I'm having the worst struggle with etches lately. I got 2 blades that showed up awesome, 3 blades that only show some lines but otherwise they are all silver, and this one that is spotty in the black area...
Not sure what i am doing wrong. They are all low layer done with a press, so minimal heating. No where near if I was cutting and stacking. Also minimal working, so I don't think it's migration from the 15n20, but I could definitely be wrong. I just don't know.
After things settle from the holidays and I get the shop in a bit more order I'm going to invite Walter Baranowski over to do some stuff with me and try and figure out what I'm doing wrong.
Here is the spotty one I just finished. Works very well, just not happy with the finish.