housing: Start

[tattlekey] / housing / tattlekey.scad

diff --git a/housing/tattlekey.scad b/housing/tattlekey.scad
new file mode 100644 (file)
index 0000000..f117e27
--- /dev/null
+++ b/housing/tattlekey.scad
@@ -0,0 +1,130 @@
+use <cherryVoid.scad>
+
+key_interface_size = 19;
+key_interface_corner_r = 5;
+
+housing_inner_h = 10; // Chosen to let board fit inside
+housing_inner_w = 21;
+
+thickness = 1.7;
+
+wiring_l = 12;
+
+pico_board_l = 51.0;
+pico_board_w = 21.0;
+pico_total_h = 3.7;
+
+$fs = .1;
+$fa = 6;
+
+slop = 128;
+epsilon = 1/64;
+
+module pico_hole(d, x, y) {
+    translate([x, y, -slop/2])
+    cylinder(h=slop, d = d);
+}
+
+module pico_w(hole_d = 2.1) {    
+    board_l = pico_board_l;
+    board_w = pico_board_w;
+    board_h = 1.0;
+    
+    hole_x1 = 2.0;
+    hole_x2 = board_l - 2.0;
+    hole_y_spacing = 11.4;
+    hole_y = (board_w - hole_y_spacing)/2;
+    
+    difference() {
+        color("green")
+        cube([board_l, board_w, board_h]);
+
+        pico_hole(hole_d, hole_x1, hole_y);
+        pico_hole(hole_d, hole_x2, hole_y);
+        pico_hole(hole_d, hole_x1, hole_y + hole_y_spacing);
+        pico_hole(hole_d, hole_x2, hole_y + hole_y_spacing);
+        
+    }
+    
+    total_l = 52.3;
+    total_h = pico_total_h;
+    usb_w = 8.0;
+    usb_l = 5.6;
+    usb_h = 3.0;
+    color("lightgray")
+    translate([board_l - total_l, (board_w-usb_w)/2, total_h-usb_h])
+    cube([usb_l, usb_w, usb_h]);
+    
+    button_l = 4.2;
+    button_w = 3.4;
+    button_h = 3.5;
+    button_x = 9.9;
+    button_y = 5.2;
+    color("white")
+    translate([button_x, button_y, epsilon])
+    cube([button_l, button_w, button_h]);
+    
+    wifi_l = 10.0;
+    wifi_w = 12.0;
+    wifi_h = 2.8;
+    wifi_x = 33.0;
+    color("lightgray")
+    translate([wifi_x, (board_w-wifi_w)/2, epsilon])
+    cube([wifi_l, wifi_w, wifi_h]);
+}
+
+module at_key() {
+    translate([pico_board_l + wiring_l, 0, 0])
+    rotate([45, 0, 0])
+    rotate([0, 90, 0])
+    children();
+}
+
+module key_interface_shape(thick = thickness) {
+    inner = key_interface_size - 2*key_interface_corner_r;
+    linear_extrude(thick)
+    minkowski() {
+        square([inner, inner], center=true);
+        circle(r=key_interface_corner_r);
+    }
+}
+
+module key_interface() {
+    at_key()
+    difference() {
+        key_interface_shape();
+        
+        #translate([0, 0, 6 - epsilon])
+        cherry_switch_void();
+    }
+}
+
+module housing(length = pico_board_l) {
+    inner_squish = housing_inner_h / housing_inner_w;
+    housing_outer_w = housing_inner_w + 2 * thickness;
+    housing_outer_h = housing_inner_h + 2 * thickness;
+    outer_squish = housing_outer_h / housing_outer_w;
+    rotate([90, 0, 0])
+    rotate([0, 90, 0])
+    linear_extrude(length)
+    difference() {
+        scale([1, outer_squish])
+        circle(d = housing_outer_w);
+        scale([1, inner_squish])
+        circle(d = housing_inner_w);
+    }
+}
+
+/*
+!union() {housing(); hull() {
+    at_key() key_interface_shape(epsilon);
+    translate([pico_board_l-wiring_l, 0, 0])
+    housing(wiring_l);
+}}
+*/
+
+translate([0, -pico_board_w/2, -1])
+pico_w(hole_d = 2);
+
+key_interface();
+housing();