This Spring I have been busy teaching at and creating curriculum for the Fab Academy. You can check out the tutorials here: http://www.as220.org/fabacademy/tutorials
Fab Academy AS220 – Providence, RI
I re-milled my tools relief mold, correcting the problems inherent in the design of the first cast. I made the border around the tools relief wider and deeper in order to have a rim to hold the poured material before creating the final cast. In order to conserve wax (it is $29.00 a bar), I melted down used wax and shavings from previous molds. There was some sediment / impurities that worked their way into the wax, but they sunk to the bottom and did not affect the mold.