Here's props file back as a solid with .0001 meter G2 fillets at the hub connection and the blade tips... I also changed the hubs cone bottom to be a conic surface with an RHO value of .9999 (Since he likes the little numbers)

I have another file where I made the hub front a G2 blend also, and cut the blade section out to rotate seperatly to try and animate for fun..

I couldnt mesh it. Anything comming even relatively close was an issue for my system.