You could use your machine to make an etch tank. I etch copper, brass and stainless at home.
I built a UV box to expose resist film, but it can be done with the sun. Ferric chloride will do the etching and is not expensive.
If you have access to a laser printer, you can use blue resist sheets which is even easier than exposing resist.
A tank, an aquarium pump and heater is all you need.
