Its a 300mm laser cut dome from Daren Murrer
The dome consists of an inner complete dome and an outer with the details. I have started cutting the detail pieces out and cleaning the slag left behind in the laser cutting process.
Here is the outer dome with the lower panels cut out...

This is the little saw I'm using to cut the panels out and then I use a small file and emery board to get rid of the slag

This is the size of the dome sitting on the frame
