Yet another Lack table leg extender/joiner

thingiverse

The insertion portion model measures 45.20mm square, accounting for the internal dimensions of an actual leg and allowing for up to .13mm clearance due to PLA shrinkage of .3%. After printing, carefully clean up both top and bottom edges, possibly chamfering them slightly as the fit is intentionally tight to prevent the need for glue during assembly. With some firm rapping on a solid surface once the pieces start coming together, you should be able to assemble the parts without difficulty. If necessary, scaling down the print and using glue can help, but I preferred the full-scale method to maintain leg straightness. The design's primary application is to join two cut leg ends when using 2 lack tables to create a taller internal area. I reworked the design to incorporate cross and corner bracing for increased strength, and the outer corners are slightly fluted to distribute pressure on the wood more evenly. The center divider adds 4mm to the overall assembled leg height, making it a single piece print. Transparency and color were used during design to ensure a seamless mesh between elements, and the overhanging center section is minor enough not to require supports. Sliced in Cura with settings of PLA Medium - 1.2mm wall/top/bottom thickness, 10% fill, 3mm outer brim, and no supports.