I’m beginning to think that there is some real merit to this thread:
I print at 100% with Inland PLA and nGen, and get the same issues as before in my last thread - strings, oozing and lack of detail. On the second layer, the nozzle plows through the first layer because it is so thick.
I print with both at 85% flow rate and the strings and oozing almost disappear. I even started ramping up the temperature on the PLA and have discovered that the temperature might have been only a small part of my previous problems. The 15% reduction in the extrusion rate has made the single biggest improvement to my prints’ quality.
I’m beginning to wonder how much the environment that the printer is used in impacts the print quality. I’m almost sure ambient temperature may play a significant role in print quality, but to what extent? What other environmental factors may be at work here? I know that some cooking recipes must be altered to account for differences in air pressure at different altitudes. Could this also affect 3D printers as well? And if that is the case, why is it the extrusion rate and not the temperature change that improves the quality the most?
Settings I have changed from the stock nGen profile:
Layer Height: 0.2 (formerly 2.5)
Flow %: 85 (formerly 100)
Initial Layer Thickness: 0.4 (formerly 0.425)