one of our members has the tronxy x5sa - one of his boards has just burnt out - so maybe wait till he hears back from tronxy :-)

Also looking at that link - don't look like proper linear rails.

A smaller but probably better made beast is the two trees sapphire plus.
Essentially the upgraded version of what I have.

I like the fact that my rails are bolted to a 6mm sheet of solid aluminium/ Not only does that make the frame really stable , but keeps the rails totally flat too.

And as you always say: 'the most important part is the frame - everything else is tacked on to it'
Or something like that :-)

back to the really big beast - that is a lot of plastic. The cooling is going to be the most critical part.
Probably why it sounds like a jet engine :-)
You'd need some kind of ducted turbo fan to cool that mass of molten plastic fast enough to maintain it's shape.

It sure as hell isn't going to be printing an iris box anytime soon lol
It'd be big enough to use as an igloo !