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About this Product
a = 40
c = 0,833
d = 0,5
e = 0,65
f = 20
Many thanks to http://chaoticatmospheres.com and http://www.3d-meier.de/
Jurgen Meier provides a plugin for Cinema4D. I exported to an STL then repaired in netfabb.
I have printed this and it worked very well.