Printrbot y-bar ends with flower nuts Free 3D print model

After two years my printer started making squeaking noises and wrecking prints.
It turned out the bed sometimes bowed and hit the Y motor shaft.

I'm replacing the Y-bar ends with the longer version to lift the bed.

In the process I thought I'd try out the flower nuts I bought from DX.

Search - Brass Flower Screw Nut - other places have them too.
Full title -
Jtron M3 Brass Flower Screw Nut / Die Cast Screw Nut / Mosaic Screw Nut.