[quote=“bask185”]
Out of curiosity… I understand that a trapezoidal axis runs smoother, is faster, makes less noise so is better in every possible way. But still, during printing it barely moves at all so why buy a rather expensive trapezoidal axis if you don’t have to. I mean it is not that it gives you a better print and it also might be faster… but those few seconds on a 5 hour print… IMO it is not even remotely worth the money[/quote]
The reason for using a trapezoidal leadscrew for the Z axis is not speed.
It is simply way more precise and has less friction than a simple threaded rod.