search

MNieddu91 / Marlin-AI3M-BLTouch

Marlin firmware optimized for the Anycubic i3 Mega 3D printer
GNU General Public License v3.0
94 stars 28 forks source link

[BUG] Printer doesn't detect BLTouch trigger #11

Closed mLupine closed 5 years ago

mLupine commented 5 years ago

At this point, I'm basically out of ideas on what could be causing my issues. I've installed a BLTouch clone (3D Touch) on my Anycubic i3 Mega, and as far as pushing the pin up and down, the probe works fine. However, it doesn't seem to react to triggering the pin when it needs to. I first tried the procedure from the Wiki, but pushing the pin while G29 was in progress did not result in the carriage moving to the next point – it tried to go further down. I then tried a M119 command which, correctly, returned the "open" state. After disconnecting the probe, M119 returns "triggered" which also seems to be correct. However, the result of the "M43 S" test that I did clearly tells that the printer does not receive the trigger notification from the BLTouch, and I have no idea what could be the issue.

Attaching a screenshot of the M43 S command result:

Screen Shot 2019-05-08 at 6 49 54 PM

Printer:

Any help will be greatly appreciated!

Thanks, M.

MaxBeliar commented 5 years ago

I've faced the same problem. So, I am also need help.

dleask commented 5 years ago

I had the same problem. It meant the servo connection was OK but the black and white sensor wires were reversed.

Regards

Dave

On 13 May 2019, at 18:23, Maksim Atbakanau notifications@github.com wrote:

I've faced the same problem. So, I am also need help.

— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or mute the thread.

MaxBeliar commented 5 years ago

Unfortunately, this doesn't work for me.

dleask commented 5 years ago

Then I would suggest you may have a connectivity problem as the sensor pins on the motherboard are not detecting a closed signal when the probe pin retracts.

Regards

Dave

On 13 May 2019, at 18:47, Maksim Atbakanau notifications@github.com wrote:

I had the same problem. It meant the servo connection was OK but the black and white sensor wires were reversed. Regards Dave … On 13 May 2019, at 18:23, Maksim Atbakanau @.***> wrote: I've faced the same problem. So, I am also need help. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or mute the thread.

Unfortunately, this doesn't work for me.

— You are receiving this because you commented. Reply to this email directly, view it on GitHub, or mute the thread.

MNieddu91 commented 5 years ago

Problem ist false or defective wiring of Z Endstops (white and black wire)

mLupine commented 5 years ago

I managed to resolve the issue, and the issue was - indeed - wrong wiring. My BLTouch unit had cables connected to the plug in a wrong color order – I just had to reverse the white and black wires and got everything to work. Thanks for the help!