Layer Shifting - Tronxy XY-2 Problem

Hi guys,

can anyone help me with this issue? just now i assembled this printer but the problem its coming like this:


Layer Shifting
[b.top4top.net]

no idea what that is meant to look like...

Have you set the VREF on your stepper drivers to match your stepper motors?

i just assembled the printer and i run but all the models like this.

my stl file is an apple like the below:



apple

I can not tell in which Axis of the Model is shifting on,

Though I would guess that the concentric nuts are over tightened.
The XY Axis should move freely with a light push if there is too much pressure on the Belts or rollers with concentric nuts this can cause layer shifting.
Factory bearing are packed in some cases with a thick grease I have found that this packing grease should be cleaned and silicone or penetrating oil should be used.

Great Bearing Cleaning video
[www.youtube.com]

My bearing were not as bad though work much better after cleaning and re-lubing.

I tried a white grease an had more problems than the original packing grease.

Edited 3 time(s). Last edit at 04/26/2019 10:58AM by Roberts_Clif.

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Computer Programmer / Electronics Technician

Could you measure the printed and model height, do they match? It looks as though the z axis missed steps or the driver overheated, binding etc.

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Kind regards
Imqqmi

NFAN CoreXY printer:
[reprap.org]

Hi,

its all matching i dont know whats the problem