Mike,
You should have no problem turning hard Aluminium Alloys, Engineering Plastics, and 'Engraving' Brass.
Check some of the articles published by Don Unwin Rex Tingey.
MichaelG.
.
Edit: Oops … Brain-Fade
Edit: Sorry … Just realised it's a Unimat 1, not an SL 
Probably best used as a Cake Decoration.
Edited By Michael Gilligan on 03/10/2015 14:51:45
Edited By Michael Gilligan on 03/10/2015 15:19:00