bad printing Layer Shifting or Misalignment

This is second print and it is the same don't know what happend but printer start to print a fev mm to left. (Layer Shifting or Misalignment)
On second print it start to print after a while fev mm to back of Y.
Any idead why this is happening?
Belts are ok and tight, what else can be?
I have upgraded firwmare to bugfix 1.1.x



Edited 1 time(s). Last edit at 08/09/2018 09:02AM by Blisk.

Layer misalignment is generally caused by missed steps. There are a few common causes:

- Stepper driver adjusted too low
- Belt too loose on stepper gear.
- Extruder nozzle hitting the object while printing. (part lifting/curling)
- Interference in motion of the X or Y carriages.
- Attempting to print outside the physical X/Y limits (switch engaging)
- Error in gcode (uncommon)

Hope this info helps!

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-David

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Also anything jamming the movement. Stray end of the belt or a wire.
Also the drive gear on the motor slipping.

I have changed stepper drivers now it works OK