Small adoptions for the glass silde to be put on the analog PCB directly.

cad/etching_machine/v1.0/pcb_holder_crossbar.scad

@@ -1,18 +0,0 @@
-/////////////////////////////////////////////////////////////////////////////////
-// Adapter for drilling machine in the embedded lab.
-//
-// Author:              Maximilian Stiefel
-// Last modification:   07.06.2017
-/////////////////////////////////////////////////////////////////////////////////
-
-/////////////////////////////////////////////////////////////////////////////////
-// Vars
-/////////////////////////////////////////////////////////////////////////////////
-crossbar_depth = 175;
-crossbar_height = 10;
-crossbar_width = 5;
-
-/////////////////////////////////////////////////////////////////////////////////
-// Action
-/////////////////////////////////////////////////////////////////////////////////
-cube([crossbar_width, crossbar_depth, crossbar_height], center = true);

cad/etching_machine/v1.0/pcb_holder_crossbar.stl

@@ -1,86 +0,0 @@
-solid OpenSCAD_Model
-  facet normal -0 0 1
-    outer loop
-      vertex -2.5 87.5 5
-      vertex 2.5 -87.5 5
-      vertex 2.5 87.5 5
-    endloop
-  endfacet
-  facet normal 0 0 1
-    outer loop
-      vertex 2.5 -87.5 5
-      vertex -2.5 87.5 5
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-  endfacet
-  facet normal 0 0 -1
-    outer loop
-      vertex -2.5 -87.5 -5
-      vertex 2.5 87.5 -5
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-      vertex -2.5 -87.5 -5
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-    endloop
-  endfacet
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-    outer loop
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-      vertex -2.5 -87.5 -5
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-      vertex 2.5 87.5 -5
-      vertex 2.5 87.5 5
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-  facet normal 1 0 0
-    outer loop
-      vertex 2.5 87.5 -5
-      vertex 2.5 -87.5 5
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-  endfacet
-  facet normal 0 1 -0
-    outer loop
-      vertex 2.5 87.5 -5
-      vertex -2.5 87.5 5
-      vertex 2.5 87.5 5
-    endloop
-  endfacet
-  facet normal 0 1 0
-    outer loop
-      vertex -2.5 87.5 5
-      vertex 2.5 87.5 -5
-      vertex -2.5 87.5 -5
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-  endfacet
-  facet normal -1 0 0
-    outer loop
-      vertex -2.5 -87.5 -5
-      vertex -2.5 87.5 5
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-  endfacet
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-    outer loop
-      vertex -2.5 87.5 5
-      vertex -2.5 -87.5 -5
-      vertex -2.5 -87.5 5
-    endloop
-  endfacet
-endsolid OpenSCAD_Model

cad/etching_machine/v1.0/pcb_holder_holder_l.scad

@@ -1,87 +0,0 @@
-/////////////////////////////////////////////////////////////////////////////////
-// Adapter for drilling machine in the embedded lab.
-//
-// Author:              Maximilian Stiefel
-// Last modification:   10.06.2017
-/////////////////////////////////////////////////////////////////////////////////
-
-/////////////////////////////////////////////////////////////////////////////////
-// Vars
-/////////////////////////////////////////////////////////////////////////////////
-holder_height = 175;
-holder_width = 15;
-holder_depth = 5;
-
-notch_height = 120;
-notch_width = 2;
-notch_depth = 3;
-
-allowance = 0.5;
-
-crossbar_height = 10 + allowance;
-crossbar_width = 5 + allowance;
-crossbar_depth = 175;
-
-pillar_height = 20;
-pillar_width = 15;
-pillar_depth = holder_depth;
-
-airpump_diameter = 30;
-
-// Suitable for M3 screw thread
-hole_diameter = 2.5;
-
-// Height difference between notch for PCB and the actual holder
-height_diff_1 = holder_height - notch_height;
-
-// Height difference between notch position and crossbar_slot
-height_diff_2 = 0.7*height_diff_1 - airpump_diameter/2;
-
-// Width difference between crossbar and holder
-width_diff_1 = holder_width - crossbar_width; 
-
-// With difference between 
-width_diff_2 = pillar_width - holder_width;
-
-/////////////////////////////////////////////////////////////////////////////////
-// Action
-/////////////////////////////////////////////////////////////////////////////////
-difference()
-{
-union()
-{
-	// Cube for the base holder
-	cube([holder_width, holder_depth, holder_height], center = false);
-	// Pillars
-	translate([holder_width, 0, 0])
-	cube([pillar_width, pillar_depth, pillar_height]);
-	translate([-pillar_width , 0, 0])
-	cube([pillar_width, pillar_depth, pillar_height]);
-}
-
-union()
-{
-	// Drill holes for air pump
-	translate([holder_width/2, holder_depth + 1, 0])
-	rotate([90, 0, 0])
-	cylinder(h = holder_depth + 2, r = airpump_diameter/2);
-
-	// Cube for notch
-	translate([holder_width/2 - notch_width/2, -1, 0.7*height_diff_1])
-	cube([notch_width, notch_depth, notch_height], center = false);
-
-	// Slots for crossbars
-	translate([width_diff_1/2, -1, height_diff_2/2 + airpump_diameter/2 - crossbar_height/2])
-	cube([crossbar_width, holder_depth + 2, crossbar_height], center = false);
-	translate([width_diff_1/2, -1, holder_height - 0.3*height_diff_1/2 - crossbar_height/2])
-	cube([crossbar_width, holder_depth + 2, crossbar_height], center = false);
-
-	// Drill holes for screws
-	translate([-1, holder_depth/2, height_diff_2/2 + airpump_diameter/2])
-	rotate([0, 90, 0])
-	cylinder(h = 9, r = hole_diameter/2);
-	translate([-1, holder_depth/2, holder_height - 0.3*height_diff_1/2])
-	rotate([0, 90, 0])
-	cylinder(h = 9, r = hole_diameter/2);
-}
-}

