I casted cardboard ring in wax, however they didn’t come out that well. To make sure hot wax can flew into the silicone mold. I must make sure the original objects are at least 3mm thick. Although the digital ring file is 3mm thick when they printed out in PLA their sizes shrinked. Next time, I will draw the object as 5mm thick.
Molds were heated up for wax to flow inside. Comparing to Bronze casting, producing wax casts is a lot quicker. After hot wax poured into mold it was quite hard to get it out. If the original object is thicker, it should be easier. Wax wasn’t working for this mold, so I tried pewter, which reaches higher temperature than wax. There were two jewellery came out nicely in pewter. Holes were cut in the middle of the mode for pewter liquid flew better. Because I wasn’t fully understood mold’s structure. Some holes were made in the wrong place. Next time I will cut them in different position from the main one.