// empty cube to test ninjaflex inner/outer wall adhesion

nozzle_diameter = 0.5;
d = 30;
h = 20;
wall = nozzle_diameter*4;

difference () {
     cube ([d, d, h], center=true);
     // intentionally thin floor
     translate ([0, 0, wall/2]) #cube ([d-wall, d-wall, h+0.01], center=true);
}