Bear MMU2S sensor

thingiverse

Some modifications I made to make the MMU2S run right on my machine. Been running well for over 6 months now on 2 machines. Gives plenty of room for an LED on the sensor, and directs the light down so it's less annoying than with a hole in the front. Of course you could always just drill a hole in the cap if you want to see more LED light. Chimney is adjustable to fine tune the sensor. You can also file a little off of the arm if you find you can't adjust it enough.