0
$\begingroup$

I have an Anet A8 with Marlin Firmware 1.1.9 and I installed a BLTouch sensor. When I start the system the BLTouch does its self test (extend and retract the probe twice) and then lights up red. When I "Auto Home", it homes X, then Y and then extends and retracts the probe and moves up a few millimeters. Then with the probe retracted it moves down until the nozzle crashes into the table. The same happens when I select "Level bed".

Safe Homing is active.

What am I doing wrong?

My current Configuration.h can be found here.

Improve this question
$\endgroup$

1 Answer 1

Reset to default
1
$\begingroup$

You must invert the logic of the endstop Z_min.

define Z_MIN_ENDSTOP_INVERTING true

To

define Z_MIN_ENDSTOP_INVERTING False

Improve this answer
$\endgroup$
2
  • $\begingroup$ @lukaspanic If your table is colliding with the nozzle, you must invert the Z motor cables $\endgroup$
    – 3D TECH BRASIL
    Commented Feb 3, 2019 at 5:22
  • $\begingroup$ Nope, that didn't change anything. It's still doing the exact same thing. If the BLTouch would be extended it would probably be fine but it doesn't seem to know it's supposed to do anything. $\endgroup$
    – lukaspanic
    Commented Feb 3, 2019 at 23:45

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .