I printed the [lo-pro bottom based on the stl file](https://github.com/olkb/olkb_parts/blob/master/planck/lo-pro-bottom.stl). I noticed the [R6 PCB fits almost flush with the top of the lo-pro](https://photos.app.goo.gl/sJpRZHAPUhHH5aeYA) which means there will be a gap between the lo-pro bottom and the MX plate. Does that sound right? Am I missing a piece?