Tell us about yourself!
Reminds me of Stratego, a similar game.
Cosmos Mariner: a Large Aperture Dobsonian Telescope
The older models like I have, were equipped with a Dremel wrench that had one end shaved and it acted as your screw driver.
Lets say someone will be building this kit, how would they add a digital display to the kit? Thanks William Spokane WA
LEDs and Lighting Class
The use of a brayer is a good idea, when you might think of using is a hand roller on a flat surface like a thick plate of glass to uniformly spread the photosensitive paint. The glass and roller can both be easily cleaned. Another idea is using a photosensitive spray.
I have seen etching time reduced by reducing the hydrogen peroxide in order to reach 30% strength. I enjoyed your results/methods which so far are the top methods but have never seen the salt being added.