epaper_door_case/epd_case.scad

// Waveshare GDEY0583T81 5.83" ePaper Display Case
// Display slides in from Y-; no Y- side wall
// FPC cable exits toward Y+ then bends 90° toward Z- through backplate slot
include <params.scad>
use <GDEY0583T81.scad>

/* [Preview] */
SHOW_DISP = true;
EPD_EXPLODE = 0;   // mm to pull display mockup toward Y- for inspection
CLIP_Z    = 0;     // mm to remove from Z+ (0 = full model; LIP reveals cavity; LIP+DISP_T reveals floor)

module epd_case() {
  color("#004B49") {
  difference() {
    // Solid case body — open at Y=0 (no Y- wall) by construction
    rounded_box(epd_case_w, epd_case_d, epd_case_h, CORNER_R);

    // Display cavity: slides in from Y=0; BEZEL_Y extends depth so display seats at Y=BEZEL_Y
    translate([WALL, -0.01, WALL])
      cube([epd_cav_w, BEZEL_Y + epd_cav_d + DISP_Y_EXTRA + 0.01, DISP_T + TOL]);

    // Active area window: straight portion + chamfered top edges
    // Extends 0.01 mm into the display cavity to avoid a coplanar face with the mockup
    translate([epd_win_x, epd_win_y, WALL + DISP_T - 0.01])
      cube([epd_win_w, ACT_D, LIP - CHAM + 0.02]);
    hull() {
      translate([epd_win_x, epd_win_y, epd_case_h - CHAM])
        cube([epd_win_w, ACT_D, 0.01]);
      translate([epd_win_x - _cham_xy, epd_win_y - _cham_xy, epd_case_h])
        cube([epd_win_w + 2*_cham_xy, ACT_D + 2*_cham_xy, 0.01]);
    }

    // FPC cable slot — quarter-cylinder swept volume of cable arc from horizontal to vertical.
    // Arc center at (Y=DISP_D, Z=WALL−FPC_BEND_R); first-quadrant slice (Y≥DISP_D, Z≥arc_center_z).
    // Creates opening through backplate floor and clears Y+ wall material for bend.
    translate([_fpc_x1, BEZEL_Y + DISP_D + DISP_Y_EXTRA, WALL - FPC_BEND_R])
      intersection() {
        rotate([0, 90, 0])
          cylinder(r=_fpc_ro, h=_fpc_xw, $fn=32);
        cube([_fpc_xw, _fpc_ro + 1, _fpc_ro + 1]);
      }
  }}

  // Display mockup — seated at case origin; EPD_EXPLODE pulls it toward Y-
  if ($preview && SHOW_DISP)
    color("#F0F0F0")
      translate([WALL + TOL, BEZEL_Y + DISP_Y_EXTRA - EPD_EXPLODE, WALL])
        GDEY0583T81(fpc_bend_start=0, fpc_bend_r=FPC_BEND_R, fpc_post_clip=2);
}

intersection() {
  epd_case();
  cube([epd_case_w + 1, epd_case_d + 1,
        ($preview && CLIP_Z > 0) ? max(0.01, epd_case_h - CLIP_Z) : epd_case_h + 1]);
}