QUBD OneUp Bed Bearing Bracket

** Updated **
> Now including an integrated mount for a typical mechanical endstop. Also includes a bracket to capture a screw for adjusting the endstop.
> Also includes mounting braces for the heated basalt bed. These also significantly stiffen and straighten the bed.

I was helping out a friend who has a QUBD OneUp with some assembly issues so I started tinkering.

One thing I noticed right away is that standard method for attaching the bed linear bearings was very prone to allowing the