cad/etching_machine/v1.0/pcb_holder_holder_r.scad

@@ -1,87 +0,0 @@
-/////////////////////////////////////////////////////////////////////////////////
-// Adapter for drilling machine in the embedded lab.
-//
-// Author:              Maximilian Stiefel
-// Last modification:   10.06.2017
-/////////////////////////////////////////////////////////////////////////////////
-
-/////////////////////////////////////////////////////////////////////////////////
-// Vars
-/////////////////////////////////////////////////////////////////////////////////
-holder_height = 175;
-holder_width = 15;
-holder_depth = 5;
-
-notch_height = 120;
-notch_width = 2;
-notch_depth = 3;
-
-allowance = 0.5;
-
-crossbar_height = 10 + allowance;
-crossbar_width = 5 + allowance;
-crossbar_depth = 175;
-
-pillar_height = 20;
-pillar_width = 15;
-pillar_depth = holder_depth;
-
-airpump_diameter = 30;
-
-// Suitable for M3 screw thread
-hole_diameter = 2.5;
-
-// Height difference between notch for PCB and the actual holder
-height_diff_1 = holder_height - notch_height;
-
-// Height difference between notch position and crossbar_slot
-height_diff_2 = 0.7*height_diff_1 - airpump_diameter/2;
-
-// Width difference between crossbar and holder
-width_diff_1 = holder_width - crossbar_width; 
-
-// With difference between 
-width_diff_2 = pillar_width - holder_width;
-
-/////////////////////////////////////////////////////////////////////////////////
-// Action
-/////////////////////////////////////////////////////////////////////////////////
-difference()
-{
-union()
-{
-	// Cube for the base holder
-	cube([holder_width, holder_depth, holder_height], center = false);
-	// Pillars
-	translate([holder_width , 0, 0])
-	cube([pillar_width, pillar_depth, pillar_height]);
-	translate([-pillar_width, 0, 0])
-	cube([pillar_width, pillar_depth, pillar_height]);
-}
-
-union()
-{
-	// Drill holes for air pump
-	translate([holder_width/2, holder_depth + 1, 0])
-	rotate([90, 0, 0])
-	cylinder(h = holder_depth + 2, r = airpump_diameter/2);
-
-	// Cube for notch
-	translate([holder_width/2 - notch_width/2, -1, 0.7*height_diff_1])
-	cube([notch_width, notch_depth, notch_height], center = false);
-
-	// Slots for crossbars
-	translate([width_diff_1/2, -1, height_diff_2/2 + airpump_diameter/2 - crossbar_height/2])
-	cube([crossbar_width, holder_depth + 2, crossbar_height], center = false);
-	translate([width_diff_1/2, -1, holder_height - 0.3*height_diff_1/2 - crossbar_height/2])
-	cube([crossbar_width, holder_depth + 2, crossbar_height], center = false);
-
-	// Drill holes for screws
-	translate([holder_width/2, holder_depth/2, height_diff_2/2 + airpump_diameter/2])
-	rotate([0, 90, 0])
-	cylinder(h = 9, r = hole_diameter/2);
-	translate([holder_width/2, holder_depth/2, holder_height - 0.3*height_diff_1/2])
-	rotate([0, 90, 0])
-	cylinder(h = 9, r = hole_diameter/2);
-}
-}

cad/etching_machine/v2.0/dimensions.scad

@@ -1,91 +0,0 @@
-/////////////////////////////////////////////////////////////////////////////////
-// File for all dimensions, so they can be changed globally.
-//
-// Author:              Maximilian Stiefel
-// Last modification:   17.06.2017
-/////////////////////////////////////////////////////////////////////////////////
-
-// Allowance
-allowance05 = 0.5;
-allowance1 = 1;
-allowance2 = 2;
-
-// Dimesions holder
-holder_height = 172;
-holder_width = 18;
-holder_depth = 8;
-
-// Dimensions notch
-notch_height = 161;
-// Calculations to construct a triangle which can take a PCB
-biggest_pcb = 2;
-c = biggest_pcb + allowance05;
-x = c;
-y = sqrt( pow(x,2) - pow(c/2,2) );
-
-// Dimensions cuvette
-glass_thickness = 6;
-cuvette_width = 180 + 2*glass_thickness + allowance2;
-cuvette_depth = 50 + 2*glass_thickness + allowance2;
-
-// Dimensions lid
-lid_thickness = 4;
-lid_width = 180 + 2*glass_thickness + 2*lid_thickness + allowance2;
-lid_depth = 50 + 2*glass_thickness + 2*lid_thickness + allowance2;
-lid_height = 20;
-
-// Dimensions holder heater
-heater_diameter = 25 + allowance1; 
-heater_offset = 55;
-heater_pos = -lid_width/2 + heater_diameter/2 + 2*lid_thickness + 3;
-
-// Dimensions slot for the PCB holder arms
-slot_width = lid_width - heater_diameter - 2*lid_thickness - 20;
-slot_depth = holder_depth + allowance05;
-slot_height = 1.5 * lid_height;
-slot_pos = heater_pos + heater_diameter/2 + lid_thickness + 3;  
-
-// Dimensions service holes for temp. sensor and air tube
-service_hole_width = 10;
-service_hole_depth = 10;
-service_hole_height = lid_height;
-
-// Dimensions crossbar
-crossbar_height = 2.5 + allowance05;
-crossbar_width = 8 + allowance05;
-crossbar_depth = slot_width;
-
-// Dimensions lid
-lid_thickness = 4;
-lid_slot_width = 8;
-
-// Dimensions neck
-neck_diameter = holder_depth;
-neck_height = lid_thickness + allowance05;
-
-// Dimensions head 
-head_width = holder_width;
-head_depth = holder_depth;
-head_height = 5;
-
-// Suitable for M3 screw thread
-hole_diameter = 2.5;
-
-// Air system diameter
-air_system = 10;
-
-// Height difference between notch for PCB and the actual holder
-height_diff_1 = holder_height - notch_height;
-
-// Width difference between crossbar and holder
-width_diff_1 = holder_width - crossbar_width;
-
-// Dimensions bar that PCB does not fall down
-bar_width = holder_width/2;
-bar_depth = 6;
-// The height of this thing should exactely use the space which is available
-// between the notch for the PBC and the crossbar slot 
-bar_height = height_diff_1/4 - crossbar_height/2;
-
-// My color for everything
-myColor = "FireBrick";

