hello Doctor,
I hava an error message on an Ultimaker 2 saying : "z endstop stuck or broken" and that i shhould contact ultimaker support.
i started having problems last week, 3 prints in a row skiped a layer and ended up like a ball of hairs.
also started to make weird bang noises where i couldnd define where it came from, the bed falling down a few layers in middle of a print made me think of the Zaxis, i could hear like sand noise in the 2 big bars on z, so i opened from Under and cleaned them, also the two big ballbearing z.
i wiggled the bed to rebuild it the right way, hoping it would work.
That's when i got the error message "endstop stuck/broke" and it makes terrible noises.
I tested the endstop throught a circuit with a led, and the led goes on and off no problem.
could it be the board ?
I have a few clients waiting for their orders, please help me quickly.