$fn=60;

include <BOSL2/std.scad>

thickness=10;

module bearing() {
    color("grey") tube(l=5, od=16, id=4);
    }

module m5bolt() {
    translate([0,0,-3]) {
    zcyl(l=5, d=10);
    translate([0,0,10]) zcyl(l=15, d=5.5);
    }   
}

difference() {
    union() {
        cuboid([150,20,thickness], rounding=2);
        translate([74,0,0]) zcyl(l=thickness, d=20, rounding=2);
        translate([-74,0,0]) zcyl(l=thickness, d=20, rounding=2);
    }
    translate([74,0,2]) zcyl(l=thickness-4, d=12.4, rounding=-1);
    translate([-74,0,0]) {
        m5bolt();
        translate([0,0,3]) bearing();
    }
    m5bolt();
    translate([0,0,3]) bearing();
    translate([40,0,0]) {
        translate([0,10,0]) scale([1,2,1]) zcyl(l=2, d=10, rounding=1);
        translate([0,6.5,0]) zcyl(l=10, d=3.5, rounding=0);
        translate([0,-10,0]) scale([1,2,1]) zcyl(l=2, d=10, rounding=1);
        translate([0,-6.5,0]) zcyl(l=10, d=3.5, rounding=0);
    }
}