For a medium like clay getting rigid angles and perfect curves is a nightmare.
Create ceramic mold.
Create a flat steady foot on the mold so that it will stand straight in the kiln even with glass loaded on top.
Focus on the inside of the mold as this is where the glass will drop and from a bowl.
How to make a ceramic mold from a 3 d printed object.
Molds make it possible to repeat patterns and forms for a variety of reasons.
Tips for making plaster bisque and styrofoam molds making and using casting slip and decorating ceramic surfaces learn to make ceramic molds in this free pdf.
Use it to remove sharp edges and fingermarks as well.
However 3 d printing and making a mold opens up a whole new world of possible shapes and forms this mold will be for a bowl i know it looks like a big hunk of plastic ri.
Similarly sprig molds available in plaster ceramic and wood allow one to press clay into the mold and to release a sprig or a decorative dimensional elements such as a flower leaf or animal which can then be used on its own or added to a pot.
Ceramic mold making techniques.