flat bottom airfoil 3d models

Jones suggests a hypothesis that humans, like monkeys, have inherited instinctive reactions to snakes, large cats, and birds of prey.[12] He cites a study which found that approximately 39 people in a hundred are afraid of snakes[13] and notes that...

http://www.thingiverse.com/apps/customizer/run?thing_id=296804 Instructions Using the following options: wall_thickness = 0 bottom_diameter = 200 border_offset = 0 border_height = 0 image =...

http://www.thingiverse.com/apps/customizer/run?thing_id=296804 Instructions Using the following options: border_height = 15 image =...