Lenovo DC power jack

This is a jack compatible with Lenovo's square (slim?) DC power supplies. It's similar to a Tyco 1-2129458-1, but doesn't have the middle sense pin. I wanted to reuse Lenovo DC power bricks for other projects and didn't want to cut off the existing plug. I measured the plug and tweaked it a bit for my 3D printer, so YMMV. I can't print metal, so I made the contacts from some scrap copper strips. After printing and inserting your metal contacts, glue the top half onto the bottom half.