Originally Posted by
Labmaster
Welcome to the club.
I guess every one of us with a cheap shensui 50w has this problem, some more some less.
The problem is the whole mechanical y axis.
The linear bearings do not work as smooth as they should and this is mainly caused by very bad manufactoring of some base components.
In my case the black steel frame where the linear rails are mounted on are not in one flat plane, togehter with the problem that both y axis rails are not fully parallel this causes a very bad and rough movement that gets oscillated by not rigit enough y axs belts.
This is simply bad build quality and on some points bad engineering, but to be honest what would you expect for such a price.
best regards,
Walter