The file 'Lilly Impeller, Free After Jay Harmans Drawings 3D Printer Model' is (stl,obj) file type, size is 35.4MB.
i realy liked the shape of that patent.. so i tried to model something similar with no real purpose. just as a modeling challenge...
heres the patent link:
http://www.rexresearch.com/harmanprop/harmanprop.htm
Lilly_impeller1.stl | 22.1MB | |
Lilly_impeller1_small_hole.stl | 21.2MB | |
Lilly_impeller2.obj | 38.3MB | |
Lilly_impeller_lowres.obj | 20.1MB |