include <common.scad>; include <daylight_spool_mount.scad>; COUPLING_D = 37; WASHER_D = 35.7; //1 + 1/3 diameter? 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; module hex (diag = 10, h = 1) { cylinder(r = diag / 2, h = h, center = true, $fn = 6); } module motor_shaft () { difference () { cylinder(r = R(MOTOR_SHAFT_D), 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 + 0.3; 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 = R(D), h = Z, center = true, $fn = 40); //bolt void cylinder(r = R(2.5), 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 = R(COUPLING_D), h = MAGNET_H + H, center = true, $fn = 100); translate([0, 0, -6]) cylinder(r = R(12.5), h = 10, center = true, $fn = 60); translate([0, 0, -5]) cylinder(r = R(20), h = 5, 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 = R(MAGNET_D), h = MAGNET_H, center = true, $fn = 50); } } } //m3 nut translate([6, 0, -9]) { cube([2.75, 5.75, 10], center = true); translate([0, 0, 5]) rotate([0, 90, 0]) { cylinder(r = R(6.75), h = 2.75, center = true, $fn = 6); translate([0, 0, 4]) cylinder(r = R(3.25), h = 20, center = true, $fn = 30); translate([0, 0, 13.5]) cylinder(r = R(6), h = 20, center = true, $fn = 30); } } } } module slip_coupling (MAGNET_H = 2.5) { H = 16; difference () { translate([0, 0, 2]) cylinder(r = R(45), h = H, center = true, $fn = 100); translate([0, 0, 2 -(H / 2) + (MAGNET_H + 3) / 2]) cylinder(r = R(COUPLING_D + 0.7), h = MAGNET_H + 3.01, center = true, $fn = 160); translate([0, 0, 2 -(H / 2) + (MAGNET_H + 3) + (WASHER_H / 2)]) cylinder(r = R(WASHER_D), h = WASHER_H, center = true, $fn = 160); translate([0, 0, 2 + (H / 2) - (5 / 2)]) cube([25, 10, 5.01], center = true); translate([0, 0, 2 + (H / 2) - (5 / 2)]) cube([10, 25, 5.01], center = true); //corners with voids for M3 translate([-8.75, -8.75, 2 + (H / 2) - (5 / 2)]) { translate([0, 0, 1]) cube([(25 - 10) / 2, (25 - 10) / 2, 5.01], center = true); cylinder(r = R(3.25), h = 20, center = true, $fn = 40); translate([0, 0, -4.25]) hex(6, 2.75); } translate([8.75, 8.75, 2 + (H / 2) - (5 / 2)]) { translate([0, 0, 1]) cube([(25 - 10) / 2, (25 - 10) / 2, 5.01], center = true); cylinder(r = R(3.25), h = 20, center = true, $fn = 40); translate([0, 0, -4.25]) hex(6, 2.75); } } } module daylight_spool_insert () { translate([0, 0, 14]) reel_holder(true, false); union () { cube([25 - .4, 10 - .4, 5], center = true); cube([10 - .4, 25 - .4, 5], center = true); translate([-8.75, -8.75, 0]) difference () { translate([.2, .2, 1/2]) cube([(25 - 10) / 2, (25 - 10) / 2, 4], center = true); cylinder(r = R(3.25), h = 20, center = true, $fn = 40); translate([0, 0, 2]) cylinder(r = R(5.75), h = 3.5, center = true, $fn = 40); } translate([8.75, 8.75, 0]) difference () { translate([ -.2, -.2, 1/2]) cube([(25 - 10) / 2, (25 - 10) / 2, 4], center = true); cylinder(r = R(3.25), h = 20, center = true, $fn = 40); translate([0, 0, 2]) cylinder(r = R(5.75), h = 3.5, center = true, $fn = 40); } } } module motor_mount_void (D, Z) { cylinder(r = R(D), h = Z, center = true, $fn = 40); //bolt void translate([0, 0, 5]) cylinder(r = R(3.25), h = Z + 10, center = true, $fn = 40); translate([0, 0, 4.75]) cylinder(r = R(6), h = 3.5, center = true, $fn = 40); } module mount_plate_void () { cylinder(r = R(4.25), h = 20, center = true, $fn = 40); translate([0, 0, 0.5]) cylinder(r = R(8), h = 3, center = true, $fn = 40); } module mount_plate () { Z = 1.5; D = 7.5 + 1.5; X = 60; Y = 60; MOUNT_X = 42; MOUNT_Y = 42; CORNER = 3; X_CORNER = (X / 2) - (CORNER / 2); Y_CORNER = (Y / 2) - (CORNER / 2); //center //color("red") cylinder(r = 15 / 2, h = 20, center = true, $fn = 60); difference () { translate([0, 0, 3.26 - .5]) cube([X, Y, 7], center = true); //motor void (centered) translate([7, 0, 0]) { translate([-(46 / 2) + 15 + 1, 0, 0]) cylinder(r = R(15), h = 20, center = true, $fn = 60); translate([(MOTOR_MOUNT_X / 2)+1, (MOTOR_MOUNT_Y / 2), 0]) motor_mount_void(D, Z); translate([-(MOTOR_MOUNT_X / 2)+1, (MOTOR_MOUNT_Y / 2), 0]) motor_mount_void(D, Z); translate([(MOTOR_MOUNT_X / 2)+1, -(MOTOR_MOUNT_Y / 2), 0]) motor_mount_void(D, Z); translate([-(MOTOR_MOUNT_X / 2)+1, -(MOTOR_MOUNT_Y / 2), 0]) motor_mount_void(D, Z); translate([-8 + 12.5 + 1, 0, 0]) cube([7.5, 17, Z], center = true); } 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([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); } //centered, minimal geometry needed to add //58x52 module minimal_mount () { difference () { mount_plate(); translate([50 + 29, 0, 0]) cube([100, 100, 100], center = true); translate([-50 - 29, 0, 0]) cube([100, 100, 100], center = true); translate([0, 50 + 26, 0]) cube([100, 100, 100], center = true); translate([0, -50 - 26, 0]) cube([100, 100, 100], center = true); } } module debug_assembled () { translate([(46 / 2) - 14.5, 0, 0]) rotate([180, 0, 0]) geared_motor(); color("green") translate([0, 0, 11]) mount_plate(); color("blue") translate([0, 0, 23]) rotate([0, 0, -90]) //magnetic_coupling(); difference () { translate([0, 0, 26.5]) slip_coupling(); translate([-50, 0, 0]) cube([100, 100, 150], center = true); } color("red") translate([0, 0, 34]) daylight_spool_insert(); } PART = "mount_plate"; if (PART == "slip_coupling") { slip_coupling(); } else if (PART == "magnetic_coupling") { magnetic_coupling(); } else if (PART == "mount_plate") { //42x42 M4 mounting holes mount_plate(); } else if (PART == "daylight_spool_insert") { daylight_spool_insert(); } else if (PART == "minimal_mount") { minimal_mount(); } else if (PART == "debug") { debug_assembled(); }