Hello and here I go

[bobhome]

So nothing positive about my design then....perhaps my sketchup drawing was nicely coloured

Seriously though,

C Channel was chosen over Box section because I thought it would be easier and probably better for fixing and it would also provide room for adjustment later when getting everything aligned.
Cost wise, never really compared the C to Box. But, looking at Box it's double the cost of C - web prices of course. C was chosen purely because I thought it would work better.

So what you're saying is that 2900mm fully supported rails and ballscrews will work out cheaper in the long run.

Would I need 2 rails for each side?

So is it safe to assume that parts would be:
4no 2900mm fully supported rails for the long axis
1no Ballscrew 2900mm long
What do you think a rough cost of these items imported from china would be including any import duties?

I have welding experience and equipment so a metal base doesn't worry me. Just thought there was no advantage of using metal over wood for the base.

Please bear in mind, that this is a build for home not commercial use. The reason I'm building this is to learn about the processes of making a machine and to have some fun along the way. Of course, I'm going to fall over on some things but this is part of the learning process.

Thanks for taking the time to reply.