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iidx_pico/cad/iidx_keycap_main.scad
2023-04-22 14:18:54 +08:00

135 lines
3.3 KiB
OpenSCAD

t=10;
w=23;
h=40;
r=0.8;
solid=1.1;
zoff=-0.3;
gap_r = 0.18; // radius of round corner in cross
stem_l = 4.85; // socket stem length
stem_d = 5.6; // socket stem diameter
translate([0,0,0]) {
cap();
*stems(); // Choc V1, SLA
*stems(v1=false); // Choc V2, SLA
stems(v1=false,sla=false); // Choc V2, FDM
}
%union() {
mark([0,2.3,0],3.3,"purple");
mark([0,12,0],3.7,"orange");
mark([1,10,0],0.8,"cyan");
mark([0,0,0],6.6,"red");
}
module mark(offset=[0,0,0],h=5.5,c="red") {
translate(offset) {
color(c) hull() {
cylinder(d=0.1,h=h,$fn=32);
cylinder(d=1,h=0.1,$fn=64);
}
color("white") cylinder(d=0.1,h=h+5,$fn=64);
}
}
module stems(v1=true,sla=true) {
if (sla) {
// for SLA printing
translate([0,0,1.2]) {
stab_stem([0,12,0],stem_l,5.6,1.04,4.14,4.36,3.5);
stab_stem([0,-12,0],stem_l,5.6,1.04,4.14,4.36,3.5);
}
} else {
// for FDM printing
translate([0,0,1.2]) {
stab_stem([0,12,0],stem_l,5.7,1.1,4.2,4.4,3.5);
stab_stem([0,-12,0],stem_l,5.7,1.1,4.2,4.4,3.5);
}
}
if (v1) {
// choc v1
translate([0,0,1.4]) rotate([0,0,90]) color("cyan") {
choc_stem([0,2.85,0],4.5);
choc_stem([0,-2.85,0],4.5);
}
} else {
// choc v2
translate([0,0,1.8]) {
stab_stem([0,0,0],stem_l-1.8,5.48,1.31,4.02,4.02,5);
}
}
}
module cap() {
difference() {
body(w,h,r);
translate([0,0,-solid]) body(w-2*solid,h-2*solid,r);
}
}
module body(w,h,r) {
difference() {
translate([0,0,zoff-0.5]) minkowski() {
intersection() {
ww=w-2*r;
hh=h-2*r;
translate([-ww/2,-hh/2,0]) rcube(ww,hh,20,0.7,$fn=64);
translate([0,0,-5]) resize([50,39,26]) rotate([90,0,0]) cylinder(d=10,h=10,center=true,$fn=256);
}
sphere(r=r,$fn=48);
}
translate([-50,-50,-10]) cube([100,100,10]);
}
}
module rcube(x,y,z,r) {
hull() {
translate([r,r,0]) cylinder(r=r,h=z);
translate([x-r,r,0]) cylinder(r=r,h=z);
translate([r,y-r,0]) cylinder(r=r,h=z);
translate([x-r,y-r,0]) cylinder(r=r,h=z);
}
}
module choc_stem(offset=[0,0,0],h) {
translate([0,0,6.4+zoff-h]) translate(offset) {
translate([-1.5,-0.6,0.3]) cube([3,1.2,h-0.4]);
hull() {
translate([-1.5,-0.6,0.3]) cube([3,1.2,0.1]);
translate([-1.2,-0.5,0.0]) cube([2.4,1,0.1]);
}
hull() {
translate([-1.5,-0.6,h-1.2]) cube([3,1.2,0.1]);
translate([-2.5,-1.5,h-0.1]) cube([5,3,0.1]);
}
}
}
module stab_stem(offset=[0,0,0], length, d, gap_w, gap_h1, gap_h2,dig) {
translate([0,0,zoff]) translate(offset) difference() {
translate([0,0,5.2-length]) {
cylinder(d=d,h=length,$fn=64);
translate([0,0,length-0.01]) cylinder(d1=d,d2=8,h=1,$fn=64);
translate([0,0,-0.4]) cylinder(d1=d-0.7,d2=d,h=0.401,$fn=64);
}
translate([0,0,3.5-length]) difference() {
l=length+1;
union() {
translate([0,0,l/2]) color("green") cube([gap_h1,gap_w,dig], center=true);
translate([0,0,l/2]) color("red") cube([gap_w,gap_h2,dig], center=true);
translate([0,0,l/2]) cube([gap_w+gap_r*2,gap_w+gap_r*2,dig], center=true);
}
r = gap_w/2 + gap_r;
for (i=[-1,1]) {
for (j=[-1,1]) {
translate([i*r,j*r,-1]) cylinder(r=gap_r,h=6,$fn=24);
}
}
}
}
}