Upgrade for a little CNC

This object is an upgrade for my little CNC.
This CNC has the spindle motor connected to the machine by a 3d printed vise;
this vise is very breakable because the screw applies its strength not uniformly, so I've projected a support that distributes more uniformly the load.
After the print I have used some "flexible" glue only on the left side of the object (see photo).