//Raspberry Pi 3B+ based music box
// Ⓒ Christian Kellermann <ckeen@pestilenz.org>
//
//This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International
//License. To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/
//or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.



include <rpi3-case.scad>
include <boxmaker.scad>
include <MCAD/metric_fastners.scad>


/* All distances are in mm. */
/* set output quality */
$fn = 50;

// Box inner dimensions
box_inner = [200, 90, 160];
// Material thickness (mm)
thickness = 4;

// Tab width (X, Y, Z) (mm)
tabs = [7,7,7,7,7];

// lcd measurements
lcd = [84,55];

// this LCD has some parts added without a display, so the bezel needs to cover that up

inner_bezel = [75,49];

module case_holes(){
    translate([-95,-70])
        circle(r=1.5, center=true);
    translate([95,-70])
        circle(r=1.5, center=true);
    translate([-95,70])
        circle(r=1.5, center=true);
    translate([95,70])
        circle(r=1.5, center=true);

}

module lcd_holes(){
    translate([94/2,65/2])
        circle(d=3,center=true);
    translate([94/2,-65/2])
        circle(d=3,center=true);
    translate([-94/2,65/2])
        circle(d=3,center=true);
    translate([-94/2,-65/2])
        circle(d=3,center=true);
    translate([-94/2,0])
        circle(d=3,center=true);
    translate([94/2,0])
        circle(d=3,center=true);
}

module buttons(){
    translate([0,56])
        translate([-3*(23)-10,0])
            circle(d=7, center=true);
    translate([0,56])
        translate([3*(23)+10,0])
            circle(d=29, center=true);
    translate([0,-56]){
        translate([3*(23)+10,0])
        circle(d=29, center=true);
        translate([1.5 * 23 + 5,0])
        circle(d=29, center=true);
        circle(d=29, center=true);
        translate([1.5*-23-5,0])
        circle(d=29, center=true);
        translate([-3*23-10,0])
        circle(d=29, center=true);
    }    
}

module front(){
//    difference(){
//        square([200,140], center=true);
        case_holes();
        translate([0,5]){
            square(lcd, center=true);
            lcd_holes();  
        }
        buttons();
//    }
}

module pi_mounts(){
    difference(){
    hull(){
        projection(cut=true)
            rotate([0,0,-90])
                rpi();
    }
    projection(cut=true)
        rotate([0,0,-90])
            rpi();
    }
}

module back(){
//    difference(){
//        square([200,140], center=true);
        case_holes();
        mirror([1,0,0])
        translate([-99,-10])
            pi_mounts();
//    }
}


module lcd_holder_base() {
    difference(){
        minkowski(){
            circle(d=3, center=true);
            square([100,72], center=true);
        }
        lcd_holes();
    }
}

module lcd_holder() {
        difference(){
            lcd_holder_base();
            translate([-3,0])
                square(inner_bezel, center=true);
        }
}

module lcd_holder_back() {
    difference(){
        lcd_holder_base();
        square([120,50], center=true);
    }
}


module dc_jack(plate=false){
    if (plate==true)
        circle(d=8,center=true);
    else
        circle(d=12, center=true);
    translate([-6,6])
        circle(d=3, center=true);
    translate([-6,-6])
        circle(d=3, center=true);
    translate([6,6])
        circle(d=3, center=true);
    translate([6,-6])
        circle(d=3, center=true);
}

module dc_plate(){
    difference(){
        minkowski(){
            circle(d=3, center=true);
        square([17,17], center=true);
        }
        dc_jack(plate=true);
    }
}

module speaker_plate(){
    difference(){
        minkowski(){
            circle(d=3, center=true);
            square([38,75], center=true);
        }
        translate([31/2-4,-70/2+4])
            circle(r=1.5, center=true);
        translate([31/2-4,70/2-4])
            circle(r=1.5, center=true);
        translate([-31/2+4,-70/2+4])
            circle(r=1.5, center=true);
        translate([-31/2+4,70/2-4])
            circle(r=1.5, center=true);

