Could someone help me with x and y axis print issue?

whitepawn

Hi,

I have my printer about 3 months and was very happy about it.

It was printing test cube succesfully before but now i have problems on X and Y letters as seen on pictures.Cube corners and letter corners are not good as before. Here is my parameters:

Material:Generic ABS

Nozzle temp:230

Bed temp:100

Slicer:Cura

Firmware:Marlin 2.0.7.2

Board Creality 4.2.2 with TMC2208

Printer is stock except glass bed and cooling fan (laptop fan driven by buck converter actually) mod that i invented from scrap laptop fan by myself because original fan is broken. It was printing fine with these mods before. I have MDF cabin and sound insulation on my cabin.Cabin insulation is not finished yet.

Things i have tried so far:

Changed nozzle.

Leveling bed so many times.

Thigntened belts both X and Y axis.

Checked roller bearings.

Tried with different nozzle temps.

Could anyone tell me what is wrong?
![4_1606229985614_IMG_20201120_231901.jpg](Uploading 100%) ![3_1606229985614_IMG_20201120_231853.jpg](Uploading 100%) ![2_1606229985614_IMG_20201120_231849.jpg](Uploading 100%) ![1_1606229985614_IMG_20201120_231816.jpg](Uploading 100%) ![0_1606229985613_IMG_20201120_231811.jpg](Uploading 100%) ![alt text](image url)