[Stringy Prints]

I just posted a solution to this as a thread. I did a design of experiments to minimize stringing and maximize resolution.

Admittedly, it's for the brownronze ultimaker PLA.

 

http://imgur.com/a/5HG06#5

Try the following settings for PLA:

Layer Height: 0.06

Shell 0.8

Fill Density 80%

Print speed 150

print temp: 190

Retrac speed: 55

Distance:8

Travel speed 250bottom layer 50

infill 150

outershell 20

inner shell 20

cooling: 1s (yes I know, but it worked really well, you might be surprised.)

Enable cooling: minimum 30

 

[Ultimaker Original Cura Optimized BrownBronze PLA settings.]

I got tired of guessing. I did a 16 run design of experiments with the majority of single head extrusion Cura Settings. I used quick retractooze model from thingiverse as my my object of analysis (http://www.thingiverse.com/thing:22263/#files).

I used my own, relative, subjective 1-10 scale for stringing, resolution, and a combined aggregate score. I did my design in mini tab, then used it's analysis capabilities to create effect charts. This is the results of the study.

http://imgur.com/a/5HG06#0

The last print I did had the following settings for lowest stringing possible ad high resolution.

Layer Height: 0.06

Shell Thickness: 0.8

Fill Density: 80%

Print Speed: 150

Print Temp: 190C

Retrac Speed: 55

Distance: 8

Travel Speed: 250

Bottom Layer Speed: 50

Infill: 150

Outer Shell: 20

Inner Shell: 20

Fan: 1s

Cooling Enabled, minimum speed 20

The next step is to use regression on the main effects and optimize overall print speed and quality. Will update additional settings after further analysis. GF wants dinner.