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endstop y axis

Posted by Jagtech 
endstop y axis
September 17, 2019 09:48AM
I have been battling a problem with this printer and now I discovered that the y end stop is triggered all the time even when it is unplugged from the board a mks gen l board does that mean a new board is in order to fix?
VDX
Re: endstop y axis
September 17, 2019 10:06AM
... maybe only the pins (or signal level) wrong set in firmware?


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Re: endstop y axis
September 17, 2019 11:45AM
Hello;

I had a similar problem however inverted my problem it was always open.

I found that the circuit trace was not under the silkscreen mask.



I bring this up because you could have a shorted trace or a solder ball shorting out the two traces. It could be that the end-stop connector has too much solder shorting the pins.
It can be deturmined with a simple visual inspection or a continuity test across the leads.

Looking at your previous post
//#define ENDSTOPPULLUP_XMAX
//#define ENDSTOPPULLUP_YMAX
//#define ENDSTOPPULLUP_ZMAX
//#define ENDSTOPPULLUP_XMIN
#define ENDSTOPPULLUP_YMIN
//#define ENDSTOPPULLUP_ZMIN
//#define ENDSTOPPULLUP_ZMIN_PROBE
#endif

// Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
#define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
#define Z_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define X_MAX_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
#define Y_MAX_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Z_MAX_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
#define Z_MIN_PROBE_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.

I question Your Setting on the End-Stops, could you post more information about this.

Edited 4 time(s). Last edit at 09/17/2019 11:53AM by Roberts_Clif.


Electronics Technician / Computer Programmer
Re: endstop y axis
September 17, 2019 12:25PM
A unplugged endstop is normally setup to be triggered on most printers. Its a safety feature so you know when an endstop is unplugged.

Move the working X endstop cable into the Y endstop plug.

send the printer a M119, does it now say Y its not triggered? If it does your real Y endstop or its cable is broken.
If its still triggered all the time Its probably hardware, a short like above or a dead IO pin..
I am Presuming your using the correct motherboard setting in your configuration.h so the correct IO pin is being looked at,
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