Thanks for the input guys, I was thinking I would build a bench in the shed and simply sit it on that or bolt it down but now I'm thinking it needs a solid frame too.

Great build thread Eddycurrent, I'm a bit dyslexic so it takes me a while to read it all and take it all in. I've skipped over a lot of the electronics bit for now but finding the epoxy levelling really interesting.

Bear with me and I'll finish the reading and get some drawing done.

I was looking at Chinese rails and lead screws on ebay, are the Hiwin type worth the extra cash?

Thanks again for your assistance.