Issues printing with supports - what should I do?

[monomonster 0]

I have bought my UM3 used and had major issues with print-head wobble. The rods + bushings were replaced with OEM parts and now that seems to be much better.

Having that said, I am stilling having issues printing a part that has support on the underside. Please see the two attached photos. The silver filament is original UM printed on my UM3 and the orange part was printed on an inexpensive Chinese machine. It is easy to see in the 2nd picture that the filament is loose on the supports and does not order neatly.

 

Automatic self-leveling completes normally and I could not see anything else wrong mechanically. Any suggestions what is going on here?

[SandervG 1,349]

Hello, do you use a default printing profile or have you made modifications? There is a feature in Cura called Z support distance top/bottom which may be impacting you. Have you also ran all the calibrations on the machine? 

Does it have original print cores?