Very interesting problem today !  

Very interesting problem today !

Hello ,   I', working on a Mk3s printer , so I purchased this printer back in may , its the newest printer I have working in my shop and its been flawless ever since I assembled it , the filament sensor started getting buggy so I switched off and just manually fed the material into it ,   Fast foward to this last weekend , I didnt need to use it so I decided to see if I could fix the sensor problem , I found out all it needed was to be shimmed so now the sensor works perfectly .

I set it up to print a part for me today and got the new material in and the G code loaded up and started print ,    At first it didn't want to level , So I reset it and restarted the print this time it went right through the leveling process without a hitch and began building the model , I did notice that the print was about 25mm over to the right from center but it was printing just fine so I didnt worry about it ,    At just about 75% complete I hear the print crash and the extruder homming ,   Then it went all the way over to the right and started printing again where it left off .

I stopped the print and decided to reset and restart the print to see what it would do ??     Now the printer wont home itself , it tried to start the leveling procedure from where ever the extruder is sitting at ,,   I decided to recalibrate the printer , it seems like the whole X axis shifted to the right , If I try to move axis using the settings it will move right until it stops then you can hear it trying to force itself if you keep moving the axis , when you go left it stops right at center and wont go any further , I can manually move the extruder although difficult to the home position then go and move axis with the controls all the way back and forth but it still wont calibrate home ???

I have no idea where to go next ??     This just suddenly came up , I've never had anything like this happen with these printers before ?