Dan, yes, the (.STL) files sent to the 3D printer had scaled up measurements by, if I remember correctly, 2.5 %. Still, the parts turned out a bit on the small side.
Glenn, in a few years I'll probably still be building on this model
![Embarrassment](images/smilies/redface.gif)
Neil, thanks for the links, they'll help me, too. Would you be able to say whether the described shrinkage cavities problem is normal by this size/shape of parts using lost wax casting? Material was brass CuZn34Al2. I've been considering going to another foundry for some other, still bigger parts.
Stefan