SFS V2.0 Pivot Mount

This is a mount for the BigTreeTech Smart Filament Sensor V2.0 to attach it to an aluminum extrusion. It uses a 608 bearing to pivot, reducing drag, lateral tension on the extruder, and possible rubbing against cables and other parts.

## Update 2023-10-23

Reworked some parts to improve chances of a successful print under adverse conditions. Added a rear support bracket in case the slot mount hole prints too loose.

## Update 2023-10-22

Fixed an issue where certain mounting positions would cause the SFS mount plate to pop out of the slot mount after extended use.

# Assembly

## Required materials:

* The hardware supplied with the BTT SFS V2.0
* At least 2 M3x5 screws
* The same number of T-nuts
* One 608 bearing

## Steps:

1. Attach the "SFS Mount" plate to the BTT SFS using the screws from the hardware kit.
2. Insert the bearing into the "Slot Mount" plate from the back side.*
3. Line up the pegs on the SFS mount plate with the middle of the bearing, and pr