-cube([50,10,5], center=true);
-for (i=[0:2:10]) {
- sz = 4 + i/10;
- echo(sz);
- translate([(i-5)/2 * 7, 0, -7 ])
- cylinder(r= sz/2, h=14, $fn=10);
- }
+ union(){
+ cube([l,w,h], center=true);
+ if (label)
+ translate([-l/2, ly0, -h/2])
+ cube([l, lw, lt]);
+ }
+
+ for (i=[0:2:10]) {
+
+ sz = 3 + 0.5 * i/10;
+
+ echo(sz);
+ translate([(i-5)/2 * spc, 0, -7 ]) {
+ cylinder(r= sz/2, h=14);
+ linear_extrude(height=14, convexity=100) {
+ translate([0, ly0 + lw * .2])
+ text(halign="center",
+ size= lw * .6, font="DejaVu Sans:style=Bold",
+ chr(i + 65));
+ }
+ }
+ }