Lee; thanks for the link. There is some interesting stuff on there.

Gary... Yes the 20mm was over kill, I was just messing around. Although I find it quite funny that you knew it was 20 just from the pic :D. 15 it is...

Do you mind me asking if Zaps linear rails are the same as Marchant Dice? There seems to be a fair price difference, but you seem to have bigger carriages, so I am assuming thats where the price difference comes from?

Do you think I could get away with using 2 carriages on the Y axis?

Looking to machine aluminium... Small (ish) parts, but quite deep probably... ie i'm not just making signs or engraving.