// -*- C -*-
+//
+// Print (fine detail settings):
+//
+// * Bottom
+// * MiddlePrint
+// * CoverPrint
include <utils.scad>
-//tongue_w = 11.92 + 0.4;
-
usb_w = 12.01 + 0.19;
usb_wall_w = 0.51;
usb_tongue_d = 8.97 - 0.2;
usb_wall_h = 4.54 - 2.04;
usb_ceil_th = 0.425;
-side_wall_th = 1.5; // XXXX rename wall_th
+wall_th = 1.5; // XXXX rename wall_th
board_l = 17.56 + 0.2;
board_w = 19.14 + 0.2;
front_wall_th = 0.75;
// egress_w = 8.0;
-wall_y_min = -board_l - side_wall_th; // XXXX remove
-main_y_min = -board_l - side_wall_th;
+wall_y_min = -board_l - wall_th;
ceil_y_min = wall_y_min - 5;;
small_walls = [
chip_cutout = [[ -sw_to_edge + 4.20, -3.75 ],
[ -sw_to_edge + 11.95, -11.90 ]];
-strain_w = 2.0 + 0.5;
-strain_t = 1.0 + 0.5;
+strain_w = 3.5 + 0.5;
+strain_t = 1.5 + 0.5;
strain_pitch_across = 5;
strain_pitch_along = 10;
strain_groove_d = 2;
-strain_groove_w = 3;
+strain_groove_w = 4.5;
+strain_around = [2.25, 2.00];
+
+cover_strap_c_d_y = 5.5; // from front of board
+cover_registration_sz_y = 2;
+cover_registration_sz_z = 3;
+midbot_registraton_sz_x = 3;
cable_space_z = 6;
-cable_dia = 5;
+cable_dia = 6;
bottom_floor_th = 1.5;
fit_gap_z = 0.5;
+fit_gap_y = 0.25;
side_x_gap = 0.5;
-cover_ceil_th = 0.425;
+cover_ceil_th = 0.9;
+
+cover_strap_sz_x = wall_th * 3.5;
// calculated
-top_top_z = usb_wall_h;
-top_base_z = -board_th;
-bottom_base_z = top_base_z - cable_space_z - bottom_floor_th;;
+strap_w = strain_w;
+cover_strap_cutout_z = wall_th;
+
+middle_top_z = usb_wall_h;
+middle_base_z = -board_th;
+bottom_base_z = middle_base_z - cable_space_z - bottom_floor_th;;
front_y_max = front_wall_th;
+main_y_min = -board_l - wall_th;
strain_0_y_c = main_y_min - strain_w/2;
strain_1_y_c = strain_0_y_c - strain_pitch_along;
-total_y_min = strain_1_y_c - strain_w/2 - side_wall_th;
+total_y_min = strain_1_y_c - strain_w/2 - wall_th;
+
+bottom_wall_top_z = (middle_top_z + middle_base_z) * 0.5 - fit_gap_z/2;
+cover_wall_bot_z = (middle_top_z + middle_base_z) * 0.5 + fit_gap_z/2;
+cover_top_z = middle_top_z + cover_ceil_th;
+
+middle_side_wall_x = +board_w/2 + wall_th;
+total_side_wall_x = middle_side_wall_x + wall_th + side_x_gap;
-bottom_wall_top_z = (top_top_z + top_base_z) * 0.5 - fit_gap_z/2;
-cover_wall_bot_z = (top_top_z + top_base_z) * 0.5 + fit_gap_z/2;
-cover_top_z = top_top_z + cover_ceil_th;
+cover_registration_c_dy = -cover_strap_c_d_y - strap_w/2
+ - wall_th - cover_registration_sz_y/2;
-top_side_wall_x = +board_w/2 + side_wall_th;
-total_side_wall_x = top_side_wall_x + side_wall_th + side_x_gap;
+midbot_registration_sz_y = cover_registration_sz_y;
+midbot_registration_sz_z = cover_registration_sz_z;
+midbot_registration_y_min = total_y_min + wall_th*2;
+midbot_registration_y_max = midbot_registration_y_min
+ + midbot_registration_sz_y;
+midbot_registration_y_around_max = midbot_registration_y_max
+ + wall_th*2;
+midbot_registration_bottom_x = board_w/2 - midbot_registraton_sz_x;
+
+midbot_strap_c_y = 0.5 * (strain_0_y_c + strain_1_y_c);
module BothSides(){
