We workplace has a TAZ6 for general use, and it apparently prints OK for most people, but I’ve been getting blobs on my prints.
I observed the printer printing a blobby print and the printhead would pause for a second and then keep moving. Extrusion continued during the pause and that would lead to a blob. In fact, the print looks as if the material that was supposed to be spread along a layer of the print got stuck together into the blob and a gap was left where that material was supposed to go. Another observation is that the bottom part of the print, which has a very shallow curve, is totally blob-free. I’ve had this blob problem with various different tweaks of this model. I also saw another person who printed little trophies suffer from the same problem. I tried changing the circular parts at the top to hexagons and the blobs decreased, but did not entirely go away.
Since it seems like this problem has to do with the pattern of print head movement it seems like it’s a control problem or a problem with my model rather than a problem with the filament or the environment, or other types of settings. But the particular print below was done using Cura, and the settings were all default except that I changed the support percentage to 10% and turned on the raft.
Does anybody have any thoughts? My model is in openscad, and I could post that or I could post the stl here if appropriate.