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first.scad
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first.scad
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// Totally phoney model with made up numbers.
// OpenSCAD rocks, though.
$fn = 50;
sphere_dia = 50;
sphere_thi = 4;
board_siz = 32;
board_thi = 1;
motor_dia = 6;
motor_len = 12;
axle_dia = 2;
axle_len = 18;
wheel_dia = 16;
wheel_wid = 5;
wheel_clr = 2;
ground_clr = 2;
motor_off = sphere_dia - (axle_len * 2);
// PCB and components
module motor_model () {
color("blue") translate([0,0,motor_len/2-axle_len/2]) cylinder(d=motor_dia, h=motor_len, center=true);
color("silver") translate([0,0,0]) cylinder(d=axle_dia, h=axle_len, center=true);
translate([0,0,axle_len/2-wheel_wid/2]) {
color("white") cylinder(d=wheel_dia/2, h=wheel_wid-1, center=true);
color("black") difference() {
cylinder(d=wheel_dia, h=wheel_wid, center=true);
cylinder(d=wheel_dia/2, h=wheel_wid+1, center=true);
}
}
}
module motor_clear() {
cylinder(d=motor_dia, h=axle_len+2, center=true);
translate([-motor_dia/2,0,motor_len/2-axle_len/2]) cube([motor_dia, motor_dia, motor_len+2], center=true);
translate([0,0,motor_len/2-axle_len/2]) cube([motor_dia+10, motor_dia+4, motor_len-5], center=true);
translate([wheel_dia/4+wheel_clr/2,0,axle_len/2-1]) cube([wheel_dia/2+wheel_clr, wheel_dia+wheel_clr*2, wheel_wid*2], center=true);
translate([0,0,axle_len/2-1]) cylinder(d=wheel_dia+wheel_clr*2, h=wheel_wid*2, center=true);
}
module motors_model() {
translate([0,motor_off,-motor_dia/2-1]) rotate([90,90,180]) motor_model();
translate([0,-motor_off,-motor_dia/2-1]) rotate([90,90,0]) motor_model();
}
module motors_clear() {
translate([0,motor_off,-motor_dia/2-1]) rotate([90,90,180]) motor_clear();
translate([0,-motor_off,-motor_dia/2-1]) rotate([90,90,0]) motor_clear();
}
module screw_model() {
color("silver") translate([6,0,5]) cylinder(d=1.5, h=30, center=true);
translate([6,0,-9.5]) cylinder(d=4, h=1, center=true);
}
module screw_clear() {
translate([6,0,0]) cylinder(d=2, h=sphere_dia/2, center=true);
translate([6,0,-10]) cylinder(d=5,h=1,center=true);
}
module board_model() {
difference() {
color("red") cube([board_siz,board_siz,board_thi], center=true);
screw_clear();
}
color("silver") translate([21,0,5]) rotate([0,90,0]) cylinder(d=9, h=6, center=true);
color("gold") translate([-10,0,2]) cube([22,13,2], center=true);
}
module board_clear() {
cube([board_siz+1,board_siz+1,board_thi+1], center=true);
cube([board_siz-4,board_siz-5,board_thi+4], center=true);
translate([21,0,5]) rotate([0,90,0]) cylinder(d=10,h=12,center=true);
translate([-10,0,2]) cube([24,15,5], center=true);
}
module lower_shell() {
difference() {
sphere(d=sphere_dia);
translate([0,0,25]) cube([50,50,50], center=true);
translate([0,0,-35]) cube([50,50,50], center=true);
board_clear();
motors_clear();
screw_clear();
hull() {
translate([12,5,-6]) cylinder(d1=4.5, d2=1, h=9, center=true);
translate([12,-5,-6]) cylinder(d1=4.5, d2=1, h=9, center=true);
}
//translate([-19,0,-10.5]) cylinder(d=6, h=2, center=true);
//translate([19,0,-10.5]) cylinder(d=6, h=2, center=true);
translate([-10,0,-4]) cube([9,9,9], center=true);
translate([-13,0,-4]) cube([10,27,9], center=true);
translate([17,0,-4]) cube([4,27,9], center=true);
translate([11,11,-4]) cube([6,5,9], center=true);
translate([11,-11,-4]) cube([6,5,9], center=true);
}
}
module upper_shell() {
difference() {
union() {
sphere(d=sphere_dia);
translate([21,0,5]) rotate([0,90,0]) cylinder(d=13,h=7 ,center=true);
}
intersection() {
sphere(d=sphere_dia-sphere_thi*2);
cube([32,32,50], center=true);
}
translate([0, 0, -sphere_dia]) cube(size=sphere_dia*2, center=true);
motors_clear();
board_clear();
translate([0,0,sphere_dia/2]) cylinder(d=1,h=4,center=true);
rotate([0,45,0]) translate([0,0,sphere_dia/2]) cylinder(d=1,h=4,center=true);
for (i=[0:30:360]) {
rotate([0,45,i]) translate([0,0,sphere_dia/2]) cylinder(d=1,h=4,center=true);
}
for (i=[0:60:360]) {
rotate([0,22.5,i]) translate([0,0,sphere_dia/2]) cylinder(d=1,h=4,center=true);
}
}
}
motors_model();
board_model();
screw_model();
translate([0,0,10]) upper_shell();
translate([0,0,-10]) lower_shell();