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-rw-r--r--enclosure/lyza/lyza_enclosure.scad238
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diff --git a/enclosure/lyza/lyza_enclosure.scad b/enclosure/lyza/lyza_enclosure.scad
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+
+/* A small, arbitrary unit to guard against rounding errors */
+eps = 0.1;
+alot = 1000;
+
+/* Base PCB size */
+pcb_width = 50;
+pcb_height = 70;
+/* Extra space around PCB */
+pcb_extra = 1;
+
+/* Offset of screw hole centers from left/right/top/bottom side of board */
+screw_offx_l = 5;
+screw_offx_r = 5;
+screw_offx_t = 5;
+screw_offx_b = 5;
+
+/* Thickness of bottom, walls, lid (middle sections) */
+bottom_thickness = 1.5;
+wall_thickness = 1.5;
+lid_thickness = 1.5;
+
+/* Outside corner radius */
+corner_radius_wall = 3;
+corner_radius_lid = 2;
+
+screw_base_dia = 8;
+screw_base_h = 5;
+screw_nut_dia = 5.4;
+screw_nut_h = 6;
+screw_hole_dia = 4.0;
+screw_hole_h = 6;
+board_thickness = 1.6;
+height_above_board = 18;
+height_lid_inner = 1;
+lid_lip_depth = 1;
+lid_lip_width = 1;
+lid_lip_extra = 1;
+
+clamp_tube_dia = screw_base_dia;
+clamp_tube_h = 0; //height_above_board+height_lid_inner;
+clamp_tube_base_extra = 2;
+
+screw_head_hole_dia = 6.5;
+screw_head_hole_depth = 3;
+
+module rounded_rect(w, h, r) {
+ hull(){
+ translate([w/2-r, h/2-r]) circle(r);
+ translate([-(w/2-r), h/2-r]) circle(r);
+ translate([w/2-r, -(h/2-r)]) circle(r);
+ translate([-(w/2-r), -(h/2-r)]) circle(r);
+ }
+}
+
+module shell(thickness, inner_height, inner_extra, radius_horiz) {
+ d = thickness + inner_height;
+ rh=radius_horiz;
+ difference(){
+ r = corner_radius_wall;
+ w = pcb_width+pcb_extra+2*wall_thickness;
+ h = pcb_height+pcb_extra+2*wall_thickness;
+ hull() {
+ translate([0, 0, rh]) linear_extrude(height=d-rh) rounded_rect(w, h, r);
+ linear_extrude(height=eps) rounded_rect(w-2*rh, h-2*rh, r);
+ }
+
+ iw = pcb_width+inner_extra;
+ ih = pcb_height+inner_extra;
+ translate([-iw/2, -ih/2, bottom_thickness]) cube([iw, ih, h]);
+ }
+}
+
+module single_screw_base() {
+ translate([0, 0, bottom_thickness-eps]) linear_extrude(height=screw_base_h+eps) {
+ circle(d=screw_base_dia);
+ translate([-screw_base_dia/2, 0]) square([alot, alot]);
+ translate([0, -screw_base_dia/2]) square([alot, alot]);
+ }
+}
+
+w = pcb_width;
+h = pcb_height;
+e = pcb_extra;
+l = screw_offx_l;
+r = screw_offx_r;
+t = screw_offx_t;
+b = screw_offx_b;
+s1_pos = [w/2-l, h/2-b];
+s2_pos = [-w/2+r, -h/2+t];
+s3_pos = [w/2-l, -h/2+t];
+s4_pos = [-w/2+r, h/2-b];
+module screw_bases() {
+ intersection() {
+ union() {
+ translate(s1_pos) single_screw_base();
+ translate(s2_pos) mirror([1,1,0]) single_screw_base();
+ translate(s3_pos) mirror([0,1,0]) single_screw_base();
+ translate(s4_pos) mirror([1,0,0]) single_screw_base();
+ }
+ cube([w+e+eps, h+e+eps, alot], center=true);
+ }
+}
+
+module single_screw_hole() {
+ translate([0, 0, bottom_thickness+screw_base_h+eps])
+ mirror([0,0,1])
+ union() {
+ cylinder(h=screw_nut_h+eps, d=screw_nut_dia);
+ cylinder(h=screw_hole_h+eps, d=screw_hole_dia);
+ }
+}
+
+module screw_holes() {
+ translate(s1_pos) single_screw_hole();
+ translate(s2_pos) mirror([1,1,0]) single_screw_hole();
