I want to DIY.. some questions please!

[Tenson]

I've just had a quick look and actually steel box section is more pricey than the alu profile, though not including connectors. I was going to buy from this place http://www.valuframe.co.uk/Valuframe...t 27-02-12.pdf

Even more interesting, it is cheaper to cover the entire bed with 30x30mm profile than 16x160mm.

P.S. Would a mod please move this to the DIY section ;)

[JAZZCNC]

I've just had a quick look and actually steel box section is more pricey than the alu profile,

Rubbish it's no where near the price of profile and I'm not guessing at this as I buy steel all the time. I pay Approx £25 for 50x50x7.5mtr lengths of 3mm box section. Just payed £34 for 80x40x7.5mtr. See your local steel merchant and they may well even cut it for you for a small few.

Water jetting leaves a edge slightly angled so it's no good for pieces that need 90deg joining to others like bearing blocks to gantry sides or the Z axis etc.