Newbie design need advise

[EddyCurrent]

This new design is much better that the first one and it's an excellent first draft.
I'm sure there's more, but two things stand out for me straight away.

1. You need some diagonal bracing between the legs on the base. i.e. on all 4 sides and the bottom.
2. The working position of the spindle looks like it is at the bottom end of the Z axis which means there will be high leverage leading to felexing leading to low accuracy.
Obviously that design gives a good range for Z travel but you should be ready to bring the workpiece closer to the gantry by using an adjustable height bed or as I do a series of sacrificial plywood beds laid on top of each other and skimmed flat before starting work.