These past few weeks I have been tweaking and modifying a locally sold 3D printer. I have managed to remove the z ribbing but random z artifacts still persist. What I find particularly odd is that the print becomes really smooth when it prints the chimney part of the Benchy torture-test (you can get it herehttp://www.3dbenchy.com/about/).
Here is how it looks like. Notice the chimney being REALLY SMOOTH
Thinking that this could have been due to some weird accident, I printed it again. Both had smooth chimneys but everything else was rough.
I had a thought that z artifacts become a lot more pronounced when bigger objects are printed. I tested this be printing a hollow cylindrical column, a big irregular shape, and a medium sized cylindrical column.
Findings: The z artifacts on the small one was practically gone while the big one had deep z artifacts.
I am wondering why?? Has this happened to you? It is clear that the printer has the possibility of printing really well. The only hypothesis I have why the other parts are ugly is that this maybe a software issue on Cura 15.04.
Any thoughts about how to solve or what is causing this will be much appreciated.
Thank you in advance! Thank you for reading