Making a Ripple Cup
Molten glass is gathered from a 2300*F furnace on a steel pipe, then reheated while working in the "glory hole" (reheating chamber), shown left.
Controlling the shape and temperature of the glass is crucial to creating a desired form. Here, the "marver" (steel, bronze, or marble surface) is used to cool and shape the fresh gather.
Once relative heats are established, the bubble is inflated.
After reaching the main cup form by using heat, gravity, steel hand tools, and breath, a gather of fresh glass is served by my assistant…
…and applied to the cooler, therefore more stable, cup form.
A "rake" (steel pick) is used to manipulate the fresh gather while the pipe is capped to keep the original form from distortion.
Prior to adding a blown foot to this cup, an "avolio" (hourglass shaped, small bit of glass) is applied.
Then, my assistant prepares and drops a bubble…
…which I snip off onto the cup.
This new bubble must be opened by making a "jack line" (constriction or weak point made with blades of "jacks").
…then knocking off the tip.
The foot is then flared open and flattened.
Once the foot is open, the piece is nearly finished. My assistant brings a "punty" (preheated steel rod with a small bit of glass at the tip). We transfer the entire cup onto the punty from the pipe so that the cup can be opened.
A completed Ripple Cup… ideal for blender drinks with kooky straws.