circle to ellipse

thingiverse

circle to ellipse Delta=0.01; module connector (height,radius,eccentricity) translate([0,0,0]) { hull() { linear_extrude(height=Delta) circle(r=radius); translate([0,30,height - Delta]) linear_extrude(height=Delta) scale([1,eccentricity]) circle(r=radius); } } module tube(height, radius, eccentricity=1, thickness) { difference() { minkowski() { connector(height,radius,eccentricity); cylinder(height=height,r=thickness); } translate([0,0,-(Delta+thickness)]) connector(height + 2* (Delta +thickness) ,radius, eccentricity); } } tube(60,48.5,0.5,1); tube2(60, 50, 1, center = false); module tube2(height, radius, wall, center = false) translate([0,0,-59]) { difference() { cylinder(h=height, r=radius, center=center); cylinder(h=height, r=radius-wall, center=center); } }