Ikea Lack standalone 6 inch leg extension

Yet another remix of the Lack leg extension. This time, it is a 6 inch [152.4 mm] lift, plus a 1 inch pocket for the bottom of the leg. Two screw holes for optional use for the same reason as the design I remixed from. Total height is 7 inches [177.8 mm], designed to be printable on a prusa mini+.

This gave me enough height to slide a workstation + fan array underneath. I dropped 4 copies in the slicer when it came time to print, because, well, you can't have just one.