With the plaster backing done for the rubber positive I made yesterday, I removed the assembly from the rubber mold. Once the plaster backing on this master positive is soaped up well, I can make the plaster piece-mold of this for pressing the terracotta into, The piece mold will be made in at least 5 pieces, most likely about 8 pieces. It won’t happen very soon as I used up the very last bag of pottery plaster I had on hand and I’ll have to order more along with some other materials and I need some more clay, but I don’t want to order clay when it’s below freezing, so…
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Model from the James W. Scoville, Adler, Sullivan, Elmslie Chicago building
I’ve begun the process last night to take my design towards making it in hand-pressed kiln fired terracotta, that requires two additional mold making steps, the first of which is making a rubber positive master cast using the new rubber mold, the second step is making a plaster piece-mold taken off the rubber positive. Shown below is the rubber positive that was poured in last night- the remaining cavity not filled with that amber colored rubber will be filled with plaster to save on expensive rubber since only the face is the important portion of the design. The amount of rubber shown in the mold was 2 gallons total, and…