Add power inlet, fix broken wall calculation

Signed-off-by: Knut Ahlers <knut@ahlers.me>

README.md

@@ -6,4 +6,4 @@ In case you have use for those models thankfully to Github you can preview all m
 
 | Model | Source | Version | Title |
 | ----- | ------ | ------- | ----- |
-| [`sonoff_dev_housing.stl`](sonoff_dev_housing.stl) | [`sonoff_dev_housing.jscad`](sonoff_dev_housing.jscad) | 0.2.2 | Sonoff DEV box for lamp post |
+| [`sonoff_dev_housing.stl`](sonoff_dev_housing.stl) | [`sonoff_dev_housing.jscad`](sonoff_dev_housing.jscad) | 0.2.3 | Sonoff DEV box for lamp post |

sonoff_dev_housing.jscad

@@ -1,22 +1,25 @@
 // title      : Sonoff DEV box for lamp post
 // author     : Knut Ahlers
-// revision   : 0.2.2
+// revision   : 0.2.3
 
 // All measurements in mm
-const innerSpace = 7 // free room on the inside from the board not to bend the cables that hard
+const boardSize = 51 // 51x51mm
-const innerSpaceHeight = 30
+const boardSupportHeight = 6 // pins to put the board on
-const boardSize = 50 // 50x50mm
+const boardSupportRadius = 1.25
-const boardSupportHeight = 10 // 10mm pins to put the board on
-const boardSupportRadius = 2
 const boardSupportEdgeDist = 2.5 // 2.5mm from the edges
+const innerSpace = 7 // free room on the inside from the board not to bend the cables that hard
+const innerSpaceHeight = 20
 const lampPostRadius = 7 // 14mm diameter
 const lampPostSupport = lampPostRadius + 4.5 // adjust for proper grip
+const powerInletHeight = 8 // Size of power adapter
+const powerInletWidth = 14 // Size of power adapter
+const powerInletPosY = boardSize / -2 + 13 + powerInletWidth / 2
 const screwBaseSize = 3 // block to screw the screw into
 const screwHeadRadius = 1.25 // screw head diameter = 2*screwHeadRadius
 const screwRadius = 0.7 // radius for the hole the screw is screwed into
 const ventSize = 1
 const ventWidth = (boardSize + innerSpace - 5 * ventSize) / 2
-const wall = 2.5 // wall thickness
+const wall = 1.5 // wall thickness
 
 function addVents(obj) {
   const ventRow = difference(
@@ -85,15 +88,18 @@ function main() {
     // Housing without lid
     union(
       // Housing with holder
+      difference(
+        union(
           addVents(
             difference(
               union(
                 // Main housing block
                 cube({ size: [
-              boardSize + innerSpace + wall,
+                  boardSize + innerSpace + wall*2,
-              boardSize + innerSpace + wall,
+                  boardSize + innerSpace + wall*2,
                   innerSpaceHeight + wall,
                 ], center: true }),
+
                 // Lamp post holder
                 difference(
                   cylinder({
@@ -107,7 +113,7 @@ function main() {
                     r: lampPostRadius,
                     center: true,
                     resolution: 100,
-              }).translate([-7.5, 0, 0])
+                  }).translate([lampPostRadius * -1, 0, 0])
                 )
                 .rotateY(90)
                 .translate([0, 0, (innerSpaceHeight + wall)/2])
@@ -118,9 +124,25 @@ function main() {
                 boardSize + innerSpace,
                 boardSize + innerSpace,
                 innerSpaceHeight,
-          ], center: true }).translate([0, 0, wall * -1])
+              ], center: true }).translate([0, 0, wall * -0.5])
             )
           ),
+          // Outer border of power inlet
+          cube({ size: [wall, powerInletWidth + wall * 2, powerInletHeight + wall * 2], center: true })
+          .translate([
+            (boardSize + innerSpace + wall) / 2,
+            powerInletPosY,
+            (innerSpaceHeight + wall) / 2 - (wall + powerInletHeight / 2)
+          ])
+        ),
+        // Inner space of power inlet
+        cube({ size: [wall, powerInletWidth, powerInletHeight], center: true})
+        .translate([
+          (boardSize + innerSpace + wall) / 2,
+          powerInletPosY,
+          (innerSpaceHeight + wall) / 2 - (wall + powerInletHeight / 2)
+        ])
+      ),
 
       // Board supports
       translate([
@@ -170,8 +192,8 @@ function main() {
     // Lid
     difference(
       cube({ size: [
-        boardSize + innerSpace + wall,
+        boardSize + innerSpace + wall * 2,
-        boardSize + innerSpace + wall,
+        boardSize + innerSpace + wall * 2,
         wall,
       ], center: true }),