Hi

I have reduced the length of the macheen to give me just under 2000mm cutting in X. I have really took a lot in that has been discussed on here,

SO to try and build a machine to be ALL THINGS to ALL MATERAILS with advanced features like 4th & 5th axis etc is a BIG BIG BIG under taking that would make even the most experienced DIY builder like Jonathan or Me sit down and think very very very carefully.? . . . . . To take a project like this on with NO experience is a recipey for wasting money and time .!
.

Its not beyond my current skill set, althoug i have not built a CNC router before, i have had experience in pulling some quite complex tasks together, and i live in an area, full of engineering works, anything beyond of my level of accuracy, can be done by them. I do understand that it will cost a lot, perhaps around the 5k mark, without software. and i have a few month to do it, with the funds currently sat in the bank,

I will try hard to put it in sketchup tonight

Now I'm going to honest and blunt here George.!!
, your not blunt, your straight to the point, and sharing your considerable experience.

I think you are going to waste an awful lot of time and money plus dissapointed with results because what your wanting to have is Large machine that is all things to all materials but haven't got a clue to just how hard that is to achive or make happen.
I do understand the difficulty involved, and the design complexitys, am not expecting to get thinks perfect first time, and i have budgeted some funds for mistakes.

it would be a rotating nut and up high out the way along with the rails. This is where all my design efforts would be concentrated and even if it cost extra money to put up high and under cover
agreed, my x-rails and screw, are the top of the frame/x Box, The Y/Z is underneath that. I would cover X with accordian or brushes for dust.