a chamada projection()
faz dele um objeto 2D. remova esta linha e o último }
use <arduino.scad>
beam_width = 7.9375; // 5/16 inches
projection(){ // <------ REMOVE THIS
difference(){
// Base plate
cube([8*9, beam_width * 9, 1]);
// Bottom row
for (x=[8 : 8 : beam_width * 10]) {
translate([x-4, beam_width/2, -10])
cylinder(r=2.4, h=20, $fn=25);
}
// Top row
for (x=[8 : 8 : beam_width * 10]) {
translate([x-4, (beam_width/2) + beam_width * 8, -10])
cylinder(r=2.4, h=20, $fn=25);
}
translate([17,60,0]) MountingHoles();
}
} // <----------- REMOVE THIS
// Uncomment next line if you want to see the entire board
//translate([17,60,2]) Arduino();