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

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.

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.

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.

Was able to hook this up to my Duet board with ease. Works as it should, and fit an MK3S hotend.

Works great with my Prusa MK3s

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

Great sensor for Prusa machines. Highly recommend.

Like the title. first it was intermittent. Then it didnt work and i powered it with a bench top power supply and it was dead. Amazon though, full refund, cant complain. Just going to pay double and get the prusa made one. Too bad, most others seem to have had really good results. Excited to a get a run out sensor working soon!

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!

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.