/mechanics_rev4/pcb/screw_holes.scad

@@ -0,0 +1,24 @@
+/////////////////////////////////////////////////////////////////////////////////
+// Module for four holes along a rectangle for screw threads.
+//
+// Author: 		Maximilian Stiefel
+// Last modification: 	09.07.2017
+/////////////////////////////////////////////////////////////////////////////////
+
+module screw_holes(xdim, ydim, dia, depth)
+{
+/////////////////////////////////////////////////////////////////////////
+// Vars
+/////////////////////////////////////////////////////////////////////////
+
+
+/////////////////////////////////////////////////////////////////////////
+// Action
+/////////////////////////////////////////////////////////////////////////
+union(){
+	for(x=[-1, +1])
+	for(y=[-1, +1])
+		translate([x*xdim/2, y*ydim/2, 0])
+		cylinder(r = dia/2, h = depth, center =true);
+}
+}

cad/mechanics_rev4/pcb/screw_sinkings.scad

@@ -0,0 +1,30 @@
+/////////////////////////////////////////////////////////////////////////////////
+// Module for four sinking holes, that cone-shaped screw heads can sink in.
+//
+// Author: 		Maximilian Stiefel
+// Last modification: 	09.07.2017
+/////////////////////////////////////////////////////////////////////////////////
+
+module screw_sinkings(xdim, ydim, dia1, dia2, depth)
+{
+/////////////////////////////////////////////////////////////////////////
+// Vars
+/////////////////////////////////////////////////////////////////////////
+
+
+/////////////////////////////////////////////////////////////////////////
+// Action
+/////////////////////////////////////////////////////////////////////////
+union(){
+	for(x=[-1, +1])
+	for(y=[-1, +1])
+		translate([x*xdim/2, y*ydim/2, 0])
+		union()
+		{
+			translate([0, 0, -depth + 0.1])
+			cylinder(r = dia1/2, h = depth, center = true);
+			cylinder(r1 = dia1/2, r2 = dia2/2, h = depth, center = true);
+		}
+}
+
+}

pcbs/analog_board_v0.2/analog_board_v0.2.kicad_pcb

@@ -5,7 +5,7 @@
     (no_connects 0)
     (area 68.642858 46.15 215.357144 148.850001)
     (thickness 1.6)
-    (drawings 52)
+    (drawings 51)
     (tracks 364)
     (zones 0)
     (modules 238)
@@ -4682,18 +4682,6 @@
   (gr_text "  Distance 1st pin TSW-103-08-G-D-RA to plastic 1.52 mm\n+ Thickness Plastic 2.54 mm \n+ Deepness female connector BCS-103-F-D-TE 7.37 mm\n--------------------------------------\n11.43 mm\n\n-> PCB sits directly on backplane.  " (at 131.25 55) (layer Dwgs.User)
     (effects (font (size 1.5 1.5) (thickness 0.3)) (justify left))
   )
-  (dimension 6.5 (width 0.3) (layer Dwgs.User)
-    (gr_text "6,5 mm" (at 118 107.25 90) (layer Dwgs.User)
-      (effects (font (size 1.5 1.5) (thickness 0.3)))
-    )
-    (feature1 (pts (xy 125 103.5) (xy 120.05 103.5)))
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-    (arrow1b (pts (xy 122.75 103.5) (xy 122.163579 104.626504)))
-    (arrow2a (pts (xy 122.75 110) (xy 123.336421 108.873496)))
-    (arrow2b (pts (xy 122.75 110) (xy 122.163579 108.873496)))
-  )
   (gr_circle (center 125 110) (end 125 103.75) (layer Dwgs.User) (width 0.2))
   (gr_circle (center 125 110) (end 124.25 107) (layer Dwgs.User) (width 0.2))
   (dimension 3 (width 0.3) (layer Dwgs.User)

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

@@ -5,7 +5,7 @@
     (no_connects 0)
     (area 68.642858 46.15 215.357144 148.850001)
     (thickness 1.6)
-    (drawings 54)
+    (drawings 52)
     (tracks 364)
     (zones 0)
     (modules 238)
@@ -4676,30 +4676,6 @@
     )
   )
 
-  (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)))
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-    (feature1 (pts (xy 180.5 123) (xy 167.5 123)))
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-    (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)))
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-    (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_v0.22/analog_board_v0.22.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 287)
     (no_connects 0)
     (area 62.150001 46.15 215.357144 157.700001)
     (thickness 1.6)
-    (drawings 54)
+    (drawings 55)
     (tracks 368)
     (zones 0)
     (modules 224)
@@ -4552,6 +4552,9 @@
     )
   )
 
+  (gr_text Photodiode (at 118.4 125.5) (layer Dwgs.User)
+    (effects (font (size 1.5 1.5) (thickness 0.3)))
+  )
   (dimension 50 (width 0.3) (layer Dwgs.User)
     (gr_text "50,000 mm" (at 68.65 110 270) (layer Dwgs.User)
       (effects (font (size 1.5 1.5) (thickness 0.3)))

pcbs/analog_board_v0.22/analog_board_v0.22.kicad_pcb-bak

@@ -3,7 +3,7 @@
   (general
     (links 287)
     (no_connects 0)
-    (area 104.949999 84.949999 185.050001 135.050001)
+    (area 62.150001 46.15 215.357144 157.700001)
     (thickness 1.6)
     (drawings 54)
     (tracks 368)