// Z-sensor bracket
// use the rounding library
// ass https://learn.cadhub.xyz/docs/round-anything/api-reference
include <Round-Anything/polyround.scad>

$fa = 1;
$fs = 0.4;

p0 = [0,0];
f1 = 4;     // height above metal
//a1 would be 0
x1 = 0;
y1 = f1;
p1 = [x1,y1];
f2 = 15;        // length of first side
a2 = 90;        // angle to Y axis
x2 = x1 + f2*sin(a2);
y2 = y1+f2*cos(a2);
p2 = [x2,y2];
f3 = 10;
a3 = 35;
x3 = x2 + f3*sin(a3);
y3 = y2 + f3*cos(a3);
p3 = [x3,y3];
f4 = 20;
a4 = 88;
x4 = x3 + f4*sin(a4);
y4 = y3 + f4*cos(a4);
p4 = [x4,y4];
p5 = [x4,0];

radiiPoints = [     // list of the vertices but with added radius
    [0,0,0],
    [x1, y1, 0],
    [x2, y2, 0],
    [x3, y3, 5],    // need a round-out here
    [x4, y4, 0],
    [x4, 0,  0],
    [0, 0, 0]
];

difference(){
    union(){
        translate([0,8,0])
            linear_extrude(8+8)
                polygon(polyRound(radiiPoints, 30));
        translate([0,0,14])
            cube([40.9,8,2]);
        translate([0,0,8])
            cube([40.9,2,8]);
        translate([0,0,8])
            cube([2,8,8]);
    }
    translate([9, 8-0.01, 4]){
        rotate([270,0,0]){
            cylinder(d=1.7, h=5);       // M2 tap is 1.6mm
        }
    }
    translate([9+9.5, 8-0.01, 4]){      // 9.5mm between centers
        rotate([270,0,0]){
            cylinder(d=1.7, h=5);
        }
    }
    translate([34, 8-0.01, 4]){
        rotate([270,0,0]){
            cylinder(d=4.0, h=20);
        }
    }
}