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corner.scad
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corner.scad
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use <string.scad>;
use <MQR-code.scad>;
/* [Shapes] */
edge_shape = "rectangular"; // [rectangular, circular, sphere]
edge_hole_shape = "rectangular"; // [rectangular, circular, none]
// The main hole is usefull if you want a mobile construction
main_hole_shape = "none"; // [rectangular, circular, none]
// The main shape of your corner.
shape = "Personalised"; // [Extremity, I, T, L, X, Cube_corner, T_corner, Half_star, Star, Tetrahedron_corner, Octahedron_corner, Personalised]
// On several shapes, you can change the number of members.
edges_number = 1; // [0:min, 1:medium, 2:max]
// In case of a personalised part, set here the part members angles, by pairs of vertical angle and horizontal angle.
angles = "090,180,090,225,090,270,000,090";
/* [Dimentions] */
// width of the part.
width = 7.5;
// Set 0 if you want than edge length equals Width.
edge_length = 14;
// Edges hole width size.
hole_width = 4.5;
// Set 0 if you want than edge length equals Width.
hole_deep = 8.5;
// Difference between the main hole size and the edges hole size.
main_hole_slack = 0.2;
/* [Clip] */
// This clip allows you to hold the rods on the plastic part.
clip_type = "hole"; // [none, hole]
clip_width = 2;
clip_position = 4;
/* [Bevel] */
edge_bevel = "none"; // [none, thin, medium, large, sphere]
external_bevel = "sphere"; // [none, sphere]
holes_bevel = "none"; // [none, thin, medium, large]
/* [Hidden] */
id = 12345;
notch_size = 1.5;
code = false;
/* Here is the serious stuff */
pos=[0,0,0];
translate(pos) print_parts(shape);
module print_parts(part)
{
if (part == "Extremity")
part([[90,0]]);
else if (part == "I")
part([[90,0], [90,180]]);
else if (part == "T")
if (edges_number == 0)
part([[90,0], [90,90], [90,180]]);
else
part([[90,0], [90,45], [90,90], [90,135], [90,180]]);
else if (part == "L")
if (edges_number == 0)
part([[90,0], [90,90]]);
else
part([[90,0], [90,45], [90,90]]);
else if (part == "X")
if (edges_number == 0)
part([[90,0], [90,90], [90,180], [90,270]]);
else
part([[90,0], [90,45], [90,90], [90,135], [90,180], [90,225], [90,270], [90,315]]);
else if (part == "Cube_corner")
if (edges_number == 0)
part([[0,0],[90,0],[90,90]]);
else if (edges_number == 1)
part([[0,0],[45,0],[90,0],[45,90],[90,90]]);
else
part([[0,0],[45,0],[90,0],[45,90],[90,90],[90,45]]);
else if (part == "T_corner")
if (edges_number == 0)
part([[0,0],[90,0],[90,90],[90,180]]);
else if (edges_number == 1)
part([[0,0],[45, 0],[90,0],[45,90],[90,90],[45,180],[90,180]]);
else
part([[0,0],[45, 0],[90,0],[45,90],[90,90],[45,180],[90,180],[90,45],[90,135]]);
else if (part == "Half_star")
if (edges_number == 0)
part([[0,0],[90,0],[90,90],[90,180],[90,270]]);
else if (edges_number == 1)
part([[0,0],[45,0],[90,0],[45,90],[90,90],[45,180],[90,180],[90,270],[45,270]]);
else
part([[0,0],[45,0],[90,0],[45,90],[90,90],[45,180],[90,180],[90,45],[90,135],[90,270],[45,270],[90,225],[90,315]]);
else if (part == "Star")
if (edges_number == 0)
part([[0,0],[90,0],[90,90],[90,180],[90,270],[180,0]]);
else if (edges_number == 1)
part([[0,0],[45,0],[90,0],[45,90],[90,90],[45,180],[90,180],[90,270],[45,270],[180,0],[135,0],[135,90],[135,180],[135,270]]);
