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- // dependency: https://github.com/revarbat/BOSL
- include <BOSL/constants.scad>
- use <BOSL/transforms.scad>
- use <BOSL/shapes.scad>
- use <BOSL/masks.scad>
- use <BOSL/sliders.scad>
-
- // DEBUG:
- //validation = 1;
- //xray = 1;
-
- // EXPORT:
- MODEL_STRAP_PLATFORM_BASE=10;
- MODEL_STRAP_PLATFORM_RIB=11;
- MODEL_STRAP_PLATFORM_RIB_BRACE=12;
- export=0; // [0:20]
- function is_not_export() = is_undef(export) || export == 0;
- function is_export() = !is_not_export();
- function is_model_strict(m) = is_export() && export == m;
- function is_model(m) = is_not_export() || export == m;
-
- function get_phone_size() = [160, 76.7, 10];
-
- module arm() {
- $fn=$preview ? 10 : 30;
- arm_size=[200, 55, 40];
- color("gray")
- down(arm_size.z/2) cuboid(arm_size, fillet=16, edges=EDGES_X_ALL);
- }
-
- module strap_platform() {
- base_size=[40, 70, 2];
- rib_thickness=2;
- rib_height=20;
- rib_pos=[base_size.x/2 - rib_thickness, 0, -1.3];
- brace_size=[base_size.x, 3.6, 4.8];
- brace_pos=[0, base_size.y/2 - 4, -1.3];
- module platform_base() {
- difference() {
- down(base_size.z/2) cuboid(base_size, fillet=2, edges=EDGES_Z_ALL);
- down(base_size.z/2) scale([0.75, 0.85, 2]) cuboid(base_size, fillet=2, edges=EDGES_Z_ALL);
- model_rib_left(socket=true);
- model_rib_right(socket=true);
- }
- }
-
- module platform_rib(socket=false) {
- rib_size=[rib_thickness, base_size.y - 2, rib_height];
- difference() {
- union() {
- difference() {
- down(rib_size.z/2) scale(socket ? 1.01 : 1) sparse_strut(h=rib_size.z, l=rib_size.y, thick=rib_size.x, strut=1.2, maxang=40, max_bridge=4);
- arm();
- }
- difference() {
- intersection() {
- down(rib_size.z/2) cube(rib_size, center=true);
- scale(1.07) arm();
- }
- down(2) scale(1.0) arm();
- }
- }
- fwd(brace_pos.y) platform_rib_brace(socket=true);
- back(brace_pos.y) platform_rib_brace(socket=true);
- }
- }
-
- module platform_rib_brace(socket=false) {
- down(rib_height - 1.2 - brace_size.z/2) scale(socket ? 1.02 : 1) cuboid(brace_size, fillet=1, edges=EDGES_X_ALL);
- }
-
- module model_rib_left(socket=false) {
- left(rib_pos.x) up(rib_pos.z) platform_rib(socket=socket);
- }
- module model_rib_right(socket=false) {
- right(rib_pos.x) up(rib_pos.z) platform_rib(socket=socket);
- }
- module model_brace_front() {
- fwd(brace_pos.y) up(brace_pos.z) platform_rib_brace();
- }
- module model_brace_back() {
- back(brace_pos.y) up(brace_pos.z) platform_rib_brace();
- }
-
- if (is_model(MODEL_STRAP_PLATFORM_BASE)) platform_base();
- if (is_model(MODEL_STRAP_PLATFORM_RIB)) model_rib_left();
- if (is_model(MODEL_STRAP_PLATFORM_RIB_BRACE)) model_brace_front();
- if (is_not_export()) {
- model_rib_right();
- model_brace_back();
- }
- }
-
- module model_strap_platform() {
- strap_platform();
- }
- module model_arm() {
- if (is_not_export()) down(3) arm();
- }
-
- model_strap_platform();
- model_arm();
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