Hi!
First, sorry for my bad english.
I'm not an allegro expert, i use it rarely.
I'm using allegro PCB Editor 16.5. So far i used positive artwork files and pdf-s in my designs for positive pfotoresist technology.
Now i have to crate artworks or pdf files for negative photoresist etching.
Of course it is simple if i just convert from positive to negative, but thats a big black film if there is little net.How can i create a negative file if i want to print only the clearance on the copper pour? I don't know if i am understandable or not.
I placed a dynamic shape on my old designs, and on the screen it looks good, but thats still positive. If i change the layer to negative then the clearance disappear between the lines and the shape and everything is merge into the plane.
Is there a solution?