// Points from e550.dat in the archive: http://m-selig.ae.illinois.edu/ads/archives/coord_seligFmt.tar.gz
// Not necessarily in the same order as in: http://m-selig.ae.illinois.edu/ads/coord/e550.dat

e550_points = [[1000,0],[996.35,0.96],[986.29,3.8],[970.79,7.77],[949.68,12.26],[922.93,17.48],[891.02,23.6],[854.5099,30.64],[814.02,38.54],[770.2301,47.2],[723.8599,56.43],[675.6099,66],[626.19,75.61],[576.3,84.93],[526.57,93.58],[477.59,101.19],[429.91,107.34],[383.98,111.48],[339.82,113.05],[297.17,112.03],[256.0799,108.77],[216.85,103.64],[179.89,96.91],[145.59,88.78],[114.28,79.46],[86.27,69.17],[61.84,58.13],[41.2,46.59],[24.55,34.86],[12.05,23.27],[3.86,12.25],[1.3,6.77],[0.45,3.89],[0.1299,2.0799],[0.01,0.36],[0.03,-0.45],[0.12,-1.22],[0.29,-1.95],[0.5599,-2.65],[0.93,-3.36],[1.38,-4.08],[2.49,-5.54],[3.87,-7.02],[6.39,-9.29],[11.28,-12.86],[25.72,-20.58],[45.23,-28.15],[69.51,-35.41],[98.26,-42.24],[131.1,-48.58],[167.6,-54.33],[207.26,-59.4],[249.57,-63.62],[294,-66.86],[340,-68.93],[387.01,-69.61],[434.43,-68.47],[482.18,-64.87],[530.73,-58.65],[580.44,-50.44],[631.12,-41.27],[682,-32.0301],[732.21,-23.2901],[780.81,-15.58],[826.8,-9.2],[869.17,-4.38],[906.95,-1.14],[939.22,0.64],[965.22,1.24],[984.34,0.99],[996.0501,0.35]];

linear_extrude(height=20)
scale([15, 15])
translate([0,0])
scale (0.001)
polygon(points=e550_points);