        intersection(){
            angle = 20;
            scale([1,1.5])
                circle(d=30, center=true);    
            rotate([0,0,angle]){
                    for(i=[-15:3:15]){
                        translate([i,0])
                            square([2,45], center=true);
                    }
            }
            rotate([0,0,-angle]){
                    for(i=[-15:3:15]){
                        translate([i,0])
                            square([2,45], center=true);
                    }
            }
        }
    }
}

module speaker(with_dc=false, with_piports=false){
       translate([31/2-4,-70/2+4])
            circle(r=1.5, center=true);
        translate([31/2-4,70/2-4])
            circle(r=1.5, center=true);
        translate([-31/2+4,-70/2+4])
            circle(r=1.5, center=true);
        translate([-31/2+4,70/2-4])
            circle(r=1.5, center=true);
        scale([1,1.5])
            circle(d=30, center=true);    
    

    if (with_piports==true)
            translate([-40,-10])
                pi_ports(); 
    if (with_dc==true)
        translate([35,-60])
                   dc_jack();


}

module pi_ports(){
    projection(cut=true)
        rotate([-90,0.01,-90])
            rpi();
}

module top(){
    //difference(){
        //square([200,90], center=true);
        for(i=[-70:5:-10]){
            translate([i,0])
                square([2,50], center=true);
        }
        for(i=[10:5:70]){
            translate([i,0])
                square([2,50], center=true);
        }
    //}
}

module bottom(){
    square([200,90], center=true);
}

//translate([-200,0])
//    front();
//translate([-200,150])
//    back();
//translate([-400,0])
//    speaker(with_piports=true);
//speaker(with_dc=true);
//translate([box_inner[0]/2,-thickness,box_inner[2]-25])
//rotate([90,0,0])
//linear_extrude(height=3, center=true)

translate([0,-50,0])
    lcd_holder();
translate([-280,-50,0])
    lcd_holder_base();
translate([-140,-50,0])
    lcd_holder_back();
translate([0,-100,0])
    dc_plate();

// encoder knob
//translate([20,-thickness,box_inner[2]-25])
//rotate([90,0,0])
//linear_extrude(height=15, center=true)
//circle(d=20,center=true)

// example button top
//translate([box_inner[0]-2,box_inner[1]-10, 14])
//rotate([90,0,90])
//linear_extrude(height=2, center=true)


module player_box(box_inner, thickness, tabs){

     layout_2d(box_inner, thickness) {

   difference() {
//top
      side_a_top(box_inner, thickness, tabs);
      translate([box_inner[0] / 2, box_inner[1] / 2])
            top();
    }

    difference() {
//bottom
      side_a(box_inner, thickness, tabs);
    }

    difference() {
// left
//        empty();
      side_b(box_inner, thickness, tabs);
      translate([box_inner[1] / 2, box_inner[2] / 2])
        speaker(with_piports=true);
    }

    difference() {
// right
//        empty();
      side_b(box_inner, thickness, tabs);
      translate([box_inner[1] / 2, box_inner[2] / 2])
        speaker(with_dc=true);
    }

    difference() {
//front
//        empty();
      side_c(box_inner, thickness, tabs);
      translate([box_inner[0]/2, box_inner[2]/2])
        front();
    }

    difference() {
// back
//        empty();
      side_c(box_inner, thickness, tabs);
      translate([box_inner[0] / 2, box_inner[2] / 2])
        back();
    }
  }
 }

// plate for speakers
translate([200,-200,0])
//translate([-10,box_inner[1] / 2, box_inner[2] / 2])
//rotate([90,0,90])
//linear_extrude(height=3)
speaker_plate();
translate([100,-200,0])
//translate([210,box_inner[1] / 2, box_inner[2] / 2])
//rotate([90,0,90])
//linear_extrude(height=3)
 speaker_plate();

 
 //testing plate for all holes
 translate([0,-200,0])
//inear_extrude(height=3)
 difference(){
    square([80,50], center=true);
    translate([-25,0])
    circle(d=4, center=true);
    translate([-15,0])
    circle(d=7, center=true);
    translate([-5,0])
    circle(d=8, center=true);
    translate([15,0])
    circle(d=29, center=true);
 }
 
 //model of rpi to check for hole alignment
//translate([1,85,70])
//rotate([0,90,-90])
//    rpi();
 
// render the box
player_box(box_inner, thickness, tabs);