else
part([[0,0],[45,0],[90,0],[45,90],[90,90],[45,180],[90,180],[90,45],[90,135],[90,270],[45,270],[90,225],[90,315],[180,0],[135,0],[135,90],[135,180],[135,270]]);
else if (part == "Tetrahedron_corner")
part([[35.26,0],[35.26,120],[35.26,240]]); // acos(sqrt(6)/3)
else if (part == "Octahedron_corner")
part([[45,0],[45,90],[45,180],[45,270]]); // acos(sqrt(2)/2)
else if (part == "Personalised")
part([[d(0),d(1)],[d(2),d(3)],[d(4),d(5)],[d(6),d(7)],[d(8),d(9)],[d(10),d(11)]]);
}
module part(v)
{
$fn = 50;
edge_length = (edge_length < width) ? width : edge_length;
hole_width = (hole_width >= width) ? width-1 : hole_width;
main_hole_width = hole_width + main_hole_slack;
hole_deep = (hole_deep <=0) ? edge_length : hole_deep;
intersection() {
if (external_bevel == "sphere")
sphere(edge_length);
difference() {
if (edge_shape == "sphere") {
sphere(edge_length);
} else {
union() {
sphere(width/2);
for(i = [0:len(v)-1]) {
if (v[i][0] != -1)
rotate([v[i][0], 0, v[i][1]])
translate([0,0,-width/8]) intersection() {
cylinder(r1=width/2-width/64, r2=width, h=edge_length+width/8);
block(width, edge_length+width/2, edge_shape, bevel = "ext");
}
}
}
}
for(i = [0:len(v)-1]) {
if (v[i][0] != -1)
rotate([v[i][0], 0, v[i][1]]) {
translate([0, 0, edge_length - hole_deep + 0.1])
block(hole_width, hole_deep, edge_hole_shape, bevel = "int");
translate([hole_width/4, -notch_size/2, edge_length-notch_size*0.6])
cube([width/2, notch_size, notch_size]);
if (clip_type == "hole") {
translate([0, 0.5, edge_length-hole_deep+clip_position+1]) rotate([90,0,0]) translate([0, 0, -width/2])
cylinder(r=clip_width/2, h=width+1);
}
}
}
block(main_hole_width, width+1, main_hole_shape);
}
}
if (code == true)
translate([0,0,width/2])
for(i = [0:len(v)-1])
if (v[i][0] != -1)
rotate([v[i][0], 0, v[i][1]])
translate([-hole_width/2, -hole_width/2, edge_length-hole_deep-0.1])
mqr_code(id, hole_width, 4);
}
module block(block_width, length, shape, bevel)
{
ext_bevel = bevel(edge_bevel, block_width)/2;
int_bevel = bevel(holes_bevel, hole_width)*1.5;
length = (length == 0) ? width : length;
translate ([0, 0, length/2-0.1]) /*intersection()*/ {
union() {
if (shape=="rectangular")
cube([block_width, block_width, length], center=true);
else if (shape=="circular")
cylinder(r=block_width/2, h=length, center=true);
else if (shape=="hexagonal")
rotate([0,0,22.5]) cylinder(r=block_width/2, h=length, center=true, $fn=8);
if (bevel == "int")
translate([0, 0, length/2 - block_width/2]) rotate([0,0,45])
cylinder(r1=0, r2 = (edge_hole_shape == "rectangular") ? block_width*0.707 + int_bevel : block_width/2 + int_bevel, h=block_width/2, $fn = (edge_hole_shape == "rectangular") ? 4 : $fn);
}
/*union() {
if (bevel == "ext") {
translate([0, 0, length*1.5 - block_width*0.28 - ext_bevel]) rotate([180,0,45])
cylinder(r1=0, r2 = block_width+0.1, h=block_width+0.1, $fn = (edge_hole_shape == "rectangular") ? 4 : $fn);
translate([0, 0, -length/2]) cube([block_width+0.1, block_width+0.1, length*1.5+0.1], center=true);
}
}*/
}
}
function bevel(type, ref) = (type == "thin") ? ref*0.2 : (type == "medium") ? ref*0.3 : (type == "large") ? ref*0.6 : 0;
function d(i) = (strToInt(getsplit(angles, i, ",")) == undef) ? -1 : strToInt(getsplit(angles, i, ","));