FIG. 1 is a top, right side and front perspective view of a base for a medical machine, showing our new design;

FIG. 2 is a top, left side and rear perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is right side elevation view thereof;

FIG. 5 is a left side elevation view thereof; and,

FIG. 6 is a top plan view thereof.

The broken line showing is for illustrative purposes only and forms no part of the claimed design.