Y Axis Not Homing

I have just completed my Folger Prusa i3 build and I am in the process of setting the bed level and homing the axis.

I am using pronterface and when I click home for X and Z it works fine and stops once it hits and activates my end stops. However With the Y axis, it just keeps going long after hitting the end stop.

Using Pronterface the following happens when hitting the buttons.

- X+ moves the X Axis to the right (Looking at the printer form the front - Towards the X Axis Stepper)
- Y- Brings the plate towards me and towards my end stop
- Z+ Moves the Z Axis Up.

I have the below settings in my config file.

#define INVERT_X_DIR false // for Mendel set to false, for Orca set to true
#define INVERT_Y_DIR false // for Mendel set to true, for Orca set to false
#define INVERT_Z_DIR true // for Mendel set to false, for Orca set to true
#define INVERT_E0_DIR false // for direct drive extruder v9 set to true, for geared extruder set to false
#define INVERT_E1_DIR false // for direct drive extruder v9 set to true, for geared extruder set to false
#define INVERT_E2_DIR false // for direct drive extruder v9 set to true, for geared extruder set to false

// ENDSTOP SETTINGS:
// Sets direction of endstops when homing; 1=MAX, -1=MIN
#define X_HOME_DIR -1
#define Y_HOME_DIR -1
#define Z_HOME_DIR -1

I have been trying various different combinations and all have failed and I would like some expereinced advice before i do soem damage.

Thanks in advance.

Rhys

Make sure you wire your endstop to Ymin on your controller board

Quote
pierrehavelaar
Make sure you wire your endstop to Ymin on your controller board

THanks for the response. I have checked this and it is defiantely wired to RAMPS Y min correctly.

When I send a M119 to the Board I get this response. It thinks my Y-min is always triggered. ANy ideas?

Reporting endstop status
x_min: open
x_max: open
y_min: TRIGGERED
y_max: open
z_min: open
z_max: open

I just did some testing and if I plug another end stop into the Y Min on the RAMPS board I can press and trigger it on M119. However using the Y Endstop pressing it does nothing.

It seems to be a issue with the actual switch or cabling. Any suggestions on how to troubleshoot this? Can I just use any limit switch and wire it up to the board?

Does the status change to open when you press the switch? If so, you could also change the logic in the firmware to deal with the switch. Of course you can use any switch you like.

Quote
parksie

- X+ moves the X Axis to the right (Looking at the printer form the front - Towards the X Axis Stepper)
- Y- Brings the plate towards me and towards my end stop
- Z+ Moves the Z Axis Up.

// ENDSTOP SETTINGS:
// Sets direction of endstops when homing; 1=MAX, -1=MIN
#define X_HOME_DIR -1
#define Y_HOME_DIR -1
#define Z_HOME_DIR -1

I have been trying various different combinations and all have failed and I would like some expereinced advice before i do soem damage.

Thanks in advance.

Rhys

Y+ should move the bed toward you. (it does on both my Prusa i3's)
This will make the Y endstop in the front a MAX endstop

From your M119 it looks like the X and Z are wired NO, while the Y is wired NC

Steve

Edited 1 time(s). Last edit at 12/18/2014 02:23PM by SteveRoy.

---

My updated Instructable on our Prusa i3 Build
[www.instructables.com]