Dual Motor Y-Axis homing problem
Hello Repetier-Forum
We have build a printer with a two motor y-axis and two endstops. I have selected the Ymin endstop to the Y1 motor and the Ymax endstop to the Y2 motor. When i start the homing command both motors home in the right way, but then they just start driving endless in the Y+ direction. We couldn`t find a solution jet. Can you help us?
https://www.youtube.com/watch?v=a43y68MpCZw&feature=youtu.be This is a Video of the Homing procedure.
Thanks for your help.
We have build a printer with a two motor y-axis and two endstops. I have selected the Ymin endstop to the Y1 motor and the Ymax endstop to the Y2 motor. When i start the homing command both motors home in the right way, but then they just start driving endless in the Y+ direction. We couldn`t find a solution jet. Can you help us?
https://www.youtube.com/watch?v=a43y68MpCZw&feature=youtu.be This is a Video of the Homing procedure.
Thanks for your help.
Comments
ENDSTOP_Y_BACK_ON_HOME
sets how far away from end stop it should move, so check what you have there. Normally you have 1-2mm so it untriggers the end stop, but not more.
I also think homing is working the rhigt way.
Thanks for your help.
Do you have enough free memory reported in log when you connect to firmware? Sometimes low memory can cause very strange effects. 1kb free ram should be enough.
I also downloaded the firmware again but it also did not change anything.
Run
G28 Y0
M400
M119
as a script so all gets send at once.(right click in manual control to edit them)
M119 will report end stops after homing is finished. So if you see it never because you reseted the printer it is part of homing, if you see it after the move to front finishes it is something happening later.
Depending on your homing order it is possible that it moves after homing to a home position. These are the one with preheat. Maybe that is the case here. These settings are not shown in screenshot.
I think the error happens in the homing command. I tried your script and i never saw the M119 command.
Where can i find the settings to the preheat home position?
After i changed some settings in eeprom the problem dissapeared. I don't know what the ptoblem caused. But now it works.
Thanks for your fast responds and your help.