cad/etching_machine/v2.0/pcb_holder_crossbar.scad

@@ -1,17 +0,0 @@
-/////////////////////////////////////////////////////////////////////////////////
-// Adapter for drilling machine in the embedded lab.
-//
-// Author:              Maximilian Stiefel
-// Last modification:   17.06.2017
-/////////////////////////////////////////////////////////////////////////////////
-
-/////////////////////////////////////////////////////////////////////////////////
-// Includes
-/////////////////////////////////////////////////////////////////////////////////
-include <dimensions.scad>
-use <dimensions.scad>
-
-/////////////////////////////////////////////////////////////////////////////////
-// Action
-/////////////////////////////////////////////////////////////////////////////////
-cube([crossbar_width - allowance05, crossbar_depth, crossbar_height - allowance05], center = true);

cad/etching_machine/v2.0/pcb_holder_crossbar.stl

@@ -1,86 +0,0 @@
-solid OpenSCAD_Model
-  facet normal -0 0 1
-    outer loop
-      vertex -4 74 1.25
-      vertex 4 -74 1.25
-      vertex 4 74 1.25
-    endloop
-  endfacet
-  facet normal 0 0 1
-    outer loop
-      vertex 4 -74 1.25
-      vertex -4 74 1.25
-      vertex -4 -74 1.25
-    endloop
-  endfacet
-  facet normal 0 0 -1
-    outer loop
-      vertex -4 -74 -1.25
-      vertex 4 74 -1.25
-      vertex 4 -74 -1.25
-    endloop
-  endfacet
-  facet normal -0 0 -1
-    outer loop
-      vertex 4 74 -1.25
-      vertex -4 -74 -1.25
-      vertex -4 74 -1.25
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-  endfacet
-  facet normal 0 -1 0
-    outer loop
-      vertex -4 -74 -1.25
-      vertex 4 -74 1.25
-      vertex -4 -74 1.25
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-  endfacet
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-      vertex 4 -74 1.25
-      vertex -4 -74 -1.25
-      vertex 4 -74 -1.25
-    endloop
-  endfacet
-  facet normal 1 -0 0
-    outer loop
-      vertex 4 -74 1.25
-      vertex 4 74 -1.25
-      vertex 4 74 1.25
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-  endfacet
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-      vertex 4 -74 1.25
-      vertex 4 -74 -1.25
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-  endfacet
-  facet normal 0 1 -0
-    outer loop
-      vertex 4 74 -1.25
-      vertex -4 74 1.25
-      vertex 4 74 1.25
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-  endfacet
-  facet normal 0 1 0
-    outer loop
-      vertex -4 74 1.25
-      vertex 4 74 -1.25
-      vertex -4 74 -1.25
-    endloop
-  endfacet
-  facet normal -1 0 0
-    outer loop
-      vertex -4 -74 -1.25
-      vertex -4 74 1.25
-      vertex -4 74 -1.25
-    endloop
-  endfacet
-  facet normal -1 -0 0
-    outer loop
-      vertex -4 74 1.25
-      vertex -4 -74 -1.25
-      vertex -4 -74 1.25
-    endloop
-  endfacet
-endsolid OpenSCAD_Model

