How to diagnose print settings for improving quality? (also: any ultimaker S5 profiles out there?)

[eddieparker 4]

I have an Ultimaker S5 that I haven't altered past the factory settings, and I tried to print a mandalorian helmet.  There's a lot of stringing and visible segmentation lines that someone showed me shouldn't be there (they printed on an Ender and got a much cleaner print).  I'd love to know how to tune my printer but I can't find any good step-by-step resources.  Does such a thing exist?  Or are there any settings I can import to get a head start?  I'm printing in pet-g with polymaker breakaway support chiefly, although eventually I want to venture to other materials.

 

[eddieparker 4]

I found a test piece on thingiverse (https://www.thingiverse.com/thing:2975429) with a step-by-step instruction guide.  I'm going to document my journey here in case other people find it useful (or if it helps others help me diagnose. :D).

 

Pictures below [1], but based on what I read in the guide ( https://3dnation504795197.wordpress.com/guide/ ) I'm going to try a few things for:

 

- Over extrusion (I see visible horizontal lines everywhere, not as bad as in their photos, but it sounds on par)

  - Not sure if I can tune this for an Ultimaker; have to do some digging.  I know on repraps it's easier to fiddle with EEPROM, not sure if I even can without voiding a warranty or something on my Ultimaker.

 

- Stringing

  - Gotta fiddle with retraction settings I'm guessing?

 

- Will print a temperature tower

 

I'll let you know how it goes.  Opinions/feedback welcome.

 

[1]