Hello from Cardiff!

[Jonathan]

So, my name is Jesse.
I'm going into college next year to do 3d design for two years.

Hmm, that implies you're about the same age as me...

I enjoy modding motorbikes and Pcs!

...so does that!

I'm going to be using linear bearings on 16mm steel rods ... If anyone knows any good places to get things like Leadscrews, Housed bearings etc, then that would be a great help. I've just been looking on ebay.

I hope that's supported 16mm rails, not just round bar. It depends how big the machine your building is and what you want to do with it, but in general supported will be better (less deflection & vibration) and not too expensive if you get it from linearmotionbearings2008 on eBay.

All put together on some extruded Alu. The budget of this is going to be as low as possible!

I think steel box section is the most economical material to use for the frame. Aluminium extrusion is strong, but expensive. Having said that if you're paying with biscuits that may not be a problem

I'll be CNCing Aluminium mainly so I was looking at a kress 800watt spindle.

Definately use supported rail then if you want to be able to machine it accurately at a decent feedrate.

I'm hopefully going to get a working machine! I've already purchased some linear bearings so they can't go to waist now!!

Looks like it might be too late... I should have read the whole post first.