As per the title, I'm having some issues with a print that I've been trying to do for weeks now.
I'm using an Ultimaker 3+ and printing with Ultimaker ABS. I've got the latest firmware and Cura version.
The first few prints I did were working fine but it seems to have gotten progressively worse. The biggest issue seems to be loads of blobby parts to the outer wall of the print. The infill also come out really patchy and often doesn't print at all. Finally, the supports seem to lose adhesion to the main part of the model and detach mid-print.
I've tried cleaning the print core, autolevelling and have recalibrated the xy offset. Nothing seems to make a difference.
I'm getting the same result no matter whether I print with 0.04mm, 0.1mm or 0.15mm layer height. I'm generally printing at 230 degrees people to head and 80 degree build plate. My print speed varies from 45-60mm/s depending on layer height.
I'm a bit new to all this and I'm at a bit of a loss. The printer was performing great but has just gotten worse and I don't know why. At some stage I updated the firmware and Cura software and things seem to have gotten worse after that, but that could just be my imagination.
Here's a photo of the bad infill:
https://www.dropbox.com/s/4pr9r7fbuw01s6w/IMG_6789_zpsqlgxulgt.JPG?dl=0
The inner most circle is supposed to have 20% infill.
Here is the blobby walls:
https://www.dropbox.com/s/7am6ksfp1998v0i/IMG_6791_zpscsjxro7x.JPG?dl=0
Some of the stringy plastic is from printing collapsed supports, but it's the blobs on the outer wall that I can't live with.
Any advice to solve this would be greatly appreciated. Thanks in advance.