Rubics cube middle part Free 3D print model

Middle part of Rubics Cube, ready to print. Tested on my Cube, after it falls and broke a middle part. I designed part and fabricated it by inkjet 3D printing, then bonded by fotopolymer - it was soldified by UV radiation, however glue is also proper. There are two version: 1-st version have a cavity for pigment and resin (or any transparent substance) 2-nd version is a normal part without cavity Both version are on photos and printed part attached/fastened to the RubicCube