for (m=[0,1]) {
- mirror([m,0]) {
+ mirror([m,0,0]) {
children();
}
}
}
+
+module NormalStrapCutouts(y_c, z, rot){
+ BothSides(){
+ translate([ -total_side_wall_x, y_c, z ])
+ rotate([0, rot, 0])
+ cube([ wall_th,
+ strap_w,
+ 10 ],
+ center=true);
+ }
+}
+module BottomStrapCutouts(y_c){
+ NormalStrapCutouts(y_c, bottom_base_z, -45);
+}
+module CoverStrapCutouts(){
+ BothSides(){
+ translate([ -total_side_wall_x, -cover_strap_c_d_y, cover_top_z ])
+ cube([ cover_strap_sz_x*2,
+ strap_w,
+ cover_strap_cutout_z*2 ],
+ center=true);
+ }
+}
+
module FrontWallsPlan(slop) {
BothSides(){
- rectfromto([ -board_w/2 - side_wall_th, 0 ],
- [ -usb_w/2 - slop, front_wall_th ]);
+ rectfromto([ -board_w/2 - wall_th, 0 ],
+ [ -usb_w/2 - slop, front_wall_th ]);
}
}
-module TopSmallWallsPlan() {
+module MiddleSmallWallsPlan() {
for (m=[0,1]) {
mirror([m,0]) {
rectfromto([ -usb_w/2, -0.01 ],
rectfromto(w[0], w[1]);
}
}
-module TopCeilPlan() {
+module MiddleCeilPlan() {
difference(){
BothSides(){
rectfromto([ -usb_w/2, -0.01 ],
[ 0.1, usb_tongue_d ]);
- rectfromto([ -board_w/2 - side_wall_th, 0 ],
- [ 0.1, ceil_y_min ]);
+ rectfromto([ -board_w/2 - wall_th, 0 ],
+ [ 0.1, ceil_y_min ]);
}
rectfromto(chip_cutout[0], chip_cutout[1]);
}
}
-module TopMainWallsPlan() {
+module MiddleMainWallsPlan() {
BothSides(){
- rectfromto([ -board_w/2 - side_wall_th, 0 ],
- [ -board_w/2, wall_y_min ]);
+ rectfromto([ -board_w/2 - wall_th, 0 ],
+ [ -board_w/2, wall_y_min ]);
}
FrontWallsPlan(usb_tongue_w_slop);
- rectfromto([ -board_w/2 - side_wall_th + 0, - board_l ],
- [ +board_w/2 + side_wall_th, total_y_min ]);
+ rectfromto([ -board_w/2 - wall_th + 0, - board_l ],
+ [ +board_w/2 + wall_th, total_y_min ]);
+}
+
+module RegistrationsMinkowski(){
+ minkowski(){
+ cube([ 1, fit_gap_y*2, fit_gap_z*2 ], center=true);
+ children();
+ }
+}
+module CoverRegistrations(){
+ linextr_y_xz(cover_registration_c_dy - strap_w/2,
+ cover_registration_c_dy + strap_w/2) {
+ difference(){
+ rectfromto([ -total_side_wall_x,
+ cover_wall_bot_z - cover_registration_sz_z ],
+ [ +total_side_wall_x, cover_top_z ]);
+ hull(){
+ MiddleElevationForCutout();
+ translate([0, -20]) MiddleElevationForCutout();
+ }
+ }
+ }
+}
+module MidBotRegistrations(){
+ linextr_y_xz(midbot_registration_y_min,
+ midbot_registration_y_max) {
+ BothSides(){
+ rectfromto([ midbot_registration_bottom_x, middle_base_z + 0.1 ],
+ [ middle_side_wall_x, middle_base_z
+ - midbot_registration_sz_z ]);
+ }
+ }
}
-module Top(){ ////toplevel
+module MiddleStrainHoles(){
+ BothSides(){
+ for (y_c = [strain_0_y_c, strain_1_y_c]) {
+ translate([strain_pitch_across/2, y_c, 0])
+ square([ strain_t, strain_w ], center=true);
+ }
+ }
+}
+module Middle(){ ////toplevel
difference(){
union(){
linextr(0, usb_wall_h)
- TopSmallWallsPlan();
+ MiddleSmallWallsPlan();
linextr(usb_wall_h - usb_ceil_th, usb_wall_h)
- TopCeilPlan();
+ MiddleCeilPlan();
linextr(-board_th, usb_wall_h)
- TopMainWallsPlan();
+ MiddleMainWallsPlan();
+ BothSides()
+ linextr(cover_wall_bot_z, middle_top_z)
