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The boat fold branch of T-folds is an interesting avenue. It permits you to have a curving, concave table, and to produce shaped tables as well as other complex derivations. The basic boat is begun by making a wedge T-fold. After the first angle is made the loop is tipped inthe other direction and pinched again to produce the boat pillow form.... (2005) Complete Story
The use of 'Plexiglas L's' is an extremely effective small scale lighting system. You take white, translucent Plexiglas, and you make squares approximately two feet (60 cm) on each side. Then you make two L - shaped constructions by gluing the edges together.... (1996) Complete Story
Jewelers work with compressed gases of all kinds, in torch systems, kilns, casting machines, abrasive blasters, laser welding machines needing argon and more. Many of these gases are flammable and an explosion hazard, acetylene, propane and hydrogen are examples. Oxygen is often used with these gases. Oxygen is a potent fire risk if it comes in contact with oils, greases or flammable materials, even fingerprint grease left in a fitting has caused a fire before.... (1999) Complete Story
This slim paperback book is a real addition to the book collections of the working jeweler, the jewelry shop owner, the gemologist and interestingly also to your customer, the general public. Wow! It is a compilation of straightforward information on how to take care of gems and jewelry and covers most of the stones in general trade use. At 32 pages it is modest indeed (as too is the price: $ 9.95) but every page is well laid out, visually interesting, concise, accurate, easy to read and find information and best of all has lovely rich color photographs.... (1996) Complete Story
This short paper discusses some of the things to think about when considering obtaining a microscope to use for gemology. There is some emphasis on inexpensive options. In putting together my own modest gemmology lab I did a lot of comparison shopping and adapting of various equipment to keep my costs down....
(1996) Complete Story
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