The ornamental design for a foodprocessorbase, as shown and described.
FIG. 1 is a top, front and right side perspective view of a food processor base showing the new design;
FIG. 2 a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is an perspective view thereof.
Broken lines illustrate environmental structure. The broken lines in the drawings are included for illustrative purposes only and form no part of the claimed design.