metal spinning - very difficult!
I have just recently become interested in metal spinning and have found the process very frustrating. I purchased the conversion kit to convert a small (Jet 10") woodworking lathe to a metal spinning one. I also ordered the Terry Tynan DVD for small lathes. Of course he makes it look so easy. As you can see from the photo my attempts are laughable. The disc on the left was not annealed, but the other was, with somewhat better results. In the process of spinning I also re-annealed with no improvement. The mandrel is shaped to resemble an old truck headlight. The brass used is about 22g and comes from K&S. The edges of the blanks always waffle (is there a correct term for this condition?). I understand one reason for this is applying too much pressure at the edge. I can't seem to get the edges to bend toward the mandrel. The discs would turn out great if I were trying to spin a sombrero! Questions are: is lathe speed important, is the metal too thin,etc.. Any advice would be extremely gratefully received.
Arlen
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