Ugly bad prints

[Pietertje88 0]

Hi Guys

 

Since a few weeks our Ultimaker is making some really bad prints.

All the prints look rough and are quite "hairy".

I already tried:

- Hot/cold atomic pull

- Updated firmware and Cura

- Cleaned nozzles on the outside

- XY-calibration

 

I've attached some pictures of prints I tried to make, but they just look awfull.

Anyone got an idea what could be causing this problem?

[gr5 2,192]

White filaments string more than most so keep that in mind.  I have to print white filaments much cooler to avoid stringing.  Try lowering the temp as it's printing and keep notes.

 

If you want really good quality (eliminating the line down the rear foot) then also lower the speed to 30mm/sec max. ALL the speeds - especially infill speeds.  make sure the outer layer (shell) is the same speed because speed changes can cause tiny imperfections.