Marvering - one of the few glass related words that we don't get from the Italians. It comes from the French word for marble . The original marvers were made of marble and still would be the tool of choice (marble takes less heat away from your glass) but the cost and availability of steel wins out.
The marver is often overlooked as a great tool for shaping glass - it can help you do many things
A. get the glass under control - marver with your pipe held low to get the back and neck of the gather first.
B. shape or cool the sides - marver with the pipe level.
C. to get your cone/bullet shape - marver the tip by holding your pipe high. This is also a good way to take heat out of a properly shaped gather so you can blow out the shoulder of the piece (create a thin lip) without blowing out the bottom.
Quick “how to” on marvering:
1. After you gather, slowly come to the marver. You have time and plenty of heat so don’t rush. Be in control.
2. With your hands below the surface of the marver, place the blowpipe on the edge of the marver. Don’t forget to keep turning the pipe.
3. Gently lift up on the pipe while rolling until you are squeezing the glass off the blowpipe and toward the tip.
4. Keep lifting the pipe so that you marver the sides of the glass. Keep rolling that pipe. You want to keep the glass centered on the pipe.
5. Lift you hands up higher still and marver the tip of the glass. You will need to support the pipe with your left (or non-dominant) had to keep from squashing the glass. Don’t forget to keep turning the pipe.
6. Go to the glory hole and reheat.
At that point you can use the blocks, your paper, or the marver again, depending on your comfort level and what you intend to make.Just remember, the marvel is a great tool and with a little practice, you can use it to great advantage.