Add eink_2-13_case

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

README.md

@@ -7,6 +7,7 @@ In case you have use for those models thankfully to Github you can preview all m
 | Model | Source | Version | Title |
 | ----- | ------ | ------- | ----- |
 | [`change-holder.stl`](change-holder.stl) | [`change-holder.jscad`](change-holder.jscad) | 0.1.1 | Spare-Change holder |
+| [`eink_2-13_case.stl`](eink_2-13_case.stl) | [`eink_2-13_case.jscad`](eink_2-13_case.jscad) | 0.1.1 | Case for 2.13" Lilygo eink display |
 | [`pir-holder.stl`](pir-holder.stl) | [`pir-holder.jscad`](pir-holder.jscad) | 0.1.1 | PIR holder |
 | [`razorholder.stl`](razorholder.stl) | [`razorholder.jscad`](razorholder.jscad) | 0.1.1 | Holder for T-Shape razor |
 | [`sonoff_dev_housing.stl`](sonoff_dev_housing.stl) | [`sonoff_dev_housing.jscad`](sonoff_dev_housing.jscad) | 0.2.6 | Sonoff DEV box for lamp post |

eink_2-13_case.jscad

@@ -0,0 +1,62 @@
+/*
+ * title      : Case for 2.13" Lilygo eink display
+ * author     : Knut Ahlers
+ * revision   : 0.1.1
+ */
+
+const boardD = 6
+const boardH = 37 + 4
+const boardW = 67
+
+const displayH = 25
+const displayW = 49.5
+
+const wall = 2
+
+const genCap = () => difference(
+  cube({ size: [boardW + 2 * wall, boardH + 2 * wall, wall], center: true }),
+  cube({ size: [wall, wall, wall], center: true })
+    .translate([boardW / 2 + wall / 2, boardH / 2 + wall / 2, 0]),
+  cube({ size: [wall, wall, wall], center: true })
+    .translate([boardW / -2 + wall / -2, boardH / 2 + wall / 2, 0]),
+  cube({ size: [wall, wall, wall], center: true })
+    .translate([boardW / 2 + wall / 2, boardH / -2 + wall / -2, 0]),
+  cube({ size: [wall, wall, wall], center: true })
+    .translate([boardW / -2 + wall / -2, boardH / -2 + wall / -2, 0])
+)
+
+const genInner = () => union(
+  // Inner without holding cylinders
+  difference(
+    cube({ size: [boardW, boardH, boardD], center: true }),
+    cylinder({ h: boardD, r: 1, center: true })
+      .translate([31, 16.5, 0]),
+    cylinder({ h: boardD, r: 1, center: true })
+      .translate([-31, 16.5, 0]),
+    cylinder({ h: boardD, r: 1, center: true })
+      .translate([31, -16.5, 0]),
+    cylinder({ h: boardD, r: 1, center: true })
+      .translate([-31, -16.5, 0])
+  ),
+  // Display cut-out
+  cube({ size: [displayW, displayH, wall], center: true })
+    .translate([boardW / -2 + displayW / 2 + 3, 0, boardD / -2 + wall / -2]),
+  // Port cut-out
+  cube({ size: [9, wall, boardD], center: true })
+    .translate([boardW / 2 - 4.5 - 19.5, boardH / -2 + wall / -2])
+)
+
+/* exported main */
+function main () {
+  return union(
+    difference(
+      // Block
+      cube({ size: [boardW + 2 * wall, boardH + 2 * wall, boardD + 2 * wall], center: true }),
+      genInner(),
+      genCap().translate([0, 0, boardD / 2 + wall / 2])
+    ),
+    genCap().translate([0, 2 * boardH, 0])
+  )
+}
+
+// vim: set ft=javascript: