openScad TubeTest

thingiverse

module tubTest(fn){\r fn=fn;\r tube([1,1,0.5], odd=false, $fn=fn);\r color([0.8,0.2,0.3,0.4]) tube([1,1,0.1], odd=true, $fn=fn);\r color([0.4,0.2,0.3,0.4]) translate([0,0,1]) tube([1,1,0.1], odd="elip", $fn=fn);\r color([0.2,0.8,0.3,0.4]) translate([0,0,-1]) tube([1,1,0.1], odd="sqr", $fn=fn);\r } for(i=[3:1:20]){ translate([0,(i-4)*3,0]) tubTest(i); } odd is the polygon with a side length of 1\r odd=false is the polygon with a radius of 1\r odd="elip" is the polygon that fits within a circle of radius 1\r odd="sqr" is the polygon whose vertices wrap around a square bounding box with a side length of 1