XY shifting problem

[old man emu]

XY shifts are usually simply due to loose linear motion parts. It is hard to see from the pictures if the machine uses belts or screw rods. If it is using belts, tighten them as much as you can. The next step is to do a movement calibration test. Have your extruder make a spot on a piece of paper taped to the print bed, then move the extruder 100 mm using your interface. Measure how far the extruder actually moved. If you can get into your firmware you can alter the number of steps the motor uses to move a known distance.

Another point is that when buying a printer, be wary of ads written in Engrish.

Old Man Emu

[evilmaul]

thanks for your answer sir!
The printer uses belts and they seem to be tight enough to me. The only way that I could see the problem go away is to reduce acceleration values (and print speed as well) by A LOT...too much as I would never want to print that slow
I tried to do what you said to make 2 marks on a piece of paper but I have to say that the distance traveled (I tried only Y axis) was spot on when I measured it. So yeah I must be something else I guess :/ I will keep on scratching my head

[old man emu]

thanks for your answer sir!

Paleeese!

You don't call an Old Man Emu "Sir", unless you have heard that I have been knighted by Queen Elizabeth in the New Year's Honours.

OME