My Customized Parametric Golden Spiral Fan Duct v0.1

thingiverse

Customized version of http://www.thingiverse.com/thing:236144 Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=236144 Instructions Using the following options: screw_diameter = 2.8mm screw diameter wall_thickness = 1.5mm wall thickness corner_radius = 6mm corner radius duct_height = 30mm duct height ball_inset = 0.8mm ball inset layer_height = 0.5mm layer height scale_factor = 10 scale factor direction = -1 direction screw_distance = 32 screw distance fan_diameter = 38 fan diameter perimeter_extrusion_width = 0.5 perimeter extrusion width ball_radius = 5 ball radius $fn = 24 phi = 0.618034 mount_height = 8 mount height fins = 5 number of fins mount_side = 40 mount side