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Dispositivo para soldar plástico. Agujero de 4 mm para tubería de PTEF. Openscad: $fn=48; difference(){ minkowski(){ sphere(1); union(){ cube([80,40,2]); translate([7.5,9,17]){cube([28,22,5]);} translate([44.5,9,17]){cube([28,22,5]);} translate([7.5,10,2]){cube([20,20,35]);} translate([52.5,10,2]){cube([20,