The flame does not touch the blowpipe wall but heats only the small area of rod being coiled. 782 25: The ... The Basic Bubble In lampwork, a part of the blowpipe itself, the first IV2 inches of the closed end, becomes part of the basic bubble. Because ... When the rod has been coiled all the way to the tip of the blowpipe, I sever it with the flame and pull it off. ... three minutes until it is blackened with carbon.
|Title||:||THE FAMILY CREATIVE WORKSHOP|