Re: Mechanical quality / accuracy of Chinese routers?
As an owner of several Chinese machines, I can say they all have exceeded my expectations on build quality.
My 6090, not the table version, is a huge brute that just keeps on plugging away beautifully, and is possibly the best investment I have ever made. I did research models and suppliers for some time beforehand though as the variants for sale can be quite different. For example one that has regularly received well due criticism is the Keiling CNC version, which is almost the same as all the other 6090's, but has extremely thin gantry arms, which of course immediately translates to a large amount of flex when machining.
Some 6090's also have round rails, the linear Hiwin style rails are much superior though, and worth every extra cent.
I had some reservations about the control software, NCStudio, but have since come to really appreciate the simplicity and absolute reliability of it.
I did add a thick spoilboard and machined it flat so everything is then level.
In short, do your homework on the features of the model your looking at, and check it's value compared to other models available.
cheers, Ian
It's rumoured that everytime someone buys a TB6560 based board, an engineer cries!