More chassis modifications

- Adjusted battery supports position - Added holes tothe battery supports for placing screws
dreamster · Sep 19, 2015 · ff6c3a7 · ff6c3a7
1 parent 477be7e
commit ff6c3a7
Showing 1 changed file with 40 additions and 28 deletions.
diff --git a/openscad/dreamster-chassis.scad b/openscad/dreamster-chassis.scad
@@ -15,14 +15,16 @@ thickness_wall = 3.5;
 dreamster_base_r = 140/2;
 dreamster_base_thickness = 3;
 
-arduino_base_depth = 80;
+arduino_base_depth = 84;
 arduino_base_width = 65;
 arduino_base_height_wall = 25+8+1.5;
 arduino_base_thickness = 3;
 
 battery_hole_depth = 60;
 battery_hole_width = 37.5;
 
+battery_support_height = 22;
+
 mount_holes_diameter = 3;
 hole_width = 40;
 hole_depth = 50;
@@ -86,6 +88,15 @@ module ball_caster() {
   }
 }
 
+module ball_caster() {
+    translate([0, 15, 0]) {
+        sphere(r = 3, $fn=50); 
+    }  
+    translate([0, 0, 0]) {
+        sphere(r = 3, $fn=50); 
+    }
+ }
+
 module base() {
   difference() {
     cube([width, depth, thickness], center=true);
@@ -164,20 +175,13 @@ module holes() {
   translate([0, depth/2-5, 0]) ball_caster();
 }
 
+
+//-------------------------------
+
 module dreamster_base_holes() {
-    translate([17, -depth/2 + 13, 0]) {
-    cube([10, 10, 3], center=false);
-    }
-    translate ([20, -depth/2 + 74, -5]) {
-    cylinder (h = 20, r = 1.775);
-    }
-    translate ([-8.5, -depth/2 + 74, -5]) {
-    cylinder (h = 20, r = 1.775);
-    }
-    translate ([-22.5, -depth/2 + 24, -5]) {
-    cylinder (h = 20, r = 1.775);
-    }
     translate([0, depth/2-5, 0]) ball_caster();
+    translate([battery_hole_width/2, battery_hole_depth/2 + 3.5 + 5.25, -5]) cylinder(r = 3.5/2, 35);
+    translate([-battery_hole_width/2, -(battery_hole_depth/2 + 3.5 + 5.25), -5]) cylinder(r = 3.5/2, 35);
 }
 
 module arduino_holes() {
@@ -196,6 +200,8 @@ module arduino_holes() {
     translate([2, -hole_pos_y, 0]) {
         cube([hole_width, hole_depth, thickness+2], 1, center=true);
     }    
+    translate([battery_hole_width/2, battery_hole_depth/2 + 3.5 + 5.25, -5]) cylinder(r = 3.5/2, 35);
+    translate([-battery_hole_width/2, -(battery_hole_depth/2 + 3.5 + 5.25), -5]) cylinder(r = 3.5/2, 35);
 }
 
 module wheels_holes() {
@@ -205,50 +211,56 @@ module wheels_holes() {
 module battery_supports() {
     translate([battery_hole_width/2, battery_hole_depth/2 + 3.5 + 5.25, 0]) {
         union() {
-            cube([14, 7, 15], center=true);           
+            cube([14, 7, 22], center=true);           
             translate([3.5, -3.5, 0]) {
-                cube([7, 14, 15], center=true);          
+                cube([7, 14, 22], center=true);          
             }
         }
     }
-    
+
     translate([-battery_hole_width/2, -(battery_hole_depth/2 + 3.5 + 5.25), 0]) {
         rotate([0, 0, 180]) {
             union() {
-                cube([14, 7, 15], center=true);           
+                cube([14, 7, battery_support_height], center=true);           
                 translate([3.5, -3.5, 0]) {
-                    cube([7, 14, 15], center=true);          
+                    cube([7, 14, battery_support_height], center=true);          
                 }
             }
         }
     }
-}
+ }
 
 module arduino_base() {
     difference() {
         cube([arduino_base_width, arduino_base_depth, arduino_base_thickness - 1], center=true);   
-        arduino_holes();  
+        arduino_holes();
     }
 }
 
 module dreamster_base() {
     difference() {
-        cylinder (h = dreamster_base_thickness, r = dreamster_base_r, center = true);  
-        translate([0, 0, -1]) {
-            cube([battery_hole_width, battery_hole_depth, dreamster_base_thickness + 2], center=true); 
+       union() {
+           difference() {
+                cylinder (h = dreamster_base_thickness, r = dreamster_base_r, center = true);  
+                translate([0, 0, -1]) {
+                    cube([battery_hole_width, battery_hole_depth, dreamster_base_thickness + 2], center=true); 
+                }
+            }
+            translate([0, 0, dreamster_base_thickness + battery_support_height/2 - 2]) {
+                battery_supports();
+            }
         }
+        dreamster_base_holes();
     }
-}
+ }
 
 
 //------------------------
 
-  translate([0, 0, 20]) {
+  translate([0, 0, 25]) {
       arduino_base();
   }
-  translate([0, 0, dreamster_base_thickness]) {
-    battery_supports();
-  }
+
   dreamster_base();
 
 //difference() {