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New box_type options #1

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91fd459
Added option chamfered4sides
pincr May 22, 2019
e79839a
Added option rounded4sides2chamfered
pincr May 22, 2019
3548432
Update STL with box_type = rounded4sides2chamfered
pincr May 22, 2019
a32a439
Added box_type option: rounded6sides2chamfered
pincr May 23, 2019
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68 changes: 45 additions & 23 deletions button_box.scad
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Original file line number Diff line number Diff line change
Expand Up @@ -134,7 +134,9 @@ lip_fit=0.35;
has_device=false;//true/false

//what style of box is it
box_type="rounded6sides";//"rounded4sides";//"cuboid","rounded4sides", "rounded6sides", "chamfered6sides"
box_type="rounded6sides2chamfered";//"rounded4sides";//"cuboid","rounded4sides", "rounded6sides", "chamfered6sides", "chamfered4sides", "rounded4sides2chamfered", "rounded6sides2chamfered"

$pma = 45; // Printing Minimal Angle - Minimum angle printed regularly without supports

seam_x = device_xyz[0]*top_bottom_ratio-wall_t + lip_h/2 - clearance_xyz[0]/2;

Expand Down Expand Up @@ -526,22 +528,24 @@ module half_box(box, corner_radius=3, corner_sides=5, lip_h=2, lip_fit=0, top_bo
}
}

module rounded_rectangle_cylinder_hull(x,y,z,r,s){
module rounded_rectangle_cylinder_hull(x,y,z,r,s,chamfered=false){
//cube(size=[x,y,z],center=true);
//echo("number of sides",s);
h = chamfered ? (z-2*r) : z;
hull(){
cross_box(x,y,z,r);//this is to ensure the overall dimensions stay true to those requested even for low-poly cylinders
translate(v=[ x/2 -r , y/2 -r , 0])cylinder(h=z, r=r, center=true, $fn=4*s);
translate(v=[ x/2 -r , -(y/2 -r), 0])cylinder(h=z, r=r, center=true, $fn=4*s);
translate(v=[ -(x/2 -r), -(y/2 -r), 0])cylinder(h=z, r=r, center=true, $fn=4*s);
translate(v=[ -(x/2 -r), y/2 -r , 0])cylinder(h=z, r=r, center=true, $fn=4*s);
translate(v=[ x/2 -r , y/2 -r , 0])cylinder(h=h, r=r, center=true, $fn=4*s);
translate(v=[ x/2 -r , -(y/2 -r), 0])cylinder(h=h, r=r, center=true, $fn=4*s);
translate(v=[ -(x/2 -r), -(y/2 -r), 0])cylinder(h=h, r=r, center=true, $fn=4*s);
translate(v=[ -(x/2 -r), y/2 -r , 0])cylinder(h=h, r=r, center=true, $fn=4*s);
}
}

module cross_box(x,y,z,r){
cube(size=[x-2*r,y-2*r,z],center=true);
cube(size=[x-2*r,y,z-2*r],center=true);
cube(size=[x,y-2*r,z-2*r],center=true);
module cross_box(x,y,z,r,rz=false) {
rz = (rz==false) ? r : rz; // default value of rz=r
cube(size=[x-2*r, y-2*r, z], center=true);
cube(size=[x-2*r, y, z-2*rz], center=true);
cube(size=[x, y-2*r, z-2*rz], center=true);
}