cad/etching_machine/v2.0/pcb_holder_floor_prot.scad

@@ -1,41 +0,0 @@
-/////////////////////////////////////////////////////////////////////////////////
-// Floor protection for cuvette.
-//
-// Author:              Maximilian Stiefel
-// Last modification:   12.06.2017
-/////////////////////////////////////////////////////////////////////////////////
-
-/////////////////////////////////////////////////////////////////////////////////
-// Includes
-/////////////////////////////////////////////////////////////////////////////////
-include <roundy.scad>
-use <roundy.scad>
-include <dimensions.scad>
-use <dimensions.scad>
-
-/////////////////////////////////////////////////////////////////////////////////
-// Action
-/////////////////////////////////////////////////////////////////////////////////
-color(myColor)
-difference()
-{
-	union()
-	{
-		// Basic lid
-		translate([0, 0, lid_height/2])
-		roundy(lid_width, lid_depth, lid_height, true);
-		translate([-lid_width/2 + 5, -lid_depth/2 + 2, lid_height/2])
-		rotate([90, 0, 0])
-		linear_extrude(height = 6, center = true, convexity = 10, twist = 0)
-		union()
-		{
-		translate([0, 4, 0])
-		text("Etching Machine of the Embedded Systems Master", size = 6, valign = "center");
-		translate([0, -4, 0])
-		text("Designed by Maximilian Stiefel 2017", size = 6, valign = "center");
-		}
-	}
-	// Depening to put it over the cuvette
-	translate([0, 0, lid_height - lid_thickness])
-	cube([cuvette_width, cuvette_depth, lid_height], center = true);
-}

cad/etching_machine/v2.0/pcb_holder_holder_l.scad

@@ -1,88 +0,0 @@
-/////////////////////////////////////////////////////////////////////////////////
-// Left holder part to anchor PCB with in the etching bath.
-//
-// Author:              Maximilian Stiefel
-// Last modification:   17.06.2017
-/////////////////////////////////////////////////////////////////////////////////
-
-/////////////////////////////////////////////////////////////////////////////////
-// Includes
-/////////////////////////////////////////////////////////////////////////////////
-
-include <dimensions.scad>
-use <dimensions.scad>
-
-/////////////////////////////////////////////////////////////////////////////////
-// Vars
-/////////////////////////////////////////////////////////////////////////////////
-
-/////////////////////////////////////////////////////////////////////////////////
-// Action
-/////////////////////////////////////////////////////////////////////////////////
-color(myColor)
-difference()
-{
-	union()
-	{
-		// Cube for the base holder
-		cube([holder_width, holder_depth, holder_height], center = false);
-		
-		// Head
-		translate([0, 0, holder_height + neck_height])
-		cube([head_width, head_depth, head_height]);
-		
-		// Neck
-		translate([holder_width/2, holder_depth/2, holder_height])
-		cylinder(h = neck_height, r = neck_diameter/2);
-		
-		// Bar, that PCB does not fall 
-		translate([holder_width/2 - bar_width/2, -bar_depth, height_diff_1/2 - bar_height])
-		cube([bar_width, bar_depth, bar_height]);
-		
-		// Text
-		translate([holder_width/2 + 4, holder_depth, 0.2*holder_height])
-		rotate([90,0,180])
-		linear_extrude(height = 3, center = true, convexity = 10, twist = 0)
-		text("L", size = 10, valign = "center");
-		translate([0, holder_depth -1, (1/4)*height_diff_1 + 6])
-		rotate([90, 0, 270])
-		linear_extrude(height = 2, center = true, convexity = 10, twist = 0)
-		text("M3", size = 3, valign = "center");
-		translate([0, holder_depth/2, holder_height/2])
-		rotate([90, -90, 270])
-		linear_extrude(height = 2, center = true, convexity = 10, twist = 0)
-		text("Maximilian Stiefel 2017", size = 3, valign = "center");
-
-	}
-
-	union()
-	{
-		// Cube for notch
-		//translate([holder_width/2 - notch_width/2, -notch_depth +2, height_diff_1/2])
-		//cube([notch_width, notch_depth, notch_height], center = false);
-
-		// Triangular notch
-		translate([-c/2 + holder_width/2, -0.01, height_diff_1/2])
-		linear_extrude(height = notch_height, center = false)
-		polygon(points=[[0,0],[c/2,y], [c,0]], paths = [[0,1,2]]);	
-		
-		// Slots for crossbars
-		translate([width_diff_1/2, -1, (1/4)*height_diff_1 - crossbar_height/2])
-		cube([crossbar_width, holder_depth + 2, crossbar_height], center = false);
-		translate([width_diff_1/2, -1, (3/4)*height_diff_1 + notch_height - crossbar_height/2])
-		cube([crossbar_width, holder_depth + 2, crossbar_height], center = false);
-
-		// Drill holes for screws
-		translate([-1, holder_depth/2, (1/4)*height_diff_1])
-		rotate([0, 90, 0])
-		cylinder(h = 9, r = hole_diameter/2);
-		translate([0, holder_depth/2,(3/4)*height_diff_1 + notch_height])
-		rotate([0, 90, 0])
-		cylinder(h = 9, r = hole_diameter/2);
-
-		// Holes for the air system
-		// translate([holder_width/2, holder_depth + 1, 0])
-		// rotate([90, 0, 0])
-		// cylinder(h = holder_depth + 2, r = air_system/2);	
-	}
-}

