Lighting Gobo(s)

[mad_macs]

Perhaps acid etching or electroetchjng thin aluminum or brass.

Acid cutting sheet metal

I’ve been thinking about cutting metals recently, stainless, aluminum etc. It’s long been established that it’s not possible to cut metal with a 45w laser cutter, but I’m not one to turn down a challenge! I’ve etched PCBs in the past and, while it’s not possible to etch the copper surface with a laser cutter, it’s possible to use a laser to selectively remove a resist coating and then etch the exposed metal away with an acid. It got me to thinking, would the same be possible …

I’m firing up my electroetching stuff today to print some Makers Mark tags.