casting

I had printed myself a South Bend thread dial years ago. Last year a friend who has access to a NICE 3D printer made me one out of a composite plastic (nylon and carbon fiber I believe), and it works great. Well that same friend just decided to get into casting, and this was his first...

Finally complete. The casting came out very nice, little if any hydrogen bubbles or oxide inclusions. 11" diameter x 1" thick, 6 T slots, referencing rings 1/2" apart. See if I can get a photo to post.

I was told by an old and trusted member of the foundry industry to cast my fan blades in carbon fiber. He's built a Lancair and knows a bunch about carbon fiber and things aeronautical. I had planned on designing a mold for a 2-part polyurethane foam but might as well go with carbon fiber if...