cad/etching_machine/v2.0/pcb_holder_holder_r.scad

@@ -1,88 +0,0 @@
-/////////////////////////////////////////////////////////////////////////////////
-// Left holder part to anchor PCB with in the etching bath.
-//
-// Author:              Maximilian Stiefel
-// Last modification:   17.06.2017
-/////////////////////////////////////////////////////////////////////////////////
-
-/////////////////////////////////////////////////////////////////////////////////
-// Includes
-/////////////////////////////////////////////////////////////////////////////////
-
-include <dimensions.scad>
-use <dimensions.scad>
-
-/////////////////////////////////////////////////////////////////////////////////
-// Vars
-/////////////////////////////////////////////////////////////////////////////////
-
-/////////////////////////////////////////////////////////////////////////////////
-// Action
-/////////////////////////////////////////////////////////////////////////////////
-color(myColor)
-difference()
-{
-	union()
-	{
-		// Cube for the base holder
-		cube([holder_width, holder_depth, holder_height], center = false);
-		
-		// Head
-		translate([0, 0, holder_height + neck_height])
-		cube([head_width, head_depth, head_height]);
-		
-		// Neck
-		translate([holder_width/2, holder_depth/2, holder_height])
-		cylinder(h = neck_height, r = neck_diameter/2);
-		
-		// Bar, that PCB does not fall 
-		translate([holder_width/2 - bar_width/2, -bar_depth, height_diff_1/2 - bar_height])
-		cube([bar_width, bar_depth, bar_height]);
-		
-		// Text
-		translate([holder_width/2 +5, holder_depth, 0.2*holder_height])
-		rotate([90,0,180])
-		linear_extrude(height = 3, center = true, convexity = 10, twist = 0)
-		text("R", size = 10, valign = "center");
-		translate([holder_width, 1, (1/4)*height_diff_1 + 6])
-		rotate([90, 0,90])
-		linear_extrude(height = 2, center = true, convexity = 10, twist = 0)
-		text("M3", size = 3, valign = "center");
-		translate([holder_width, holder_depth/2, holder_height/2])
-		rotate([90, -90, 90])
-		linear_extrude(height = 2, center = true, convexity = 10, twist = 0)
-		text("Maximilian Stiefel 2017", size = 3, valign = "center");
-
-	}
-
-	union()
-	{
-		// Cube for notch
-		//translate([holder_width/2 - notch_width/2, -notch_depth +2, height_diff_1/2])
-		//cube([notch_width, notch_depth, notch_height], center = false);
-
-		// Triangular notch
-		translate([-c/2 + holder_width/2, -0.01, height_diff_1/2])
-		linear_extrude(height = notch_height, center = false)
-		polygon(points=[[0,0],[c/2,y], [c,0]], paths = [[0,1,2]]);	
-		
-		// Slots for crossbars
-		translate([width_diff_1/2, -1, (1/4)*height_diff_1 - crossbar_height/2])
-		cube([crossbar_width, holder_depth + 2, crossbar_height], center = false);
-		translate([width_diff_1/2, -1, (3/4)*height_diff_1 + notch_height - crossbar_height/2])
-		cube([crossbar_width, holder_depth + 2, crossbar_height], center = false);
-
-		// Drill holes for screws
-		translate([holder_width/2 + 1, holder_depth/2, (1/4)*height_diff_1])
-		rotate([0, 90, 0])
-		cylinder(h = 9, r = hole_diameter/2);
-		translate([holder_width/2 + 1, holder_depth/2,(3/4)*height_diff_1 + notch_height])
-		rotate([0, 90, 0])
-		cylinder(h = 9, r = hole_diameter/2);
-
-		// Holes for the air system
-		// translate([holder_width/2, holder_depth + 1, 0])
-		// rotate([90, 0, 0])
-		// cylinder(h = holder_depth + 2, r = air_system/2);	
-	}
-}

cad/etching_machine/v2.0/pcb_holder_lid.scad

@@ -1,69 +0,0 @@
-/////////////////////////////////////////////////////////////////////////////////
-// Lid for cuvette with pcb holder slots and a possibility to put a heater.
-//
-// Author:              Maximilian Stiefel
-// Last modification:   17.06.2017
-/////////////////////////////////////////////////////////////////////////////////
-
-/////////////////////////////////////////////////////////////////////////////////
-// Includes
-/////////////////////////////////////////////////////////////////////////////////
-include <roundy.scad>
-use <roundy.scad>
-include <dimensions.scad>
-use <dimensions.scad>
-
-/////////////////////////////////////////////////////////////////////////////////
-// Action
-/////////////////////////////////////////////////////////////////////////////////
-color(myColor)
-difference()
-{
-	union()
-	{
-		// Basic lid
-		translate([0, 0, lid_height/2])
-		roundy(lid_width, lid_depth, lid_height, true);
-		//cube([lid_width, lid_depth, lid_height], center = true);
-		translate([heater_pos, 0, lid_height - 1])
-		cylinder(h = heater_offset + 1, r = heater_diameter/2 + lid_thickness);
-		
-		// Uppsala University Logo
-		translate([0, 5, lid_height])
-		linear_extrude(height = 1)
-		scale(0.08)
-		import("uppsla_university.dxf");
-		
-		// Text
-		translate([-lid_width/2 + 5, -lid_depth/2 + 2, lid_height/2])
-		rotate([90, 0, 0])
-		linear_extrude(height = 6, center = true, convexity = 10, twist = 0)
-		union()
-		{
-		translate([0, 4, 0])
-		text("Embedded Etcher", size = 6, valign = "center");
-		translate([0, -4, 0])
-		text("Revision 1.0", size = 6, valign = "center");
-		}
-	}
-	union()
-	{
-		// Depening to put it over the cuvette
-		translate([0, 0, lid_height/2 - lid_thickness])
-		cube([cuvette_width, cuvette_depth, lid_height], center = true);
-		
-		// Hole for heater
-		translate([heater_pos, 0, -1])
-		cylinder(h = heater_offset + lid_height + 2, r = heater_diameter/2);
-		// Slot for the PCB holder arms
-		translate([slot_pos, -slot_depth/2, 0])
-		cube([slot_width, slot_depth, slot_height], center = false);
-		
-		// Service holes
-		translate([-lid_width/2 + lid_thickness + 5, -lid_depth/2 + lid_thickness + 3, (1/2)*lid_height])
-		cube([service_hole_width, service_hole_depth, service_hole_height]);
-		translate([lid_width/2 - lid_thickness - service_hole_width -5, -lid_depth/2 + lid_thickness + 3, (1/2)*lid_height])
-		cube([service_hole_width, service_hole_depth, service_hole_height]);
-
-	}
-}

