support_width = 51.0;
support_height = 13.0;
support_length = 25.0;

support_angle = 12.0;

support_width_2 = support_width / 2.0;
rear_support_height = support_height + support_height * tan( support_angle );

/*support_points = [ [support_width_2, -13.0, 0,0 ],
                    [ support_width_2, 0.0, 0,0 ],
                    [ support_width_2, 12.0, support_height ],
                    [ support_width_2, -13.0, rear_support_height ],
                    [ -support_width_2, -13.0, 0,0 ],
                    [ -support_width_2, 0.0, 0,0 ],
                    [ -support_width_2, 12.0, support_height ],
                    [ -support_width_2, -13.0, rear_support_height ] ];
                    
supportpoints = [
  [  0,  0,  0 ],  //0
  [ 10,  0,  0 ],  //1
  [ 10,  7,  0 ],  //2
  [  0,  7,  0 ],  //3
  [  0,  0,  5 ],  //4
  [ 10,  0,  5 ],  //5
  [ 10,  7,  5 ],  //6
  [  0,  7,  5 ]]; //7    
support_faces = [  [0,1,2,3],  // bottom
  [4,5,1,0],  // front
  [7,6,5,4],  // top
  [5,6,2,1],  // right
  [6,7,3,2],  // back
  [7,4,0,3]];

polyhedron( support_points, support_faces );
*/
module raw_rifle_support () {
    CubePoints = [
      [  0,  0,  0 ],  //0
      [ 15,  0,  0 ],  //1
      [ 15,  support_width,  0 ],  //2
      [  0,  support_width,  0 ],  //3
      [  0,  0,  rear_support_height ],  //4
      [ 25,  0,  support_height ],  //5
      [ 25,  support_width,  support_height ],  //6
      [  0,  support_width,  rear_support_height ]]; //7
      
    CubeFaces = [
      [0,1,2,3],  // bottom
      [4,5,1,0],  // front
      [7,6,5,4],  // top
      [5,6,2,1],  // right
      [6,7,3,2],  // back
      [7,4,0,3]]; // left
      
    polyhedron( CubePoints, CubeFaces );                   
}

module rifle_corner () {
    difference(){
        
        cube([8.0, support_width, 8.0 ] );
        translate([0.8,support_height+13,9.99])
        rotate([90,0,0])
        
        
        cylinder(h = 60.0, r = 10.0, center = true, $fn=90);
    }
}

module rifle_corner2 () {
    difference(){
        
        cube([8.5, support_width, 8.0 ] );
        translate([0.0,support_height+15,10.5])
        rotate([90,0,0])
        
        
        cylinder(h = 60.0, r = 10.5, center = true, $fn=90);
    }
}
module hand_corner () {
    difference(){
        
        cube([20.0, support_width, 20.0 ] );
        translate([0,support_height+15,0])
        rotate([90,0,0])
        
        
        cylinder(h = 60.0, r = 10.0, center = true, $fn=90);
    }
}

module right_side(){
    union(){
        
        translate([6,0,0])
        sphere(r=8);
        
        translate([6,0,0])
        cylinder(h=30,r=8);
        }
}



module rifle_support() {
    difference() {
        raw_rifle_support();
        translate([9.9,0,0])
        rifle_corner2();
        rotate([0,-95,0])
        translate([4,0,-10])
        hand_corner();
    
    }
}

module screw_hole(){
    union(){
        cylinder(h=20,r=2.25, center=true, $fn=90 );
        translate([0,0,12])
        cylinder(h=5,r=3.85, center = true, $fn=90 );
    }
}

   
difference(){

    rifle_support();

    rotate([0,-40,0])
    translate([12,10,-6.9])
    screw_hole();
    
    rotate([0,-40,0])
    translate([12,35,-6.9])
    screw_hole();
        
    
    rotate([0,-90,3])
    translate([-5,support_width+1,-12])
    right_side();

}



    
        
    
/*
cylinder(h = 60.0, r = 10.0, center = true );

translate( [20.0,20.0,0.0])

cylinder(h = 60.0, r = 7.0, center = true );

*/