Wrong thickness of object part

[gshimansky 0]

Hello

 

I am trying to print this model from thingiverse https://www.thingiverse.com/thing:2837894

When I print the arms I notice that one side (right one on picture) of the arm is twice thinner than it should be. This is seen only on printed object, in Cura GUI everything is correct and both sides of the fork are of the same thickness.

 

 

Where is the problem? What settings could be used to fix it? I am using Cura 4.2.1, printing with ABS.

[Umo_Alex 4]

Can't judge from the picture, but did the right arm come off the bed a bit?

In that case you have an adhesion problem.

[gshimansky 0]

It could've been the case if I didn't get the same result 3 times in a row. I tried to change settings from 0.15mm to 0.2mm, Infill pattern, but that didn't change anything.

[johnse 31]

Are your gantry rods square? Others who have had uneven dimensions had slipped a tooth somewhere.

[gshimansky 0]

I am starting to suspect that something is wrong with my Y axis positioning, but it doesn't happen in all circumstances, just in some special cases like this one. I am also having problems with bottom layer not touching some of the walls, leaving gaps very noticeable with Concentric fill pattern and to a lesser extend with Lines filling pattern (on the image of the fork a gap in filling the top layer can be seen too). This also seems to be Y positioning related.

 

 

For some reason it all happens only with ABS filament. With PLA everything was just fine and I didn't have such problems, so I cannot figure out if it is something with my printer or ABS print settings.

 

I lubricated hotbed sliding bearing and it helped a little, I am planning to order and replace timing belts and print Y-belt tensioner.

[Umo_Alex 4]

If the problem only occurs with ABS and not with PLA, I'd think you have a settings problem, not a hardware problem.

(Trying to think along)