IR-Sensor IR Filament Sensor with Steel Ball, Magnets, Screws Kit for 3D Printer Prusa i3 mk2.5/mk3 to mk2.5s/mk3s Upgrade

I followed the instructions to upgrade the mk3 to mk3s and the s requires a shorter ptfe tube which is not included.

I am building a Prusa i3 MK3S by self-sourcing (rather than buying prusas kits) just for the fun and experience of buying, and selectively upgrading as I go alone - however, the MK3S extruder has a specific type of sensor and magnetic spring setup that would be prohibitive to try and piece-meal if it wasnt for this kit. Its absolutely perfect, and on testing, does exactly what it should. Five star!

it was just as describe everything was in package and the instructions was very helpful .

After my old MK3 sensor literally burned up, I got this kit. I printed all the new parts and assembled everything without issue. I now have an MK3S! I hope the sensor is better than the old one. Time will tell.

It seems to be a good replacement for the original sensor that came in the printer. I installed it and fixed the false filament out errors.

This part worked great. Print your own parts, keep all the screws and this is an identical upgrade to the original.

WARNING: was not wired correctly. The white, signal wire was in the wrong location. Making the item useless until the wire was placed in the right location. Works great after fix was made.

I have an orginal one from prusa as well. This one works the same no problems so far. Used up all my left spool filament just to test. Working as intended.

This also was not damaged work perfectly good

This worked will on the Prusa MK2 to MK2.5S upgrade with the Rambo 13a board. There were slots on the board for the connectors. It is nice to have an autoload feature on the printer. Fit very well into the printed extruder housing and all the parts are in this kit for the upgrade.