I did not expect this to work at all the first time around. I actually chose one of my less presentable plates, anticipating no result!
The subject is a small domestic housecat skull I bought on eBay some time ago.
This is very exciting. Can't wait to experiment further. But I really need to get a few hours sleep in before workProcess:
105 second 532nm exposure at ???mW (I really need some way of measuring laser power output!)
15 sec - fixing with 60w LED bulb
15 sec - water bath
15 sec - 35% IPA wash
15 sec - 70% IPA wash
99% IPA wash, until diffraction visible + 15 seconds (~2min)
Then dried on a small but hot heater.