Z Axis is there a need for Ball Screw

[bob-hepple 59]

Attended the show in Birmingham TCT show where Ultimaker attended allot of interesting machines there and Dual Extruders, working. One machine cought my eye which used Ball Screws for the Z axis would this be a benefit for the UM2 I always thought it would have saved on cleaning the threads and greasing.

[Dim3nsioneer 557]

For sure a ball screw makes the maintenance life easier.

I had a ball screw on my UMO. In the meantime I replaced it with a HBK as my UM2 (ok, I have to admit: with an Olsson Block) prints even better with the standard screw.