This is for my 1:20 scale Kauila project. These are the connecting rods. I have printed these out in stainless steel. You will need to use a cutting wheel to separate these from each other. The holes can be drilled at the desired distances up using carbide drill bits and 3 in 1 oil.
I recommend if you are purchasing these, that you also get the main crank rods offered at
https://www.shapeways.com/shops/scalehumans?section=1%3A20.32+Kauila&s=0
These will not fit in to the crossheads correctly, but the main crank rods will.