//* ALL DIMENSION ARE IN MILLIMETERS*// include; module carbon_tube_square(carbon_square_side,tube_carbon_length ){ //translate([0.5*tube_carbon_length,0,0]){ rotate([90,0,0]){ color([0,0,0,0.5]){ cube([carbon_square_side,carbon_square_side,tube_carbon_length ],center=true); } } //} } carbon_tube_square(carbon_square_side,tube_carbon_length );