Hi All,

First excuse me for my bad English.

I almost completed the design of my cnc router with moving gantry (x:1260mm, y:620mm, z:220mm).
Everything without the base frame was purchased a long time ago:
- 3kw ER20 water cooling permanent power spindle motor for metal work 110mm (RTM110-24Z-3.0)
- 25mm original HIWIN linear rails and HGH25CA carriages
- SFU2005 ballscrew for all axis with separate double nuts (4 pieces).
- 3 Phase 220V Nema34 3A 7Nm LC86H3114 Closed loop Servo Stepper motor Driver kit (4 pieces)
- heavy aluminum extrusion for Y-axis (ITEM 200x100mm)....
etc.


...But now I decided to fundamentally change the concept and move to fixed gantry style.
I'll probably will build an EP base stand (my 200x100 extrusion will remain unused..)


Almost all designs use one ballscrew for moving table. But I still have one left unused ballscrew+motor+controller for X-axis.
What do you think about moving table with two ballscrew ?
My moving table is about 1000x600x25mm (it is heavy). I will also add reinforcing beams below. Also ... + heavy vise and heavy detail.
So my question is: Will the second ballscrew help (higher speed, less motor load) or is it pointless to add one ?