module make_cutouts(box, holes){
Expand Down Expand Up @@ -754,32 +758,50 @@ module box_type(box, box_type="rounded4sides"){
cube(size=[box[0],box[1],box[2]],center=true);
}else if(box_type=="rounded4sides"){
rounded_rectangle_cylinder_hull(box[0],box[1],box[2],box[3],box[4]);
}else if(box_type=="rounded4sides2chamfered"){
rounded_rectangle_cylinder_hull(box[0],box[1],box[2],box[3],box[4],chamfered=true);
}else if(box_type=="rounded6sides"){
rounded_rectangle_sphere_hull(box[0],box[1],box[2],box[3],box[4]);
rounded_rectangle_sphere_hull(box[0],box[1],box[2],box[3],box[4],0);
}else if(box_type=="rounded6sides2chamfered"){
rounded_rectangle_sphere_hull(box[0],box[1],box[2],box[3],box[4],$pma);
}else if(box_type=="chamfered6sides"){
chamfered_rectangle_hull(box[0],box[1],box[2],box[3]);
chamfered_rectangle_hull(box[0],box[1],box[2],box[3],box[3]);
}else if(box_type=="chamfered4sides"){
chamfered_rectangle_hull(box[0],box[1],box[2],box[3],0);
}else{
echo ("unknown box type requested",box_type);
}
}

module chamfered_rectangle_hull(x,y,z,r){
module chamfered_rectangle_hull(x,y,z,r,rz){
hull(){
cross_box(x,y,z,r);//this is to ensure the overall dimensions stay true to those requested even for low-poly cylinders
cross_box(x,y,z,r,rz);//this is to ensure the overall dimensions stay true to those requested even for low-poly cylinders
}
}

module rounded_rectangle_sphere_hull(x,y,z,r,s){
module rounded_rectangle_sphere_hull(x,y,z,r,s,chamfered_angle) {
hull(){
cross_box(x,y,z,r);//this is to ensure the overall dimensions stay true to those requested even for low-poly cylinders
translate(v=[ x/2 -r , y/2 -r , z/2 -r ])sphere(r=r, $fn=4*s);
translate(v=[ x/2 -r , -(y/2 -r), z/2 -r ])sphere(r=r,$fn=4*s);
translate(v=[ -(x/2 -r), -(y/2 -r), z/2 -r ])sphere(r=r,$fn=4*s);
translate(v=[ -(x/2 -r), y/2 -r , z/2 -r ])sphere(r=r,$fn=4*s);
translate(v=[ x/2 -r , y/2 -r , -(z/2 -r)])sphere(r=r, $fn=4*s);
translate(v=[ x/2 -r , -(y/2 -r), -(z/2 -r)])sphere(r=r, $fn=4*s);
translate(v=[ -(x/2 -r), -(y/2 -r), -(z/2 -r)])sphere(r=r, $fn=4*s);
translate(v=[ -(x/2 -r), y/2 -r , -(z/2 -r)])sphere(r=r, $fn=4*s);
translate(v=[ x/2 -r , y/2 -r , z/2 -r ]) chamfered_sphere(r,s,chamfered_angle);
translate(v=[ x/2 -r , -(y/2 -r), z/2 -r ]) chamfered_sphere(r,s,chamfered_angle);
translate(v=[ -(x/2 -r), -(y/2 -r), z/2 -r ]) chamfered_sphere(r,s,chamfered_angle);
translate(v=[ -(x/2 -r), y/2 -r , z/2 -r ]) chamfered_sphere(r,s,chamfered_angle);
translate(v=[ x/2 -r , y/2 -r , -(z/2 -r)]) chamfered_sphere(r,s,chamfered_angle);
translate(v=[ x/2 -r , -(y/2 -r), -(z/2 -r)]) chamfered_sphere(r,s,chamfered_angle);
translate(v=[ -(x/2 -r), -(y/2 -r), -(z/2 -r)]) chamfered_sphere(r,s,chamfered_angle);
translate(v=[ -(x/2 -r), y/2 -r , -(z/2 -r)]) chamfered_sphere(r,s,chamfered_angle);
}
}

module chamfered_sphere(r,s,chamfered_angle) {
if (chamfered_angle > 0) {
chamfered = r * tan(chamfered_angle/2);
hull() {
sphere(r=r, $fn=4*s);
cylinder(r=chamfered, h=r*2, $fn=4*s, center=true);
}
} else {
sphere(r=r, $fn=4*s);
}
}

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