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

Great sensor for Prusa machines. Highly recommend.

Works great with my Prusa MK3s

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

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.

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.

This also was not damaged work perfectly good

I purchased 3 kits and I MISTAKENLY thought the magnets were not included. They ARE included and just tucked in a slot cut in the foam. Changing review to 5 stars and will buy again.

i have a am8 frame like the bear frame for prusa i am part hunting to make my anet as much a prusa mk3s as possible and this works i did have some firmware issues that i had to work out on my own like the #define FIL_RUNOUT_STATE HIGH norm is low by default its like the true/false for like everything else that why it took me 2day to find it while working on other things hope this help someone else so they dont waste time not printing

The filament sensor works actually quite well, although there are some quirks in Marlin, that have to be fixed. They relate to the filament change. Logically you would use the unload feature to place a different color filament. If you do that in Marlin, youll be sorry. The firmware does not know how to continue and you may find the nozzle to continue half a mile above the object. However, if you use the extrude function, you may have better luck. Aside, the sensor does what it is supposed to do!

This is a complete kit. To the guy who stated that after ordering three kits, none of which had magnets, you should open up the sponge insert. The magnets are in there so that they dont interact with the steel screws and nuts. Ill update this review once I have the upgrade completed and tested.