highly integrated BMG / E3D v6 extruder mount - ender3 auxiliary parts

Thanks to [babyjail](https://www.thingiverse.com/babyjail) we have this magnificent extruder mount for the E3D V6 + BMG.

These are the missing part for the Ender 3 assuming you already have a MGN12H linear rail:
1 x Extruder mount base
4 x Spacers
2 x belt guides (left and right - they are symmetric though)
1 x BLTouch adapter (X-30.5 Y-31.5 offsets)

I have printed all parts in PETG except the BLTouch adapter (Not sure why :) ) - Just to be safe, go with PETG or better.

**Note 1