PLEASE NOTE!! I, RNinMunich (AKA Doug) DID NOT WRITE THIS EXCELLENT 'HOW TO' ON PHOTO ETCHING. THE REAL AUTHOR IS 'SPOCK66'.
I simply tried (and failed🤔) to help with the Links he had posted. Doug 😎

From Spock66:-
This is a PDF of how we do my photo etching in a very simplistic and basic way. With help (cos of my crip status!), We photoetch small parts and larger ones, depending on what's needed. We even help out friends (see bit in PDF where we made aircraft ribs).
Hope its helpful and sets more on the same course.
Andy

Search for this Link:
If you click on this one it won't work!
Just search for it!

https://model-boats.com/forum/77241

Look for this,
(Low volume or single piece photoetching)!

Hmm! Let's try this one😎
https://model-boats.com/forum/77241#78523

Hmm2! Links only work if you copy them into your browser address box, or Google them🤔