Final adjustment to get a working print

3d-models/battery-case/case.scad

@@ -23,13 +23,16 @@ battery_contact_flange_height = 1.9;
 
 */
 
-cell_diameter = 18.5;
-cell_length = 68.5;
+cell_diameter = 19.5;
+cell_length = 73;
 converter_height = 6;
 converter_length = 22.25;
 converter_width = 11.25;
 spring_height = 7;
 wire_radius = 1;
+switch_length = 12;
+switch_width = 4.5;
+switch_height = 8;
 
 wall_thickness = 4;
 interior_wall_thickness = 2;
@@ -71,20 +74,20 @@ module outer_enclosure(dimensions) {
             rounded_cube([wall_thickness, width, height], bevel = bevel);
         translate([length / 2, 0, 0])
             rounded_cube([wall_thickness, width, height], bevel = bevel);
-        /*
-        translate([length / 2, 0, 0])
-            rounded_cube([wall_thickness, width, height], bevel = bevel);
-            */
     }
 }
 
 module sled_slot(length) {
     difference() {
         rounded_cube([length, 2, 4], bevel = bevel);
-        translate([length / 2 - 8, 0, 2]) rotate([90, 0, 0]) cylinder(h = 4, r = 1, center = true);
+        translate([length / 2 - 8, 0, 2]) rotate([90, 0, 0]) cylinder(h = 4, r = 2, center = true);
     }
 }
 
+module switch() {
+    rounded_cube([switch_length, switch_width, switch_height]);
+}
+
 module enclosure() {
     length = cell_length + spring_height + converter_height + interior_wall_thickness * 3;
     width = cell_diameter * 2 + wall_thickness * 3;
@@ -110,7 +113,7 @@ module enclosure() {
             rounded_cube([wall_thickness * 2, wire_radius * 2, wire_radius * 8], bevel = bevel);
 
         // This one extends back into the battery container
-        translate([0, width / 2 - wall_thickness, -height / 2 + wire_radius * 8])
+        translate([0, width / 2 - wall_thickness, -height / 2 + wire_radius * 8 + 2])
             rounded_cube([length, wire_radius * 2 + clearance, wire_radius * 8], bevel = bevel);
 
         // Now let's cut out some sleds for the lid
@@ -118,6 +121,8 @@ module enclosure() {
             sled_slot(length);
         color("red") translate([-4, -width / 2 + wire_radius, height / 4])
             sled_slot(length);
+
+        translate([length / 2, width / 2 - wall_thickness * 2 - 1, 0]) rotate([0, 90, 0]) switch();
     }
 }
 

3d-models/tracks/tracks.scad

@@ -0,0 +1,35 @@
+$fn = 50;
+clearance = 0.1;
+bevel = 0.5;
+
+bead_radius = 7.5;
+thickness = 2;
+height = 4;
+
+include <../common/lib.scad>;
+
+
+
+module slot() {
+    difference() {
+        cylinder(r = bead_radius + thickness, h = height, center = true);
+        translate([0, 0, thickness + clearance])
+            cylinder(r = bead_radius + clearance, h = height + clearance, center = true);
+    }
+}
+
+module track(count) {
+    length = (bead_radius * 2 + 5) * count;
+
+    for(x = [ 0 : 1 : count - 1 ]) {
+        translate([(bead_radius * 2 + 5) * x, 0, 0]) slot();
+    }
+
+    translate([length / 2 - bead_radius - thickness - 0.5, 0, -thickness / 2])
+        rounded_cube([length - 3, 8, thickness], bevel = bevel);
+}
+
+track(3);
+translate([0, 20, 0]) track(4);
+translate([0, 40, 0]) track(6);
+