cad/etching_machine/v2.0/roundy.scad

@@ -1,37 +0,0 @@
-/////////////////////////////////////////////////////////////////////////////////
-// Module for a open box with rounded edges.
-//
-// Author: 		Maximilian Stiefel
-// Last modification: 	26.04.2017
-/////////////////////////////////////////////////////////////////////////////////
-
-module roundy(width, depth, height, center)
-{
-/////////////////////////////////////////////////////////////////////////
-// Vars
-/////////////////////////////////////////////////////////////////////////
-edge_rounding = 8;
-transx = -width/2;
-transy = -depth/2;
-transz = -height/2;
-
-/////////////////////////////////////////////////////////////////////////
-// Action
-/////////////////////////////////////////////////////////////////////////
-// Hull 4 cylinders	
-translate([transx, transy, transz])
-hull(){
-	// x=0, y=0
-	translate([edge_rounding, edge_rounding, 0])
-	cylinder(r = edge_rounding, h = height);
-	// x=width, y=0
-	translate([width - edge_rounding, edge_rounding, 0])
-	cylinder(r = edge_rounding, h = height);
-	// x=0, y=depth
-	translate([edge_rounding, depth - edge_rounding,0])
-	cylinder(r = edge_rounding, h = height);
-	//x=width, y=length
-	translate([width - edge_rounding, depth - edge_rounding,0])
-	cylinder(r = edge_rounding, h = height);
-}
-}

cad/etching_machine/v2.0/test.step

@@ -1,37 +0,0 @@
-ISO-10303-21;
-HEADER;
-FILE_DESCRIPTION(('FreeCAD Model'),'2;1');
-FILE_NAME('/home/maximilian/UppSense/cad/etching_machine/v2.0/test.step'
-  ,'2017-06-17T18:55:45',('Author'),(''),
-  'Open CASCADE STEP processor 6.8','FreeCAD','Unknown');
-FILE_SCHEMA(('AUTOMOTIVE_DESIGN_CC2 { 1 2 10303 214 -1 1 5 4 }'));
-ENDSEC;
-DATA;
-#1 = APPLICATION_PROTOCOL_DEFINITION('committee draft',
-  'automotive_design',1997,#2);
-#2 = APPLICATION_CONTEXT(
-  'core data for automotive mechanical design processes');
-#3 = SHAPE_DEFINITION_REPRESENTATION(#4,#10);
-#4 = PRODUCT_DEFINITION_SHAPE('','',#5);
-#5 = PRODUCT_DEFINITION('design','',#6,#9);
-#6 = PRODUCT_DEFINITION_FORMATION('','',#7);
-#7 = PRODUCT('ASSEMBLY','ASSEMBLY','',(#8));
-#8 = MECHANICAL_CONTEXT('',#2,'mechanical');
-#9 = PRODUCT_DEFINITION_CONTEXT('part definition',#2,'design');
-#10 = SHAPE_REPRESENTATION('',(#11),#15);
-#11 = AXIS2_PLACEMENT_3D('',#12,#13,#14);
-#12 = CARTESIAN_POINT('',(0.,0.,0.));
-#13 = DIRECTION('',(0.,0.,1.));
-#14 = DIRECTION('',(1.,0.,-0.));
-#15 = ( GEOMETRIC_REPRESENTATION_CONTEXT(3) 
-GLOBAL_UNCERTAINTY_ASSIGNED_CONTEXT((#19)) GLOBAL_UNIT_ASSIGNED_CONTEXT(
-(#16,#17,#18)) REPRESENTATION_CONTEXT('Context #1',
-  '3D Context with UNIT and UNCERTAINTY') );
-#16 = ( LENGTH_UNIT() NAMED_UNIT(*) SI_UNIT(.MILLI.,.METRE.) );
-#17 = ( NAMED_UNIT(*) PLANE_ANGLE_UNIT() SI_UNIT($,.RADIAN.) );
-#18 = ( NAMED_UNIT(*) SI_UNIT($,.STERADIAN.) SOLID_ANGLE_UNIT() );
-#19 = UNCERTAINTY_MEASURE_WITH_UNIT(LENGTH_MEASURE(1.E-07),#16,
-  'distance_accuracy_value','confusion accuracy');
-#20 = PRODUCT_TYPE('part',$,(#7));
-ENDSEC;
-END-ISO-10303-21;

cad/mechanics_rev2/glass_slide_holder.scad

@@ -0,0 +1,35 @@
+/////////////////////////////////////////////////////////////////////////////////
+// LED illuminator to hide the LED from the receiver diode. 
+//
+// Author:              Maximilian Stiefel
+// Last modification:   22.06.2017
+/////////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////////
+// Includes
+/////////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////////
+// 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()
+{
+	cube([holder_width, holder_depth, holder_height]);
+	translate([(holder_width - glass_slide_width)/2, holder_depth - 1.25 - allowance, holder_height - glass_slide_thickness - allowance])
+	cube([glass_slide_width, holder_depth, 2]);
+}

