File:7 1 Knot.stl

Summary[edit]

source[edit]

//https://commons.wikimedia.org/wiki/File:Blue_7_1_Knot.png

r_tube = 0.05;
num_steps = 70;

function pointCord(theta) = [0.3*( (7/3)*sin(2*theta)*(1+(2/7)*cos(7*theta)) ), 0.3*( (7/3)*cos(2*theta)*(1+(2/7)*cos(7*theta)) ), 0.2*sin(7*theta)];

module point(N){
  theta = 360 * N / num_steps;
  translate(pointCord(theta))
  sphere(r_tube);
}



for(N=[0:1:num_steps]){
    //echo(N);
    hull(){
        point(N);
        point(N+1);
    }
}

Licensing[edit]

I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.