Hole-style Prusa MK3 Heatbed Mount (for camera)

(get the rest parts from [Raspberry Camera Prusa Mk3 v.4 by Bogdanko](https://www.thingiverse.com/thing:2854575))

Usually, I see two mounting options:

1. The one that slides over (and occasionally has a zip tie) like the original one.
2. The one that screws in instead of the metal spacer at the corner.

This design is like the original one (slides over, but you also unscrew the spacer and insert it in the mount's hole. Then you screw in the spacer after sliding in the mount. This wa