Filament Sensor and Guide

This is a filament guide and sensor two-in-one. Made for my Sidewinder X1, but it will probably work as well on many others.

Project homepage:
https://hattedsquirrel.net/projects/filament-sensor-and-guide/

What you need:

1x micro switch (the big type: 6.5 x 19.5 x 9.5mm)
2x bearing 696ZZ
2x M3 screw 20mm + nut (for bearings)
1x M3 screw 25mm + nut (for base)
2x M2.5 screw 20mm + nut (for micro switch)
4x PTFE tubing, 4mm diameter, 43mm length

Printed parts:

2x spacer (watch for layer height, big part should be 0.5mm)
1x slider
1x side
1x side (mirrored)
1x bottom

How to build:

Step 1: Insert spacers into first bearing. Make sure the bigger part of the spacer is actually 0.5mm thick (depends on layer height while printing).
Step 2: Attach bearing with spacers to the slider.
Step 3: Inset PTFE tubing into the sides, place second bearing.
Step 4: Place the slicer
Step 5: Attach the second side and secure it wit