draft solar-charger mount

cad/roof2.scad

@@ -0,0 +1,81 @@
+$fn = 50;
+
+width = 160;
+length = 90;
+height = 18;
+
+horiz_tolerance = 0.8;
+vert_tolerance = 0.8;
+edge_radius = 4;
+
+charger_width = 145;
+charger_length = 74;
+charger_height = 15;
+
+use <box.scad>
+
+module charger() {
+    cube([charger_width,charger_length,charger_height]);
+}
+
+module screwhole() {
+    translate([0,0,-12]) cylinder(r=2, h=12);
+}
+
+module centerwasher() {
+    translate([width/2, length/2, -0.2]) cylinder($fn=6, r=4, h=3);
+}
+
+module roof2() {
+    difference() {
+        minkowski() {
+            translate([edge_radius,edge_radius,0]) cube([width-edge_radius*2,length-edge_radius*2,height]);
+            cylinder(r=edge_radius, h=0.2);
+        }
+        minkowski() {
+            translate([width/2-charger_width/2, length/2-charger_length/2, height-charger_height-vert_tolerance+0.4]) charger();
+            cylinder(r=horiz_tolerance/2,h=vert_tolerance);
+        }
+        screwhole_offset = 5;
+        translate([screwhole_offset,screwhole_offset,height+0.4]) screwhole();
+        translate([width-screwhole_offset,screwhole_offset,height+0.4]) screwhole();
+        translate([screwhole_offset,length-screwhole_offset,height+0.4]) screwhole();
+        translate([width-screwhole_offset,length-screwhole_offset,height+0.4]) screwhole();
+        
+        translate([0,-23,0]) centerwasher();
+        translate([-23,5,0]) centerwasher();
+        translate([23,5,0]) centerwasher();
+    }
+}
+
+//rotate([30,0,0])
+    roof2();
+
+%difference() {
+    angle = 30;
+    mount_height = sin(angle)*length;
+    rotate([angle,0,0]) translate([width*0.125,0,-mount_height]) cube([width*0.75,4,mount_height]);
+    rotate([-angle,0,180]) translate([-width*0.25,0.4,-25]) mount();
+    rotate([-angle,0,180]) translate([-width*0.75,0.4,-25]) mount();
+}
+
+module mount2() {
+    thickness = 4;
+    difference() {
+        translate([width/2,length/2,-thickness]) cylinder(r=30, h=thickness);
+        translate([0,-23,-thickness]) translate([width/2, length/2, -0.2]) cylinder($fn=50, r=2, h=4+0.4);
+        translate([-23,5,-thickness]) translate([width/2, length/2, -0.2]) cylinder($fn=50, r=2, h=4+0.4);
+        translate([23,5,-thickness]) translate([width/2, length/2, -0.2]) cylinder($fn=50, r=2, h=4+0.4);
+    }
+    difference() {
+        translate([width/2,length/2-8,10]) rotate([210,0,0]) difference() {
+            union() {
+                cylinder(r=16, h=50, center=false);
+                rotate([-210,0,0]) translate([0,8+6,-thickness-15-10]) cylinder(r1=14, r2=17, h=15);
+            }
+            cylinder(r=10, h=50+0.4, center=false);
+        }
+            translate([width/2,length/2,0]) cylinder(r=100, h=100);
+    }
+}
+%mount2();