Quote Originally Posted by reefy86 View Post
would it be justifiable to use heavy extrusions for a more rigid strong frame? the price difference is huge but dont mind paying for it if its a plus side for the machine.

90x90 10mm slot light version
£122.85 18.9kg

90x90 10mm slot heavy version
£198.75 31.5kg

both 3000mm long
In one of your other posts did not you say you would be happy with a 4' x 4' machine!! or are you set on a 8 x 4?

bigger machines are generally much more difficult to build and thus more expensive.

Have a read through some of the very good build logs on here as that might help.