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// No license, but send me a hello if you use this for some good purpose.
// -- Mirek Kratochvil <exa.exa@gmail.com>
font = "FiraMono:style=Bold";
//inch-sized tiles look imperial.
tilesize=25.4;
//you might like them a bit larger if you want to use this outdoors
//distance between tiles
off=tilesize*1.1;
tileheight=tilesize/10;
fontheight=tileheight*0.5;
corner=tileheight*2;
module arrow(n) {
if (n>=1)
for(i=[0:n-1]) translate([i-(n-1)/2,0,0])
polygon([[0.45,0],[0,0.7],[-0.45,0]]);
}
//this produces one tile
module tilec(letter, x, y, c) {
xx = ((10-x)%7)-3;
yy = ((y+3)%7)-3;
dx = sign(xx);
dy = sign(yy);
translate([x*off,(6-y)*off,0]) {
difference() {
color(c) union() {
cube([tilesize,tilesize-corner,tileheight]);
translate([corner, tilesize-corner,0])
cube([tilesize-2*corner, corner, tileheight]);
translate([corner, tilesize-corner, 0])
cylinder(tileheight, corner, corner);
translate([tilesize-corner, tilesize-corner, 0])
cylinder(tileheight, corner, corner);
};
color("white") {
translate([tilesize*(0.5-dx*0.1),tilesize*(0.3-dy*0.1),tileheight*.5])
linear_extrude (height=tileheight)
text(letter, font=font, size=tilesize*.48,
halign="center", valign="baseline");
}
color("white")
translate([tilesize*(0.5+dx*0.3), tilesize*0.5, tileheight*.5])
scale(4*[dx,1,1])
rotate([0,0,-90])
linear_extrude(height=tileheight/4)
arrow(abs(xx));
color("white")
translate([tilesize*0.5, tilesize*(0.5+dy*0.3), tileheight*.5])
scale(4*[1,dy,1])
linear_extrude(height=tileheight/4)
arrow(abs(yy));
}
}
}
//tiles
module tile(letter,x,y) {
tilec(letter,x,y,"darkgray");
}
module tiles(letters) {
for(i=[0,1,2,3,4,5,6]) for (j=[0,1,2,3,4,5,6]) {
tile(letters[i+7*j], i, j);
}
}
tiles(
["_", "A", "B", "C", "D", "E", "F",
"G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T",
"U", "V", "W", "X", "Y", "Z", ".",
",", ":", "?", "!", "'", "(", ")",
"0", "1", "2", "3", "4", "5", "6",
"7", "8", "9", "+", "-", "*", "/"]
);
//the token
translate([-off/2,off/2,0]) {
color("red") difference() {
cylinder(h=tileheight, d=tilesize);
translate([0,0,-.1])
cylinder(h=tileheight*1.2, d=tilesize-2*tileheight);
}
}
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