01-02-2011, 09:00 AM
Frater M. Demetrius I hope to be comprehensive with my answer to your question.From several ancient Roman bronze, copper vases and one helmet Coolus type D which I was fortunate to hold in my hands I form a conclusion that they were prepared by stretching the metal during the spinning process. The Romans knew the lathe-Metal Spinning in it simplified form.Scratches traces (remaining after such metal processing) are clearly visible on the surface. But this is my opinion on the matter.
So I decided it would be not wrong to use this method (Metal Spinning) for making Signum discs. Of course that first I made matrix model on which to be lead sheet brass 0,5 mm thickness.
And this is the final result:![[Image: d4e172c9e3bc.jpg]](http://s011.radikal.ru/i317/1102/d4/d4e172c9e3bc.jpg)
I think I got good (authentic) looks.
Discs are very light 0.8 grams.
Relatively low price considering that they are made of brass and there are many waste material during the production.
So I decided it would be not wrong to use this method (Metal Spinning) for making Signum discs. Of course that first I made matrix model on which to be lead sheet brass 0,5 mm thickness.
And this is the final result:
I think I got good (authentic) looks.
Discs are very light 0.8 grams.
Relatively low price considering that they are made of brass and there are many waste material during the production.