+ translate(s3_pos) mirror([0,1,0]) single_screw_hole();
+ translate(s4_pos) mirror([1,0,0]) single_screw_hole();
+}
+
+conn_1_y = 12.0;
+conn_1_l = 20.0;
+conn_1_h = 7;
+conn_2_y = conn_1_y+conn_1_l+6.0;
+conn_2_l = conn_1_l;
+conn_2_h = conn_1_h;
+conn_pwr_y = 12.5;
+conn_pwr_l = 10.0;
+conn_pwr_h = 10;
+conn_extra = 1;
+module conn_holes() {
+ e = conn_extra;
+ translate([0, -e/2, -e/2])
+ translate([0, 0, bottom_thickness+screw_base_h+board_thickness])
+ translate([-pcb_width/2, -pcb_height/2]) {
+ translate([-alot, conn_1_y]) cube([alot, conn_1_l+e, conn_1_h+e]);
+ translate([-alot, conn_2_y]) cube([alot, conn_2_l+e, conn_2_h+e]);
+ translate([0, conn_pwr_y]) cube([alot, conn_pwr_l+e, conn_pwr_h+e]);
+ }
+}
+
+module base() {
+ difference() {
+ union() {
+ screw_bases();
+ shell(bottom_thickness,
+ screw_base_h + board_thickness + height_above_board,
+ pcb_extra,
+ radius_horiz=0);
+ }
+ screw_holes();
+ conn_holes();
+ }
+}
+
+module single_clamp_stud_part(liph, clamp_tube_h, extra) {
+ translate([0, 0, lid_thickness-eps]) union() {
+ cylinder(h=clamp_tube_h, d=clamp_tube_dia+extra);
+ linear_extrude(height=liph+eps) {
+ translate([-clamp_tube_dia/2-extra/2, 0]) square([alot, alot]);
+ translate([0, -clamp_tube_dia/2-extra/2]) square([alot, alot]);
+ }
+ }
+}
+
+module single_clamp_stud(liph) {
+ e = clamp_tube_base_extra;
+ single_clamp_stud_part(liph, liph+eps, e);
+ single_clamp_stud_part(liph, clamp_tube_h, 0);
+}
+
+module lid_screw_hole() {
+ cylinder(h=alot, d=screw_hole_dia);
+ cylinder(h=screw_head_hole_depth+eps, d=screw_head_hole_dia);
+}
+
+module lid() {
+ e = lid_lip_extra;
+ iw = pcb_width+pcb_extra-e+eps;
+ ih = pcb_height+pcb_extra-e+eps;
+ liph = lid_lip_depth+height_lid_inner;
+ difference() {
+ union() {
+ shell(lid_thickness,
+ height_lid_inner,
+ inner_extra=-eps,
+ radius_horiz=corner_radius_lid);
+ difference() {
+ translate([-iw/2, -ih/2, lid_thickness-eps]) cube([iw, ih, liph+eps]);
+ minkowski() {
+ translate([-iw/2+e/2+liph, -ih/2+e/2+liph, lid_thickness-eps]) cube([iw-e-liph*2, ih-e-liph*2, eps]);
+ cylinder(d1=0, d2=2*liph+2*eps, h=2*liph+2*eps);
+ };
+ }
+ intersection() {
+ translate([-iw/2, -ih/2, lid_thickness-eps]) cube([iw, ih, alot]);
+ union() {
+ translate(s1_pos) single_clamp_stud(liph);
+ translate(s2_pos) mirror([1,1,0]) single_clamp_stud(liph);
+ translate(s3_pos) mirror([0,1,0]) single_clamp_stud(liph);
+ translate(s4_pos) mirror([1,0,0]) single_clamp_stud(liph);
+ }
+ }
+ }
+ translate([0, 0, -eps]) {
+ translate(s1_pos) lid_screw_hole();
+ translate(s2_pos) lid_screw_hole();
+ translate(s3_pos) lid_screw_hole();
+ translate(s4_pos) lid_screw_hole();
+ }
+ }
+}
+
+module enclosure() {
+
+
+ intersection() {
+ //translate([-pcb_width, -40, 0]) cube (35, 20, 20);
+ //translate([-pcb_width-15, 0, 0]) base();
+ };
+
+
+ intersection() {
+ //translate([-alot/2, -10, -alot/2]) cube ([alot, 20, alot]);
+ union () {
+ render() lid();
+
+ render() translate([0,0,eps]) mirror([0,0,1]) intersection() {
+ translate([-alot/2, -alot/2, 0]) cube([alot, alot, alot]);
+ translate([0,0,-0.2]) scale([0.3, 0.3, 0.04]) surface("depthmap_03.png", center=true);
+ };
+
+ };
+ };
+
+}
+
+enclosure($fn=25); \ No newline at end of file