a0 = [[0,0],[77,0],[77,77],[0,77]];
b0 = [1,0,3,2];
a1 = [[22,22],[70,22],[77,77],[22,77]];
b1 = [4,5,6,7];
a = concat (a0,a1);
b = [b0,b1];
translate([0,-77,0])linear_extrude(height = 3)polygon (a,b);
//..................
a0 = [[0,0],[77,0],[77,77],[0,77]];
b0 = [1,0,3,2];
a1 = [[22,22],[77,22],[77,70],[22,77]];
b1 = [4,5,6,7];
a = concat (a0,a1);
b = [b0,b1];
translate([77,0,0])rotate([90,-90,0])linear_extrude(height = 3)polygon (a,b);
//..................
a0 = [[0,0],[77,0],[77,77],[0,77]];
b0 = [1,0,3,2];
a1 = [[22,22],[77,22],[77,77],[22,77]];
b1 = [4,5,6,7];
a = concat (a0,a1);
b = [b0,b1];
translate([0,0,77])rotate([-90,0,-90])linear_extrude(height = 3)polygon (a,b);
//Luis Rodriguez - November 2015 - habitainer@gmail.com
//This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
CC AttributionCreative Commons Attribution
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