Use a baseplate rather than a faceplate

openscad/enclosure.scad

@@ -1,78 +1,56 @@
-$fn=50;
-
 include <BOSL/constants.scad>
 use <BOSL/math.scad>
 use <BOSL/transforms.scad>
 
-depth = 1;
-plate_depth = 3;
-faceplate_angle = 20;
+$fn = $preview ? 30 : 50;
 
-key_u = 19.05;               // Width of 1 key unit
-keyswitch_cutout_width = 14; // Width of key switch cutout
-keys = 3;                    // Number of key switches
-key_width = key_u;           // With of a 1u keycap
-key_gap = 2;                 // Expands the key cutout in each direction
-key_distance = 3;            // Spacing between keys
-dial_diameter = 20;          // Diameter of the dial, used for spacing
-dial_post_diameter = 7;      // Diameter of the post passing through the faceplate
-dial_gap = 2;                // Expands the dial cutout in each direction
-dial_distance = 20;          // Space between the dial and the keypad
-
-faceplate_margin = 10;
 plate_margin = 5;
+plate_thickness = 1.5;
 
-key_cutout_width = key_width + (key_gap * 2);
-keys_width = (key_cutout_width * keys) + (key_distance * (keys - 1));
-faceplate_width = sum([faceplate_margin,
-                       dial_diameter,
-                       dial_distance,
-                       keys_width,
-                       faceplate_margin]);
-faceplate_interfaceplate_height = max(key_width, dial_diameter);
-faceplate_height = faceplate_interfaceplate_height + (faceplate_margin * 2);
+// Number of key switches
+keys = 3;
+// Spacing between keys
+key_distance = 0;
+// With of a 1u keycap
+key_width = 19.05;
+// Width of key switch cutout
+keyswitch_cutout_width = 14;
 
-module faceplate() {
+// Diameter of the dial, used for spacing
+dial_diameter = 20;
+dial_base_width = 12.85;
+dial_base_height = 16.75;
+// Space between the dial and the keypad
+dial_distance = 5;
 
+keys_width = (key_width * keys) + (key_distance * (keys - 1));
+keys_height = key_width;
+
+module support_plate() {
   difference() {
-    cube([faceplate_width, faceplate_height, depth]);
+    keyswitch_cutout_offset = (key_width - keyswitch_cutout_width) / 2;
+    dial_cutout_offset_x = (dial_diameter - dial_base_width) / 2;
+    dial_cutout_offset_y = (dial_diameter - dial_base_height) / 2;
+    plate_width = (plate_margin * 2) + dial_diameter + dial_distance + keys_width;
+    plate_height = (plate_margin * 2) + max(dial_diameter, key_width);
+    cube([plate_width, plate_height, plate_thickness]);
+    translate([plate_margin, plate_margin, -1]) {
+      // Dial cutouts
+      translate([(dial_diameter - dial_base_width) / 2,
+                 (dial_diameter - dial_base_height) / 2])
+        cube([dial_base_width, dial_base_height, plate_thickness + 2]);
 
-    translate([faceplate_margin, faceplate_margin, -1]) {
-      translate([dial_diameter / 2,
-                 dial_diameter / 2,
-                 0]) {
-        cylinder(d=dial_post_diameter + dial_gap, h=depth + 2);
-      }
-      translate([dial_diameter + dial_distance, 0]) {
-        xspread(spacing=key_cutout_width + key_distance, n=keys, sp=[0,0,0]) {
-          cube([key_cutout_width, key_cutout_width, depth + 2]);
+      // Key switch cutouts
+      offset_y = dial_diameter <= key_width ? 0 : (dial_diameter - key_width) / 2;
+      translate([dial_diameter + dial_distance, offset_y]) {
+        translate([keyswitch_cutout_offset, keyswitch_cutout_offset + offset_y]) {
+          xspread(spacing=key_width + key_distance, n=keys, sp=[0,0,0]) {
+            cube([keyswitch_cutout_width, keyswitch_cutout_width, plate_thickness + 2]);
+          }
         }
       }
     }
   }
 }
 
-module keyswitch_plate() {
-  cutout_offset = (key_width - key_cutout_width) / 2;
-  difference() {
-    plate_width = (plate_margin * 2) + keys_width;
-    plate_height = (plate_margin * 2) + key_width;
-    cube([plate_width, plate_height, plate_depth]);
-    translate([plate_margin - cutout_offset * 2,
-               plate_margin - cutout_offset,
-               -1]) {
-      xspread(spacing=key_cutout_width + key_distance, n=keys, sp=[0,0,0]) {
-        cube([keyswitch_cutout_width, keyswitch_cutout_width, plate_depth + 2]);
-      }
-    }
-  }
-}
-
-rotate([90 - faceplate_angle,0,0]) {
-  faceplate();
-  translate([faceplate_margin + dial_diameter + dial_distance - plate_margin,
-             faceplate_margin - plate_margin,
-             6.6])
-    color("blue")
-    keyswitch_plate();
-}
+support_plate();