// ============================================
// SaltyLab — Common Dimensions & Constants
// ============================================

// --- 2020 Aluminum Extrusion ---
extrusion_w = 20;
extrusion_slot = 6;     // T-slot width
extrusion_bore = 5;     // Center bore M5

// --- Hub Motors (8" hoverboard) ---
motor_axle_dia = 12;
motor_axle_len = 45;
motor_axle_flat = 10;   // Flat-to-flat if D-shaft
motor_body_dia = 200;   // ~8 inches
motor_bolt_circle = 0;  // Axle-only mount (clamp style)

// --- Drone FC (30.5mm standard) ---
fc_hole_spacing = 25.5;  // GEP-F722 AIO v2 (not standard 30.5!)
fc_hole_dia = 3.2;      // M3 clearance
fc_board_size = 36;      // Typical FC PCB
fc_standoff_h = 5;       // Rubber standoff height

// --- Jetson Nano ---
jetson_w = 100;
jetson_d = 80;
jetson_h = 29;           // With heatsink
jetson_hole_x = 86;      // Mounting hole spacing X
jetson_hole_y = 58;      // Mounting hole spacing Y
jetson_hole_dia = 2.7;   // M2.5 clearance

// --- RealSense D435i ---
rs_w = 90;
rs_d = 25;
rs_h = 25;
rs_tripod_offset = 0;    // 1/4-20 centered bottom
rs_mount_dia = 6.5;      // 1/4-20 clearance

// --- RPLIDAR A1 ---
lidar_dia = 70;
lidar_h = 41;
lidar_mount_circle = 67; // Bolt circle diameter
lidar_hole_count = 4;
lidar_hole_dia = 2.7;    // M2.5

// --- Kill Switch (22mm panel mount) ---
kill_sw_dia = 22;
kill_sw_depth = 35;      // Behind-panel depth

// --- Battery (typical 36V hoverboard pack) ---
batt_w = 180;
batt_d = 80;
batt_h = 40;

// --- Hoverboard ESC ---
esc_w = 80;
esc_d = 50;
esc_h = 15;

// --- ESP32-C3 (typical dev board) ---
esp_w = 25;
esp_d = 18;
esp_h = 5;

// --- WS2812B strip ---
led_strip_w = 10;        // 10mm wide strip

// --- General ---
wall = 3;                // Default wall thickness
m3_clear = 3.2;
m3_insert = 4.2;         // Heat-set insert hole
m25_clear = 2.7;
m5_clear = 5.3;
tol = 0.2;               // Print tolerance per side