Originally Posted by
LeeWay
This is looking good.
I did build my first router with a center screw, but you have to build in adjustments to put pressure on the X bearings in order to eliminate racking. That and spreading the bearings as far apart as possible with help.
That said, I would not do a central screw design again. Putting a screw on each side of this design will considerably reduce gantry weight and double the strength to move the gantry. It does add cost, but I think the benefit is there to make that worthwhile.