Printer jump of its correct position

hello everybody, i am new to 3d printing but i got a big problem.
My printer jumps from position while printing. this causes for a big fault in my prints.
Any ideas what i can do to fix this

https://drive.google.com/file/d/0B3vumF4Al668SjY3clhuSXBqTkU/view?usp=sharing
this is the result

Like everybody else building this printer you have a missalignement issue. See k8xxx-3dprinters.crimed.be/w … ayer_Shift

thanks for the guide but here is my next problem that i cant find on the wiki. I removed the belts and released all pulleys and than it should move freely. but my nozzle is still extrenly stubborn and i need to use a lot of force (for the nozzle) while the wiki said it should move freely zith almost no resistance. should i use something like WD-40 to solve this or not?

Seems like a broken link in the wiki. Will try to fix it. (should be working now :slight_smile: )

The guide you need to follow is this one:

k8xxx-3dprinters.crimed.be/w … _Alignment

I follow the guide completely but it is off center now and i don’t know how

I guess it was just a bad G-code i tried something else and know it looks like it’s working (just started printing)

edit: nevermind it messed up a little bit later. It always failes on the Y-axis and when i try to move it with the menu it makes a loud noise like the beld are grinding ( but they aren’t) and jumps to a higher or lower position and continues the print like it is supposed to be there.

edit 2: I did some test and it’s not so random as i thought. My printhead jumps on the exact location. could something be bad with my g-codes?

https://drive.google.com/file/d/0B3vumF4Al668MnBhbjgtZkx3Nmc/view?usp=sharing this is what i mean that it jumps from location