more messing with OpenSCAD

README.rst

@@ -149,7 +149,18 @@ as we can detect a barrier.
 
 Alternatives are the `Sharp Infrared distance sensors <http://www.sharpsma.com/webfm_send/1489>`_ or similar.
 
+Photos
+======
+
 .. image:: img/teenyrobots.jpg
     :width: 90%
     :class: center
 
+.. image:: img/ciril-proto.jpg
+    :width: 90%
+    :class: center
+
+.. image:: img/ciril-wheels.png
+    :width: 90%
+    :class: center
+

openscad/wheel-gears.scad

@@ -0,0 +1,68 @@
+use <MCAD/involute_gears.scad>
+
+$fn=150;
+
+module wheel() {
+    color("black") translate([0,0,5]) rotate_extrude($fn=200) translate([52,0,0]) circle(d=10);
+
+    difference() {
+        union() {
+            cylinder(d=25, h=10);
+            difference() {
+                rotate_extrude($fn=200) polygon( points=[[0,0],[50,0],[50,2],[48,4],[48,6],[50,8],[50,10],[0,10]] );
+                translate([0,0,3]) gear (
+                        number_of_teeth = 135,
+                        circular_pitch=100,
+                        bore_diameter=0,
+                        gear_thickness=20    
+                 );
+            }
+        }
+        cylinder(d=5,h=12);
+    };
+
+  color("red") translate([30,10,5]) union() {
+    gear(
+        number_of_teeth=8,
+        circular_pitch=100,
+        hub_diameter=4
+    );
+    cylinder(d=4,h=20);
+    translate([0,0,10]) cylinder(d=20,h=30);
+  }
+
+}
+
+translate([40,0,0]) rotate([180,90,0]) wheel();
+translate([-40,0,0]) rotate([0,90,0]) wheel();
+
+color("silver") rotate([0,90,0]) cylinder(d=3,h=100,center=true);
+
+difference() {
+    sphere(d=150);
+    sphere(d=144);
+    translate([0,0,75]) cube([150,150,150], center=true);
+    translate([0,0,-115]) cube([150,150,150], center=true);
+}
+
+intersection() {
+    difference() {
+        sphere(d=150);
+        translate([0,0,75]) cube([150,150,150], center=true);
+        translate([0,0,-115]) cube([150,150,150], center=true);
+    }
+    union() {
+        translate([60,0,0]) rotate([0,90,0]) cylinder(d=10,h=30,center=true);
+        translate([-60,0,0]) rotate([0,90,0]) cylinder(d=10,h=30,center=true);
+
+        translate([45,0,0]) cube([2,150,150], center=true);
+        translate([-45,0,0]) cube([2,150,150], center=true);
+        translate([25,0,0]) cube([2,150,150], center=true);
+        translate([-25,0,0]) cube([2,150,150], center=true);
+
+        translate([60,0,0]) cube([30,2,150], center=true);
+        translate([-60,0,0]) cube([30,2,150], center=true);
+        translate([0,0,-40]) cube([50,150,2], center=true);
+    }
+}
+