// This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

include <util.scad>

$fn = 64;

color("SaddleBrown") difference() {
  // case
  hull() {
    translate([-case_thickness, -case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius+0.5);
    translate([pcb_width-2*pcb_radius+case_thickness, -case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius+0.5);
    translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius+0.5);
    translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius+0.5);
  }

  // pcb
  translate([0, 0, case_bottom_thickness]) hull() {
    cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius+1);
    translate([pcb_width-2*pcb_radius, 0, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius+1);
    translate([0, pcb_depth-2*pcb_radius, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius+1);
    translate([pcb_width-2*pcb_radius, pcb_depth-2*pcb_radius, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, r=pcb_radius+1);
  }

  // plate_mounting
  translate([20, pcb_depth - pcb_radius+1, case_thickness+standoff_height+pcb_thickness+5-plate_thickness]) lug(hole=false);
  translate([pcb_width-2*pcb_radius - 20, pcb_depth - pcb_radius+1, case_thickness+standoff_height+pcb_thickness+5-plate_thickness]) lug(hole=false);
  translate([20, -pcb_radius-1, case_thickness+standoff_height+pcb_thickness+5-plate_thickness]) lug(north_facing=false, hole=false);
  translate([pcb_width-2*pcb_radius - 20, -pcb_radius-1, case_thickness+standoff_height+pcb_thickness+5-plate_thickness]) lug(north_facing=false, hole=false);
  // screw holes
  translate([20, pcb_depth - pcb_radius+1 + 2, case_thickness+standoff_height+pcb_thickness+5-plate_thickness-3]) cylinder(h=3, d=2);
  translate([pcb_width-2*pcb_radius - 20, pcb_depth - pcb_radius+1 + 2, case_thickness+standoff_height+pcb_thickness+5-plate_thickness-3]) cylinder(h=3, d=2);
  translate([20, -pcb_radius-1 - 2, case_thickness+standoff_height+pcb_thickness+5-plate_thickness-3]) cylinder(h=3, d=2);
  translate([pcb_width-2*pcb_radius - 20, -pcb_radius-1 - 2, case_thickness+standoff_height+pcb_thickness+5-plate_thickness-3]) cylinder(h=3, d=2);
  
  // USB-C daughter board
  translate([pcb_width/2-pcb_radius, pcb_depth-pcb_radius+1-pololu_depth/2, case_bottom_thickness - pcb_thickness/2]) {
    translate([0,pololu_depth/2-case_thickness+5,0.8+3/2]) rotate([-90,0,0]) hull() {
      translate([-7/2,0,0]) cylinder(h=case_thickness+2, d=8);
      translate([7/2,0,0]) cylinder(h=case_thickness+2, d=8);
    }
    cube([pololu_width, pololu_depth, pcb_thickness+0.1], center=true);
    // screw holes
    translate([-pololu_width/2+pololu_hole_spacing, pololu_depth/2-pololu_hole_spacing, -pcb_thickness/2-2]) cylinder(h=2, r=pololu_holes_radius);
    translate([pololu_width/2-pololu_hole_spacing, pololu_depth/2-pololu_hole_spacing, -pcb_thickness/2-2]) cylinder(h=2, r=pololu_holes_radius);
  }
  
  // TODO: make dependent on case size
  translate([65,26.75,case_bottom_thickness/2]) {
    cube([10,40,case_bottom_thickness/2+1]);
    cube([72,10,case_bottom_thickness/2+1]);
  }
  
  // screw holes for upper case
  translate([-case_thickness, -case_thickness, 0]) cylinder(h=2, d=4);
  translate([pcb_width-2*pcb_radius+case_thickness, -case_thickness, 0]) cylinder(h=2, d=4);
  translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=2, d=4);
  translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=2, d=4);
  
  translate([-case_thickness, -case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, d=2);
  translate([pcb_width-2*pcb_radius+case_thickness, -case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, d=2);
  translate([-case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, d=2);
  translate([pcb_width-2*pcb_radius+case_thickness, pcb_depth-2*pcb_radius+case_thickness, 0]) cylinder(h=case_thickness+standoff_height+pcb_thickness+5, d=2);
}


// mounting standoffs
color("SaddleBrown") for(i = [0 : len(mounting_holes)-1]) {
  translate([mounting_holes[i][0] - pcb_radius, mounting_holes[i][1] - pcb_radius, case_bottom_thickness]) difference() {
    cylinder(h=standoff_height, d=4);
    cylinder(h=standoff_height, d=2);
  }
}