How do you avoid getting lines from edges into design when etching metals… see example at this link…
https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&ved=0ahUKEwiOqLiEjM3VAhUUHmMKHXLsCV8QjRwIBw&url=http%3A%2F%2Fwww.rings-things.com%2FLearn%2FEtching%2F&psig=AFQjCNEkWVCTeUTqimSeLzWGclzsUoOUaQ&ust=1502469140790292
Not a judgement on this image, as sometimes I would want them as part of the image, but other times would like to not have them… I read it somewhere on what causes this, but can’t for the life of me find that info again…