$fn=64;

// Parametric variables for FigureStage grid system
grid_spacing = 15.0;       // Distance between grid connection points
peg_diameter = 3.0;        // Diameter of connection pegs
peg_taper = 2.8;           // Top diameter of pegs for easier insertion
peg_height = 4.0;          // Height of the connection pegs
bracket_width = 15.0;      // Width of the bracket arms
bracket_thickness = 3.0;   // Thickness of the bracket body
arm_length = 30.0;         // Length of each arm to cover two grid points

module figure_stage_corner_connector() {
    union() {
        // Main L-shaped bracket body
        union() {
            // X-axis arm
            cube([arm_length, bracket_width, bracket_thickness]);
            // Y-axis arm
            cube([bracket_width, arm_length, bracket_thickness]);
            // Reinforcement at the inner corner
            translate([bracket_width, bracket_width, 0])
                cylinder(h=bracket_thickness, r=2);
            translate([bracket_width, bracket_width, 0])
                cube([2, 2, bracket_thickness]);
        }

        // Connection Pegs (spaced exactly at grid_spacing)
        // Corner peg
        translate([bracket_width/2, bracket_width/2, bracket_thickness - 0.1])
            cylinder(h=peg_height + 0.1, d1=peg_diameter, d2=peg_taper);

        // X-arm peg
        translate([bracket_width/2 + grid_spacing, bracket_width/2, bracket_thickness - 0.1])
            cylinder(h=peg_height + 0.1, d1=peg_diameter, d2=peg_taper);

        // Y-arm peg
        translate([bracket_width/2, bracket_width/2 + grid_spacing, bracket_thickness - 0.1])
            cylinder(h=peg_height + 0.1, d1=peg_diameter, d2=peg_taper);
    }
}

// Center the model for rendering
translate([-bracket_width/2, -bracket_width/2, 0])
    figure_stage_corner_connector();