Z axis again 
Experimenting with a dual motor Z axis for the next iteration of my CoreXY, trying to get away from canitlever design.
Just an idea. If you swap leadscrew an guide rod position on one side, wouldn’t guide and lifting forces cross the center of the build plate?
@Daniel_Kruger Haven’t thought of that 
But my idea was to have the guide rods off center a bit to avoid tilting or wobbling.
I agree w Daniel but if tolerances are super tight it might not be a problem. One way to find out… Build & test 
@Brook_Drumm That prototype above works quite well I need some more printed parts (already printing), then we’ll see how it will perform in my printer
I’ve been thinking about a similar design using V-Slot as linear guide. Most prints are are positioned on the center of the build plate anyway and even if it tilts because of more weight on one side it should tilt less than on a cantilevered design, shouldn’t it (less lever arm)?
Yes, I think do. I’ve built a few of this design… 1-offs. The alignment has to be perfect so a z motor doesn’t jam and lag lower. After doing a few, I am thinking the two z acme rods should be linked to one motor. Laser cutters do this to good effect. Ultra low cost was the reason two z motors were introduced, but now, reliability and repeatability are more important.