takeup/takeup.scad

include <daylight_spool_mount.scad>;

COUPLING_D = 37;

WASHER_D = 35.;
WASHER_H = 2.4;

MOTOR_SHAFT_D = 6;
MOTOR_SHAFT_H = 16;
MOTOR_SHAFT_HOBBLE = 1;

MOTOR_MOUNT_X = 32.5;
MOTOR_MOUNT_Y = 17.5;

//Geartisan Worm Gear Motor - JSX40-370
module motor () {
    cube([46, 32, 21], center = true);
    translate([(46 / 2) + (30 / 2), 0, 1.5]) rotate([0, 90, 0]) cylinder(r = 24 / 2, h = 30, center = true, $fn = 80);
    translate([-(46 / 2) + 14.5, 0, -18.5]) rotate([0, 0, 90]) motor_shaft();
    //pad
    translate([-(46 / 2) + 14.5, 0, -(1 / 2) - 10.5]) cylinder(r = 13 / 2, h = 1, center = true, $fn = 60);
    //mount pads
    translate([-0.5, 0, -(1.5 / 2) - 10.5]) motor_mounts();
}

module motor_shaft () {
    difference () {
        cylinder(r = MOTOR_SHAFT_D / 2, h = MOTOR_SHAFT_H, center = true, $fn = 60);
        translate([MOTOR_SHAFT_D - MOTOR_SHAFT_HOBBLE, 0, 0]) cube([MOTOR_SHAFT_D, MOTOR_SHAFT_D, MOTOR_SHAFT_H + 1], center = true);
    }
}

module motor_mounts () {
    Z = 1.5;
    D = 7.5;
    
    translate([MOTOR_MOUNT_X / 2, MOTOR_MOUNT_Y / 2, 0]) motor_mount_pad(D, Z);
    translate([-MOTOR_MOUNT_X / 2, MOTOR_MOUNT_Y / 2, 0]) motor_mount_pad(D, Z);
    translate([MOTOR_MOUNT_X / 2, -MOTOR_MOUNT_Y / 2, 0]) motor_mount_pad(D, Z);
    translate([-MOTOR_MOUNT_X / 2, -MOTOR_MOUNT_Y / 2, 0]) motor_mount_pad(D, Z);
}

module motor_mount_pad (D, Z) {
    difference () {
        cylinder(r = D / 2, h = Z, center = true, $fn = 40);
        //bolt void
        cylinder(r = 2.5 / 2, h = Z + 1, center = true, $fn = 40);
    }
}

module magnetic_coupling (MAGNETS = 4, MAGNET_D = 8.1, MAGNET_H = 2.5) {
    H = 3;
    OFFSET = 12;
    difference () {
        union () {
            cylinder(r = COUPLING_D / 2, h = MAGNET_H + H, center = true, $fn = 100);
            translate([0, 0, -6]) cylinder(r = 12.5 / 2, h = 10, center = true, $fn = 60);
        }
        //motor shaft void
        scale([1.1, 1.1, 2]) motor_shaft();
        //magnet voids
        for (i = [0 : MAGNETS - 1]) {
            rotate([0, 0, i * (360 / MAGNETS)]) translate([0, OFFSET, H - MAGNET_H + 1.01]) cylinder(r = MAGNET_D / 2, h = MAGNET_H, center = true, $fn = 50);
        }
    }
}

module slip_coupling (MAGNET_H = 2.5) {
    H = 12;
    difference () {
        cylinder(r = 45 / 2, h = H, center = true, $fn = 100);
        translate([0, 0, -(H / 2) + (MAGNET_H + 3) / 2]) cylinder(r = (COUPLING_D + 0.7) / 2, h = MAGNET_H + 3.01, center = true, $fn = 160);
        translate([0, 0, -(H / 2) + (MAGNET_H + 3) + (WASHER_H / 2)]) cylinder(r = WASHER_D / 2, h = WASHER_H, center = true, $fn = 160); 
    }
    translate([0, 0, 18.25]) reel_holder();
}

module motor_mount_void (D, Z) {
    cylinder(r = D / 2, h = Z, center = true, $fn = 40);
    //bolt void
    translate([0, 0, 5]) cylinder(r = 3.25 / 2, h = Z + 10, center = true, $fn = 40);
    translate([0, 0, 4.75]) cylinder(r = 6 / 2, h = 3.5, center = true, $fn = 40);
}

module mount_plate_void () {
    cylinder(r = 4 / 2, h = 20, center = true, $fn = 40);  
    translate([0, 0, 0.5]) cylinder(r2 = 4/2, r1 = 6 / 2, h = 3, center = true, $fn = 40);  
}

module mount_plate () {
    Z = 1.5;
    D = 7.5 + 0.7;
    
