Whilst working on the Z-axis design for my project I suddenly thought would it be worth making provision for adding an ATC spindle at a later date? - some of the dimensions are a bit different. This begged the question are the cheaper ones any good?? Of course I would love a Giordano RC73, but that would quadruple the project price. I see on AliExpress they're available form $1500 or so upwards (I'd need 2...3KW), but most seem to have not a lot of feedback, so just wondering if anyone here has any recent practical experience please.