OpenSCAD version of case.

Minor changes were made between this version and the final version. This earlier version is available via Shapeways, at https://www.shapeways.com/product/EGG3EWPAY/portapack-h1-case-round-20150410-0945

Addresses issue #30.

hardware/portapack_h1/case/pp_h1_parameters.scad

@@ -0,0 +1,64 @@
+pcb_l = 120;
+pcb_w = 75;
+pcb_corner_r = 4;
+pcb_hole_r = 3.2 / 2;
+pcb_hole_pad_r = 5.6 / 2;
+
+h1_pcb_thickness = 1.64;
+pp_h1_pcb_thickness = 1.56;
+
+spacer_height = 0.5 * 25.4;
+
+bolt_drill_d = 3.0;
+pcb_attach_drills_depth = 4.0;
+
+pcb_case_clearance = 0.5;
+case_thickness = 1.5;
+case_bottom_thickness = case_thickness * 2;
+h1_pcb_bottom_clearance = 4.0;
+case_bottom_tool_r = 3.0;
+case_lid_thickness = 0.125 * 25.4;
+
+case_height_above_datum = h1_pcb_thickness + spacer_height + pp_h1_pcb_thickness + case_lid_thickness;
+case_height_below_datum = case_bottom_thickness + h1_pcb_bottom_clearance;
+case_height = case_height_below_datum + case_height_above_datum;
+
+attach_foot_r = pcb_hole_pad_r;
+attach_drill_r = bolt_drill_d / 2.0;
+
+case_bumper_d = 0.5 * 25.4;
+case_bumper_clearance = 0.5;
+case_bumper_emboss_depth = 1.0;
+
+case_radiused = true;
+
+case_bumper_inset_from_pcb_edge = case_radiused ? 10.0 : 8.0;
+
+mounting_drills = [
+    [4, 4],
+    [66, pcb_w - 4],
+    [116, 4],
+    [4, pcb_w - 4],
+    [71, pcb_w - 44],
+    [116, pcb_w - 4]
+];
+
+module pcb_extents() {
+    square([pcb_l, pcb_w]);
+}
+
+module pcb_outline() {
+    minkowski() {
+        offset(r=-pcb_corner_r) {
+            pcb_extents();
+        }
+        circle(r=pcb_corner_r);
+    }
+}
+
+module pcb_outline_clearance() {
+    minkowski() {
+        pcb_outline();
+        circle(r=pcb_case_clearance);
+    }
+}