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Tag: openscad

three-circle venn diagram coin

Published by Silveira on 2025-01-17 
$fn=100;

HEIGHT = 5;

CENTER_DISTANCE = 10;
OUTER_RADIUS = 40;
INNER_RADIUS = 30;

module inner_circle(position) {
  rotate([0,0,(360/3)*position])
    translate([CENTER_DISTANCE,0,0])
      cylinder(d=INNER_RADIUS, h=HEIGHT, center=true);
}

module logo() {
  difference() {
    cylinder(d=OUTER_RADIUS, h=HEIGHT-0.01, center=true);
    
    union() {
      intersection() {
        inner_circle(0);
        inner_circle(1);  
      }

    intersection() {
      inner_circle(1);
      inner_circle(2);  
    }

    intersection() {
      inner_circle(0);
      inner_circle(2);  
      }
    }
  }
  
  // piece in the middle
  intersection() {
    inner_circle(0);
    inner_circle(1);
    inner_circle(2);    
  }
}

logo();

half-hexagon in OpenSCAD

Published by Silveira on 2025-01-16 
height = 5;
radius = 20;

difference() {
  cylinder(height, radius, radius, $fn=6);
  translate([-radius, 0, -height/4]) {            
    cube([radius*2, radius, radius]);
  }
}

It works for these parameters but it needs more work to be really parametric. But hey, it’s my first OpenSCAD thing. I actually exported as .STL and printed it.