Problem on prusa i3 pro b

[jauffrey]

hello

I have a problem with the gt2560, Sunday i finish to build the printer and now i'm calibrate the printer yesterday the
printer functioned well ybut today the limit switch Y doesn't work is supplying power and when it is activate this power cut but the motor continue to run as if the limit witch not activate


What is the problem and how can i fix


Best regards Jauffrey

[William]

You'd better check if the Y endstop(the two ends) has no a good connection to the board and the connector.

If it still exists after that,you can swap Y endstop with X/Z endstop to check if it is broken...

[jauffrey]

Hello,

I try this is not the limit switch is from the board the orther limit switch work on the board just the min y doesn't work

Best regards Jauffrey

[William]

Hello Jauffrey,
What exactly do you mean?
The Y endstop doesn't work or the Y_min slot doesn't work?

[jauffrey]

The y min slot on the board doesn't work, the endstop work perfectly

Jauffrey

[William]

You can try swapping the pins of Y_min with the pins of Y_max,refer to this:
http://www.geeetech.com/forum/viewtopic ... 20&t=18020

[jauffrey]

i try to swap the Y MIN with the Y max , the card reconize the endstop but the Y motor still not stop when the the Y endstop is hit, i try swap the pololu a4988 with an orther and still do the same error and the endstop is good

i thinks the problem came from the GT2560 board

Jauffrey

[William]

I mean you can exchange the pins setting about Y_min and Y_max slots in the firmware:
http://www.geeetech.com/forum/viewtopic ... 20&t=18020
Upload the firmware modified for you and plug Y endstop to Y_max slot on the board to see how it works:

Marlin-PI3_Pro_B.zip

(299.31 KiB) Downloaded 382 times

[jauffrey]

Yes i did this but still do the same error

Jauffrey

[William]

That's so weird...
The Y_max slot was broken too?
You can try swapping the pin of Y_min with Z_max/X_max in the firmware like the post i attach to you:
http://www.geeetech.com/forum/viewtopic ... 20&t=18020
And see if there is a difference.