+ rectfromto([ -(board_w/2 + 0.1), total_y_min ],
+ [ -total_side_wall_x, main_y_min - fit_gap_y ]);
+ MidBotRegistrations();
}
- for (y_c = [strain_0_y_c, strain_1_y_c]) {
- for (x_c = [-1,+1] * strain_pitch_across/2) {
- translate([x_c, y_c, 0])
- linextr(-20, 20)
- square([ strain_t, strain_w ], center=true);
- }
- }
+ linextr(-20, 20)
+ MiddleStrainHoles();
linextr_y_xz(total_y_min-1, main_y_min)
- translate([0, top_base_z])
+ translate([0, middle_base_z])
scale([1, strain_groove_d/strain_groove_w])
circle(strain_groove_w/2, $fn = 8);
+ NormalStrapCutouts(midbot_strap_c_y,
+ middle_top_z, 45);
}
}
+module MiddlePrint(){ ////toplevel
+ rotate([180,0,0]) Middle();
+}
-module TopElevationForCutout(){
- rectfromto([ -(top_side_wall_x + side_x_gap), top_base_z ],
- [ +(top_side_wall_x + side_x_gap), top_top_z ]);
+module MiddleElevationForCutout(){
+ rectfromto([ -(middle_side_wall_x + side_x_gap),
+ middle_base_z - fit_gap_z ],
+ [ +(middle_side_wall_x + side_x_gap), middle_top_z ]);
}
module BottomMainElevation(){
difference(){
rectfromto([ -total_side_wall_x, bottom_base_z ],
[ +total_side_wall_x, bottom_wall_top_z ]);
- TopElevationForCutout();
+ MiddleElevationForCutout();
}
}
module Bottom(){ ////toplevel
BottomMainElevation();
}
- linextr_y_xz(total_y_min + side_wall_th,
- front_y_max - side_wall_th)
+ linextr_y_xz(midbot_registration_y_around_max,
+ front_y_max - wall_th)
rectfromto([ -board_w/2, bottom_base_z + bottom_floor_th ],
[ +board_w/2, 20 ]);
+ linextr_y_xz(total_y_min + wall_th,
+ front_y_max - wall_th)
+ rectfromto([ -midbot_registration_bottom_x,
+ bottom_base_z + bottom_floor_th ],
+ [ +midbot_registration_bottom_x, 20 ]);
+
linextr_y_xz(total_y_min - 1,
- total_y_min + side_wall_th + 1){
- translate([ 0, top_base_z ]){
+ total_y_min + wall_th + 1){
+ translate([ 0, middle_base_z ]){
hull(){
translate([ 0, -cable_dia/2 ])
circle(r = cable_dia/2, $fa = 10, $fs = 1);
}
}
}
+ RegistrationsMinkowski()
+ CoverRegistrations();
+ RegistrationsMinkowski()
+ MidBotRegistrations();
+ BottomStrapCutouts(-cover_strap_c_d_y);
+ BottomStrapCutouts(midbot_strap_c_y);
}
}
rectfromto([ -total_side_wall_x, cover_wall_bot_z ],
[ +total_side_wall_x, cover_top_z ]);
- TopElevationForCutout();
+ MiddleElevationForCutout();
}
}
module Cover(){ ////toplevel
- linextr_y_xz(main_y_min, front_y_max)
- CoverMainElevation();
+ difference(){
+ union(){
+ linextr_y_xz(main_y_min, front_y_max)
+ CoverMainElevation();
+ CoverRegistrations();
+ }
+ CoverStrapCutouts();
+ linextr(-20,20) {
+ minkowski(){
+ square(strain_around * 2, center=true);
+ hull() MiddleStrainHoles();
+ }
+ }
+ }
+}
+module CoverPrint(){ ////toplevel
+ rotate([180,0,0]) Cover();
}
module BottomDemo(){ ////toplevel
translate([0, 0, -0.25]) Bottom();
- %Top();
+ %Middle();
translate([0, 0, +0.25]) Cover();
}
+module ImpressionDemo(){ ////toplevel
+ color("black") translate([0, 0, -0.25]) Bottom();
+ %Middle();
+ %translate([0, 0, +0.25]) Cover();
+}
~ianmdlvl / reprap-play.git / blobdiff