// ============================================================================
//  Kidsbox enclosure — parameters
//  All dimensions in millimetres. Edit here, then re-export the STLs.
//  See README.md for the export commands.
// ============================================================================

// ---- global print settings ------------------------------------------------
$fn            = 64;     // facet count for curves (raise for final render)
wall           = 3.0;    // shell wall thickness
floor_t        = 3.0;    // bottom thickness
corner_r       = 6.0;    // outer vertical-edge radius
fit            = 0.30;   // general clearance for mating parts (per side)

// ---- outer box dimensions (interior is derived) ---------------------------
box_w          = 190;    // width  (X) — roughly one banana, per reference photo
box_h          = 110;    // height (Z)
box_d          = 115;    // depth  (Y)

// derived interior
inner_w        = box_w - 2*wall;
inner_d        = box_d - 2*wall;
inner_h        = box_h - floor_t;   // open-top shell, lid closes it

// ---- lid -------------------------------------------------------------------
lid_t          = 2.4;    // thin enough for 13.56 MHz NFC to read through PLA
lid_rim_h      = 6.0;    // depth of the lip that drops into the box
lid_rim_t      = 1.6;    // thickness of that lip
lid_screw_d    = 3.2;    // M3 clearance
lid_boss_d     = 9.0;    // corner screw-boss outer diameter
lid_boss_inset = 9.0;    // boss centre inset from interior corner

// ---- speaker panel interface (FIXED) --------------------------------------
//  This is the standard "mount for the speaker mount". Every swappable
//  speaker adapter bolts to THIS pattern, so the box never changes.
spk_sound_d      = 66;   // sound opening through the front panel
spk_bolt_d       = 80;   // bolt circle for the adapter screws
spk_bolt_count   = 4;    // number of adapter screws
spk_bolt_hole_d  = 3.2;  // M3 clearance through the panel
spk_boss_d       = 8.0;  // screw boss diameter on the inside of the panel
spk_boss_h       = 5.0;  // screw boss height (into the box)
spk_spacing      = 94;   // centre-to-centre of the two speakers (X)
spk_center_z     = 48;   // speaker centre height from the box floor (Z)

// ---- swappable speaker ADAPTER (edit for YOUR speaker) ---------------------
//  Print one adapter per speaker model. Defaults suit a common 3" driver.
adapter_t        = 3.0;  // adapter plate thickness
adapter_outer_d  = 88;   // outer diameter of the adapter disc
spk_frame_d      = 66;   // speaker outer frame diameter (seat recess)
spk_frame_seat   = 1.5;  // depth the frame sinks into the adapter
spk_cutout_d     = 58;   // cone clearance hole through the adapter
spk_screw_count  = 4;    // the SPEAKER's own mounting holes
spk_screw_bolt_d = 60;   // bolt circle of the speaker's mounting holes
spk_screw_d      = 3.0;  // speaker screw clearance

// ---- speaker grill (snaps into the sound opening) -------------------------
grill_t          = 2.4;  // grill face thickness
grill_rings      = 3;    // number of concentric rings
grill_spokes     = 6;    // number of radial spokes
grill_lip_h      = 5.0;  // snap lip depth into the sound hole
grill_standoff   = 3.0;  // gap the grill holds off the cone

// ---- buttons (top lid, row near the front edge) ---------------------------
//  Kept off the front face (which stays clean like the reference box) and
//  clear of the central NFC reader, which sits under the lid centre.
btn_d            = 12.2; // panel hole for a 12 mm momentary switch
btn_count        = 3;    // vol-, play/pause, vol+
btn_pitch        = 26;   // spacing between buttons along X
btn_row_y        = 18;   // distance of the button row from the front wall

// ---- side ports ------------------------------------------------------------
usb_w            = 12;   // micro-USB / charge access cutout (W)
usb_h            = 7;    // (H)
usb_center_z     = 22;   // height of the port from the floor
sw_d             = 7;    // power slide-switch hole diameter
sw_center_z      = 22;

// ---- ESP32-LyraT v4.3 mount (verify against your board) -------------------
lyrat_w          = 99;   // board long edge
lyrat_d          = 57;   // board short edge
lyrat_hole_dx    = 92;   // mounting-hole rectangle, long axis  (VERIFY)
lyrat_hole_dy    = 50;   // mounting-hole rectangle, short axis (VERIFY)
lyrat_standoff_h = 6;    // standoff height off the floor
lyrat_standoff_d = 6;    // standoff outer diameter
lyrat_screw_d    = 2.6;  // self-tap for M2.5/M3

// ---- 2x 18650 battery holder cradle ---------------------------------------
batt_holder_w    = 78;   // typical 2-cell holder footprint (X)
batt_holder_d    = 39;   // (Y)
batt_holder_h    = 21;   // (Z)
batt_wall        = 2.0;  // cradle wall
batt_clip        = true; // add retaining clips

// ---- ventilation -----------------------------------------------------------
vent_slot_w      = 3;
vent_slot_len    = 28;
vent_count       = 5;