Thibaud Taudin-Chabot queried: >your question generates an other question for you: >Do you have a complete step by step instruction how to etch a copperplate >with a sundial pattern? >What materials do we have to buy and how should we use them? > >Long time ago I etched sometimes a printed circuit, but I guess that is >quite different. >I have the impression there will be more people on the list who would like >to give it a try.
The process is almost exactly the same as for making printed circuits by photo-etching. In fact that is how I began myself when teaching elementary electronics with printed circuits enabling students to avoid wiring blunders. To describe the entire process of preparing Kodalith negatives/positives, for sundials, coating and exposing plates and the several approaches to etching would require a book rather than an email or, better still a video or CD ROM with movies. Trouble is there would probably only be a handful of purchasers worldwide but I'll give it some thought. As for materials I used electronic hobby products for years from e.g. Laskys and RS Components but companies such as C.I.B.S. Photoetching supplies Networks 2000 3 Kirby Close Corby Northants NN18 9AE [EMAIL PROTECTED] offer more 'commercial' products but in larger quantities. Tony M. -
