Upon assembling my new MK3S Kit I noticed that the Autoload Function did not work and the IR-Sensor always showed 1. A quick search led me to this entry in the Prusa Forum: https://forum.prusaprinters.org/forum/original-prusa-i3-mk3s-mk3-assembly-and-first-prints-troubleshooting/filament-autoload-not-working/#post-169365. So I quickly sketched up a Spacer which did not work for me in the described height of 1 mm, this is now 0.5 mm which solves the problem with my printer.

MK3S IR-Sensor Spacer 0.5 mm

3D Printers / Prusa Parts & Upgrades

♥ 98⬇ 2.1k🖨 8 prints

Print profiles

ir-spacer.stlDEFAULT
⏱ time and weight estimated after preparation · 1 material(s)
Made to order: we prepare this file when you order, which adds a few minutes before printing starts.
Prints on: A1 mini 0.4PLA
Order this print