// X sensor
$fa = 1;
$fs = 0.4;

ang  = 42;
high = 17;
dy   = sin(ang)*20;
dx   = cos(ang)*20;

difference(){
    linear_extrude(high){
        polygon([[0,0], [0,5], [sin(ang)*20, 5+sin(ang)*20],
        [18, 5+sin(ang)*20], [18, 3], [8, 0], [0,0]]);
    }
    translate([11, 7, -0.01])               // bolt hole
        cylinder(d=4, h=high+0.02);
    translate([11, 7, high-4])              // bolt hole
        cylinder(d=8, h=5);
    translate([5+5*sin(ang),5*cos(ang),14]) // microswitch holes
        rotate([270,0,ang])
            cylinder(d=1.6, h=20);
    translate([5+(5+9.5)*sin(ang),(5+9.5)*cos(ang), 14])
        rotate([270,0,ang])
            cylinder(d=1.6, h=20);
}