    MOUNT_X = 40;
    MOUNT_Y = 55;
    
    CORNER = 4;
    X_CORNER = (60 / 2) - (CORNER / 2);
    Y_CORNER = (70 / 2) - (CORNER / 2);
    
    difference () {
        translate([0, 0, 3.26 - .5]) cube([60, 70, 7], center = true);
        translate([MOTOR_MOUNT_X / 2, MOTOR_MOUNT_Y / 2, 0]) motor_mount_void(D, Z);
        translate([-MOTOR_MOUNT_X / 2, MOTOR_MOUNT_Y / 2, 0]) motor_mount_void(D, Z);
        translate([MOTOR_MOUNT_X / 2, -MOTOR_MOUNT_Y / 2, 0]) motor_mount_void(D, Z);
        translate([-MOTOR_MOUNT_X / 2, -MOTOR_MOUNT_Y / 2, 0]) motor_mount_void(D, Z);
        translate([-(46 / 2) + 15, 0, 0]) cylinder(r = 13.9 / 2, h = 20, center = true, $fn = 60);
        translate([MOUNT_X / 2,  MOUNT_Y / 2, 0]) mount_plate_void();
        translate([-MOUNT_X / 2, MOUNT_Y / 2, 0]) mount_plate_void();
        translate([MOUNT_X / 2, -MOUNT_Y / 2, 0]) mount_plate_void();
        translate([-MOUNT_X / 2,-MOUNT_Y / 2, 0]) mount_plate_void();
        translate([-8 + 12.5, 0, 0]) cube([7, 17, Z], center = true);
        translate([X_CORNER, Y_CORNER, 3.26 - .5]) cube([CORNER, CORNER, 8], center = true);
        translate([-X_CORNER, Y_CORNER, 3.26 - .5]) cube([CORNER, CORNER, 8], center = true);
        translate([X_CORNER, -Y_CORNER, 3.26 - .5]) cube([CORNER, CORNER, 8], center = true);
        translate([-X_CORNER, -Y_CORNER, 3.26 - .5]) cube([CORNER, CORNER, 8], center = true);
    }
    translate([X_CORNER - (CORNER / 2), Y_CORNER - (CORNER / 2), 3.26 - .5]) cylinder(r = CORNER, h = 7, center = true, $fn = 40);
    translate([-X_CORNER + (CORNER / 2), Y_CORNER - (CORNER / 2), 3.26 - .5]) cylinder(r = CORNER, h = 7, center = true, $fn = 40);
        translate([X_CORNER - (CORNER / 2), -Y_CORNER + (CORNER / 2), 3.26 - .5]) cylinder(r = CORNER, h = 7, center = true, $fn = 40);
    translate([-X_CORNER + (CORNER / 2), -Y_CORNER + (CORNER / 2), 3.26 - .5]) cylinder(r = CORNER, h = 7, center = true, $fn = 40);
}

module debug_assembled () {
    translate([(46 / 2) - 14.5, 0, 0]) rotate([180, 0, 0]) motor();
    color("blue") translate([0, 0, 23]) rotate([0, 0, -90]) magnetic_coupling();
    color("green") translate([8, 0, 11]) mount_plate(); 
    translate([0, 0, 26.5]) slip_coupling();
}

//

PART = "debug";

if (PART == "slip_coupling") {
    slip_coupling();
} else if (PART == "magnetic_coupling") {
    magnetic_coupling();
} else if (PART == "mount_plate") {
    mount_plate(); 
} else if (PART == "debug") {
    debug_assembled();
}