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.
2026-09-12 01:29:29 +00:00 · 2015-08-01 22:26:42 -07:00
parent b70f1d9506
commit fcec6d6100
4 changed files with 1142 additions and 0 deletions
@@ -0,0 +1,152 @@
+include <pp_h1_parameters.scad>
+
+$fs=0.1;
+
+module attach_corner() {
+    circle(attach_foot_r);
+    polygon([[-10, -10],[attach_foot_r, -10],[attach_foot_r, 0],[0, attach_foot_r],[-10, attach_foot_r]]);
+}
+
+module attach_side() {
+    circle(attach_foot_r);
+    translate([0, -attach_foot_r]) square([10, attach_foot_r * 2]);
+}
+
+module attach_center() {
+    circle(attach_foot_r);
+}
+
+module pcb_supports() {
+    translate(mounting_drills[0]) attach_corner();
+    translate(mounting_drills[1]) rotate(90) attach_side();
+    translate(mounting_drills[2]) rotate(90) attach_corner();
+    translate(mounting_drills[3]) rotate(270) attach_corner();
+    translate(mounting_drills[4]) attach_center();
+    translate(mounting_drills[5]) rotate(180) attach_corner();
+}
+
+module pcb_attach_drill_outline() {
+    circle(r=attach_drill_r);
+}
+
+module pcb_attach_drills_outline() {
+    for(p = mounting_drills) {
+        translate(p) pcb_attach_drill_outline();
+    }
+}
+
+module pcb_attach_drills_volume() {
+    translate([0, 0, -pcb_attach_drills_depth]) linear_extrude(height=30) {
+        pcb_attach_drills_outline();
+    }
+}
+
+module case_bottom_void_edge() {
+    // Edge of PCB, plus case clearance, minus board supports.
+    difference() {
+        pcb_outline_clearance();
+        pcb_supports();
+    }
+}
+
+module case_bottom_void_tool_path() {
+    // Tool path to cut bottom of case.
+    offset(r=-case_bottom_tool_r) {
+        case_bottom_void_edge();
+    }
+}
+
+module case_bottom_void_tool_volume_ball() {
+    $fs=2;
+    $fn=18;
+    // Tool cut volume for bottom of case.
+    // Z=0 at bottom plane of H1 PCB
+    translate([0, 0, -h1_pcb_bottom_clearance + case_bottom_tool_r]) minkowski() {
+        linear_extrude(height=50, convexity=10) {
+            case_bottom_void_tool_path();
+        }
+        sphere(r=case_bottom_tool_r);
+    }
+}
+
+module case_outer_volume_radiused() {
+    $fs=2;
+    $fn=18;
+    tool_r = case_bottom_tool_r + case_thickness;
+    tz = h1_pcb_bottom_clearance + case_bottom_thickness - tool_r;
+    difference() {
+        // Rounded volume
+        translate([0, 0, -tz]) {
+            minkowski() {
+                linear_extrude(height=30, convexity=10) {
+                    offset(r=-case_bottom_tool_r) {
+                        pcb_outline_clearance();
+                    }
+                }
+                sphere(r=tool_r);
+            }
+        }
+        
+        // Cut off the top.
+        translate([-10, -10, case_height_above_datum]) cube([200, 200, 200]);
+    }
+}
+
+module case_bottom_void_tool_volume_end() {
+    // Tool cut volume for bottom of case.
+    // Z=0 at bottom plane of H1 PCB
+    translate([0, 0, -h1_pcb_bottom_clearance]) {
+        linear_extrude(height=50) {
+            minkowski() {
+                case_bottom_void_tool_path();
+                circle(r=case_bottom_tool_r);
+            }
+        }
+    }
+}
+
+module case_bumper_emboss_outline() {
+    circle(r=case_bumper_d / 2 + case_bumper_clearance);
+}
+
+module case_bumper_emboss_tool() {
+    height = 10;
+    translate([0, 0, -height]) linear_extrude(height=height) {
+        case_bumper_emboss_outline();
+    }
+}
+
+module case_bumpers_emboss() {
+    tz = case_height_below_datum - case_bumper_emboss_depth;
+    translate([0, 0, -tz]) {
+        translate([case_bumper_inset_from_pcb_edge, case_bumper_inset_from_pcb_edge, 0]) case_bumper_emboss_tool();
+        translate([pcb_l - case_bumper_inset_from_pcb_edge, case_bumper_inset_from_pcb_edge, 0]) case_bumper_emboss_tool();
+        translate([case_bumper_inset_from_pcb_edge, pcb_w - case_bumper_inset_from_pcb_edge, 0]) case_bumper_emboss_tool();
+        translate([pcb_l - case_bumper_inset_from_pcb_edge, pcb_w - case_bumper_inset_from_pcb_edge, 0]) case_bumper_emboss_tool();
+    }
+}
+
+module case_pcb_plane_void_tool_edge() {
+    offset(r=-pcb_corner_r) {
+        pcb_outline_clearance();
+    }
+}
+
+module case_pcb_plane_void_tool_volume() {
+    linear_extrude(height=30, convexity=10) {
+        minkowski() {
+            case_pcb_plane_void_tool_edge();
+            circle(r=pcb_corner_r);
+        }
+    }
+}
+
+module case_outer_volume_squared() {
+    t = case_bottom_thickness + h1_pcb_bottom_clearance;
+    translate([0, 0, -t]) linear_extrude(height=t + case_height_above_datum) {
+        minkowski() {
+            pcb_outline();
+            circle(r=pcb_case_clearance + case_thickness);
+        }
+    }
+}