Commodore Business Machines Logo - Chris Yaneff, 1965

readme.md

dimensions from https://twitter.com/vccmalta/status/1066231884911468544

CBM_Logo-Chris_Yaneff-1965.scad

// Commodore Business Machines Logo by Chris Yaneff (1965)
// scruss - 2018
// from https://twitter.com/vccmalta/status/1066231884911468544

a=100; // 10 cm
b=0.034*a;
c=0.166*a;
d=0.30*a;
e=0.364*a;
f=0.52*a;
g=0.53*a; // central hole is slightly elliptical
h=a-e;
i=b+2*(d+c);
$fn=64;

union() {
    difference() {
        translate([i/2,i/2])difference() {
            circle(d=i,center=true);
            scale([g/f,f/f])circle(d=f,center=true);
        }
        translate([h,0])square(a);
    }
    polygon([
        [h, i-d-c],
        [h, i-d],
        [a, i-d],
        [a-c, i-d-c]
    ]);
    polygon([
        [h, d],
        [h, d+c],
        [a-c, d+c],
        [a, d]
    ]);
}

CBM_Logo-Chris_Yaneff-1965.svg

<svg xmlns="http://www.w3.org/2000/svg" width="110mm" height="110mm" viewBox="0 0 110 110">
  <!--
      Commodore Business Machines Logo
      Chris Yaneff, 1965
      drawn by scruss (2018) from dimensions give here:
      https://twitter.com/vccmalta/status/1066231884911468544
    -->
  <path d="M88.395 56.708h-19.8v16.6h36.4zm16.6-20h-36.4v16.6h19.8zm-36.4 39.498c-8.77 6.315-21.406 6.366-30.291.241-8.169-5.352-12.798-15.59-11.222-25.254 1.38-9.848 8.991-18.352 18.52-21.065 7.699-2.323 16.43-.995 22.993 3.682V9.245c-17.867-6.33-39.112-.556-51.483 13.768-12.122 13.415-15.54 33.85-8.44 50.479 6.738 16.777 23.604 28.812 41.661 29.725 6.165.366 12.429-.4 18.262-2.447z" fill="none" stroke="#00f" stroke-width=".5" stroke-linecap="square"/>
</svg>