cad/mechanics_rev2/glass_slide_holder.stl

@@ -0,0 +1,198 @@
+solid OpenSCAD_Model
+  facet normal -1 0 0
+    outer loop
+      vertex 0 0 0
+      vertex 0 3.5 16.5
+      vertex 0 3.5 0
+    endloop
+  endfacet
+  facet normal -1 -0 0
+    outer loop
+      vertex 0 3.5 16.5
+      vertex 0 0 0
+      vertex 0 0 16.5
+    endloop
+  endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex 2 3.5 16.5
+      vertex 0 3.5 16.5
+      vertex 2 1.75 16.5
+    endloop
+  endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex 28.5 1.75 16.5
+      vertex 30.5 3.5 16.5
+      vertex 28.5 3.5 16.5
+    endloop
+  endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex 30.5 3.5 16.5
+      vertex 28.5 1.75 16.5
+      vertex 30.5 0 16.5
+    endloop
+  endfacet
+  facet normal -0 0 1
+    outer loop
+      vertex 2 1.75 16.5
+      vertex 30.5 0 16.5
+      vertex 28.5 1.75 16.5
+    endloop
+  endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex 2 1.75 16.5
+      vertex 0 0 16.5
+      vertex 30.5 0 16.5
+    endloop
+  endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex 0 0 16.5
+      vertex 2 1.75 16.5
+      vertex 0 3.5 16.5
+    endloop
+  endfacet
+  facet normal 1 -0 0
+    outer loop
+      vertex 30.5 0 16.5
+      vertex 30.5 3.5 0
+      vertex 30.5 3.5 16.5
+    endloop
+  endfacet
+  facet normal 1 0 0
+    outer loop
+      vertex 30.5 3.5 0
+      vertex 30.5 0 16.5
+      vertex 30.5 0 0
+    endloop
+  endfacet
+  facet normal 0 1 0
+    outer loop
+      vertex 30.5 3.5 16.5
+      vertex 28.5 3.5 15
+      vertex 28.5 3.5 16.5
+    endloop
+  endfacet
+  facet normal 0 1 0
+    outer loop
+      vertex 28.5 3.5 15
+      vertex 30.5 3.5 0
+      vertex 2 3.5 15
+    endloop
+  endfacet
+  facet normal 0 1 -0
+    outer loop
+      vertex 30.5 3.5 0
+      vertex 28.5 3.5 15
+      vertex 30.5 3.5 16.5
+    endloop
+  endfacet
+  facet normal 0 1 -0
+    outer loop
+      vertex 2 3.5 15
+      vertex 0 3.5 16.5
+      vertex 2 3.5 16.5
+    endloop
+  endfacet
+  facet normal 0 1 0
+    outer loop
+      vertex 2 3.5 15
+      vertex 0 3.5 0
+      vertex 0 3.5 16.5
+    endloop
+  endfacet
+  facet normal 0 1 0
+    outer loop
+      vertex 0 3.5 0
+      vertex 2 3.5 15
+      vertex 30.5 3.5 0
+    endloop
+  endfacet
+  facet normal 0 0 -1
+    outer loop
+      vertex 0 0 0
+      vertex 30.5 3.5 0
+      vertex 30.5 0 0
+    endloop
+  endfacet
+  facet normal -0 0 -1
+    outer loop
+      vertex 30.5 3.5 0
+      vertex 0 0 0
+      vertex 0 3.5 0
+    endloop
+  endfacet
+  facet normal 0 -1 0
+    outer loop
+      vertex 0 0 0
+      vertex 30.5 0 16.5
+      vertex 0 0 16.5
+    endloop
+  endfacet
+  facet normal 0 -1 -0
+    outer loop
+      vertex 30.5 0 16.5
+      vertex 0 0 0
+      vertex 30.5 0 0
+    endloop
+  endfacet
+  facet normal 1 -0 0
+    outer loop
+      vertex 2 1.75 16.5
+      vertex 2 3.5 15
+      vertex 2 3.5 16.5
+    endloop
+  endfacet
+  facet normal 1 0 0
+    outer loop
+      vertex 2 3.5 15
+      vertex 2 1.75 16.5
+      vertex 2 1.75 15
+    endloop
+  endfacet
+  facet normal -1 0 0
+    outer loop
+      vertex 28.5 1.75 15
+      vertex 28.5 3.5 16.5
+      vertex 28.5 3.5 15
+    endloop
+  endfacet
+  facet normal -1 -0 0
+    outer loop
+      vertex 28.5 3.5 16.5
+      vertex 28.5 1.75 15
+      vertex 28.5 1.75 16.5
+    endloop
+  endfacet
+  facet normal -0 0 1
+    outer loop
+      vertex 2 3.5 15
+      vertex 28.5 1.75 15
+      vertex 28.5 3.5 15
+    endloop
+  endfacet
+  facet normal 0 0 1
+    outer loop
+      vertex 28.5 1.75 15
+      vertex 2 3.5 15
+      vertex 2 1.75 15
+    endloop
+  endfacet
+  facet normal 0 1 -0
+    outer loop
+      vertex 28.5 1.75 15
+      vertex 2 1.75 16.5
+      vertex 28.5 1.75 16.5
+    endloop
+  endfacet
+  facet normal 0 1 0
+    outer loop
+      vertex 2 1.75 16.5
+      vertex 28.5 1.75 15
+      vertex 2 1.75 15
+    endloop
+  endfacet
+endsolid OpenSCAD_Model

