3D/tir_sportif/dioptre-pédagogique/scad/screws.scad

$fn=80;

include <threads.scad>
include <BOSL2/std.scad>
include <BOSL2/gears.scad>

sl=75;
td=11;
tp=4;
sw=5;
cp=7;
te1=12;
te2=25;
pa=20;

module l_screw() {
    mirror([0,1,0]) RodStart(sw*2, sw, thread_len=sl, thread_diam=td, thread_pitch=tp);
    translate([0,0,sw]) {
        linear_extrude(sw, center=true)
        spur_gear2d(circ_pitch=cp, teeth=te1,  pressure_angle=pa);
    }
    /* translate([0,0,sl+sw]) zcyl(l=sw, d=td+1, rounding=1); */ 
}
module l_bolt() {
    difference() {
        cuboid([20,20,20], rounding=1);
        zcyl(l=20, d=15);
    }
    translate([0,0,-10]) mirror([0,1,0]) RodEnd(15, 20, thread_len=20, thread_diam=12, thread_pitch=4);
}
module r_screw() {
    RodStart(sw*2, sw, thread_len=sl, thread_diam=td, thread_pitch=tp);
    translate([0,0,sw]) {
        linear_extrude(sw, center=true)
        spur_gear2d(circ_pitch=cp, teeth=te1,  pressure_angle=pa);
    }
    /* translate([0,0,sl+sw]) zcyl(l=sw, d=td+1, rounding=1); */
}
module r_bolt() {
    difference() {
        cuboid([20,20,20], rounding=1);
        zcyl(l=20, d=15);
    }
    translate([0,0,-10]) RodEnd(15, 20, thread_len=20, thread_diam=12, thread_pitch=4);
}
module plate() {
    /* Main */
    cuboid([45,3,45], rounding=1);
    translate([21,13,16]) cuboid([3,28,5], rounding=1);
    translate([-21,13,16]) cuboid([3,28,5], rounding=1);
    translate([21,13,-16]) cuboid([3,28,5], rounding=1);
    translate([-21,13,-16]) cuboid([3,28,5], rounding=1);
    //
    translate([16,-13,21]) cuboid([5,28,3], rounding=1);
    translate([-16,-13,21]) cuboid([5,28,3], rounding=1);
    translate([16,-13,-21]) cuboid([5,28,3], rounding=1);
    translate([-16,-13,-21]) cuboid([5,28,3], rounding=1);
    //
    difference() {
        cuboid([30,14,30], rounding=1);
        translate([0,-6,0]) cuboid([21,4,55], rounding=1);
        translate([0,6,0]) cuboid([55,4,21], rounding=1);
    }
    // Front
    translate([0,-26,0]) cuboid([45,3,45], rounding=1);
    translate([0,-31,0]) rotate([90,0,0]) tube(od=16, wall=2, h=10, rounding=1);
    // Back
    translate([0,26,0]) cuboid([45,3,45], rounding=1);
}

/*[screws]*/
/*[x_axis]*/
color("cyan") {
    translate([-14,0,0]) l_bolt();
    translate([14,0,0]) l_bolt();
}
color("blue") {
    translate ([-14,0,sl/2+5]) rotate([0,180,14]) {
       translate([0,0,-10]) cylinder(h=15, d=td+1, $fn=6);
       l_screw();
    }
    translate ([14,0,sl/2+5]) rotate([0,180,0]) l_screw();
}
/*[y_axis */
color("pink") {
    translate([-42,0,0]) rotate([-90,0,0]) r_bolt();
    translate([42,0,0]) rotate([-90,0,0]) l_bolt();
}

color("red") {
    translate ([-42,-sl/2-5,0]) rotate([-90,6,0]) r_screw();

    translate ([0,-sl/2,0]) rotate([90,0,0]) {
        cylinder(h=15, d=td+1, $fn=6);
        linear_extrude(sw, center=true)
        spur_gear2d(circ_pitch=cp, teeth=te2,  pressure_angle=pa);
    }

    translate ([42,-sl/2-5,0]) rotate([-90,-6,0]) l_screw();
}
/*[plates]*/
translate([-28,0,0]) rotate([0,0,-90]) plate();
translate([28,0,0]) rotate([0,0,90]) plate();

/*[enclosure]*/
* color("white", alpha=.5) {
    difference() {
        cuboid([126,86,86], rounding=1);
        translate([3,0,0]) cuboid([126,80,80]);
        translate([0,0,41.5]) cuboid([70,50,5]);
        translate([0,-41.5,0]) cuboid([114,4,74]);
        cuboid([140,55,55], rounding=20);
        translate([-14,0,38.5]) zcyl(l=10, d=td+2);
        translate([14,0,40]) zcyl(l=4, d=td+1);
        translate([0,-38.5,0]) ycyl(l=10, d=td+2);
        translate([-42,-40,0]) ycyl(l=4, d=td+1);
        translate([42,-40,0]) ycyl(l=4, d=td+1);
    }
    color("grey") {
        translate([0,-33,0]) {
            ycyl(l=3, d=20);
            cuboid([10,2,85]);
        }
    }
    translate([-14,0,-38.5]) tube(od=16, wall=1.5, h=5, rounding=1);
    translate([14,0,-38.5]) tube(od=16, wall=1.5, h=5, rounding=1);
    rotate([90,0,0]) {
        translate([-42,0,-38.5]) tube(od=16, wall=1.5, h=5, rounding=1);
        translate([42,0,-38.5]) tube(od=16, wall=1.5, h=5, rounding=1);
    }
    /*[covers]*/
    // Top
    translate ([0,0,65]) {
        difference() {
            union() {
                cuboid([76,56,2], rounding=1);
                translate([0,0,-1.5]) cuboid([70,50,5], rounding=1);
            }
            translate([-14,0,-1]) zcyl(l=6, d=td+2);
            translate([14,0,-3]) zcyl(l=3, d=td+1);
        }
    }
    // Right
    translate ([0,-65,0]) {
        difference() {
            union() {
                cuboid([126,2,86], rounding=1);
                translate([0,1.5,0]) cuboid([113,5,73], rounding=1);
            }
            translate([0,1,0]) ycyl(l=6, d=td+2);
            translate([-42,3,0]) ycyl(l=3, d=td+1);
            translate([42,3,0]) ycyl(l=3, d=td+1);
        }
    }
}

/*[grp_holder]*/
* translate([68,0,0]) rotate([0,0,-90]) {
    difference() {
        union() {
            translate([0,0,16]) {
                rotate([90,0,0]) {
                    linear_extrude(6, center=true)
                    trapezoid(55, 20, 80, rounding=5);
                }
            }
            translate([0,0,100]) {
                cuboid([126,6,126], rounding=1);
            }
         }
        translate([0,0,23]) {
                rotate([90,0,0]) {
                    linear_extrude(6, center=true)
                    trapezoid(27, 30, 60, rounding=5);
                }
            }
        translate([0,-1.5,100]) cuboid([121,5,121]);
        * translate([0,0,100]) cuboid([116,7,116], rounding=2);
        ycyl(l=6, d=10, rounding=-3);
     }
/*[plexi]*/
color("cyan", alpha=.3) translate([0,-1,100]) cuboid([120,4,120], rounding=1);
}