Harpo, the fact is, there are more complications with printing a shoe than just build size. It's a notoriously difficult thing to get working even for big printers due to the shifting load that they're supposed to support, and the kinds of stresses the material has to withstand to be a good shoe for more than a few days.

If I have to print her a new pair each month, then we're back to $500 worth of resin for what amounts to a single pair of shoes.

That said, I'm optimistic about the structural properties of the MakerJuice resins. With a bit of tweaking, I might come up with a (admittedly difficult) way to print multiple materials.