cad/mechanics_rev2/led_illuminator.scad

@@ -0,0 +1,35 @@
+/////////////////////////////////////////////////////////////////////////////////
+// LED illuminator to hide the LED from the receiver diode. 
+//
+// Author:              Maximilian Stiefel
+// Last modification:   22.06.2017
+/////////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////////
+// Includes
+/////////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////////
+// Vars
+/////////////////////////////////////////////////////////////////////////////////
+$fa = 0.5; // minimum facet angle is now 0.5
+$fs = 0.5; // minimum facet size is now 0.5 mm
+
+holder_height = 15;
+holder_diameter = 8.5;
+holder_hole_diameter = 6.5; // LED with 5 mm diameter should fit in
+holder_slot_width = 1;
+/////////////////////////////////////////////////////////////////////////////////
+// Action
+/////////////////////////////////////////////////////////////////////////////////
+difference()
+{
+	cylinder(h = holder_height, r = holder_diameter/2, center = true);
+	union()
+	{
+		translate([0, 0, 0])
+		cylinder(h = holder_height + 2, r = holder_hole_diameter/2, center = true);
+		translate([0, holder_diameter/2, 0])
+		cube([holder_slot_width, 2*(holder_diameter-holder_hole_diameter), holder_height + 2], center = true);
+	}
+}

cad/mechanics_rev2/spacers.scad

@@ -0,0 +1,31 @@
+/////////////////////////////////////////////////////////////////////////////////
+// Spacer for PCBs.
+//
+// Author:              Maximilian Stiefel
+// Last modification:   22.06.2017
+/////////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////////
+// Includes
+/////////////////////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////////////////////
+// Vars
+/////////////////////////////////////////////////////////////////////////////////
+$fa = 0.5; // minimum facet angle is now 0.5
+$fs = 0.5; // minimum facet size is now 0.5 mm
+
+spacer_height = 15;
+spacer_diameter = 5;
+spacer_hole_diameter = 3.2; // standard hole size for M3
+
+/////////////////////////////////////////////////////////////////////////////////
+// Action
+/////////////////////////////////////////////////////////////////////////////////
+difference()
+{
+	cylinder(h = spacer_height, r = spacer_diameter/2, center = true);
+	translate([0, 0, 0])
+	cylinder(h = spacer_height + 2, r = spacer_hole_diameter/2, center = true);
+}
+

pcbs/analog_board/analog_board.kicad_pcb

@@ -5,7 +5,7 @@
     (no_connects 0)
     (area 87.150001 71.8 191.85 137.700001)
     (thickness 1.6)
-    (drawings 22)
+    (drawings 23)
     (tracks 179)
     (zones 0)
     (modules 54)
@@ -31,13 +31,13 @@
     (44 Edge.Cuts user)
     (45 Margin user hide)
     (46 B.CrtYd user hide)
-    (47 F.CrtYd user hide)
+    (47 F.CrtYd user)
     (48 B.Fab user hide)
-    (49 F.Fab user hide)
+    (49 F.Fab user)
   )
 
   (setup
-    (last_trace_width 0.3)
+    (last_trace_width 0.25)
     (user_trace_width 0.2)
     (user_trace_width 0.3)
     (user_trace_width 0.5)
@@ -1594,6 +1594,18 @@
       (net 2 GND))
   )
 
+  (dimension 35 (width 0.3) (layer Dwgs.User)
+    (gr_text "35,000 mm" (at 117.5 109.35) (layer Dwgs.User)
+      (effects (font (size 1.5 1.5) (thickness 0.3)))
+    )
+    (feature1 (pts (xy 100 105) (xy 100 110.7)))
+    (feature2 (pts (xy 135 105) (xy 135 110.7)))
+    (crossbar (pts (xy 135 108) (xy 100 108)))
+    (arrow1a (pts (xy 100 108) (xy 101.126504 107.413579)))
+    (arrow1b (pts (xy 100 108) (xy 101.126504 108.586421)))
+    (arrow2a (pts (xy 135 108) (xy 133.873496 107.413579)))
+    (arrow2b (pts (xy 135 108) (xy 133.873496 108.586421)))
+  )
   (gr_text "< 1" (at 124.714 100.33) (layer F.Cu)
     (effects (font (size 0.8 0.8) (thickness 0.1)) (justify left))
   )

pcbs/analog_board/analog_board.kicad_pcb-bak

@@ -3,7 +3,7 @@
   (general
     (links 90)
     (no_connects 0)
-    (area 99.949999 79.949999 180.050001 130.050001)
+    (area 87.150001 71.8 191.85 137.700001)
     (thickness 1.6)
     (drawings 22)
     (tracks 179)
@@ -72,7 +72,7 @@
     (aux_axis_origin 0 0)
     (visible_elements FFFFFF1F)
     (pcbplotparams
-      (layerselection 0x00030_80000001)
+      (layerselection 0x00000_80000001)
       (usegerberextensions false)
       (excludeedgelayer true)
       (linewidth 0.100000)
@@ -91,7 +91,7 @@
       (plotinvisibletext false)
       (padsonsilk false)
       (subtractmaskfromsilk false)
-      (outputformat 1)
+      (outputformat 2)
       (mirror false)
       (drillshape 1)
       (scaleselection 1)