The primary issue seems to be related to slop in the Z axis. The bearings themselves make a loud screeching noise when traveling further than about 30mm. There is also a loose feeling to the bed. You can easily move it several mm by hand. I have gone over the entire assembly and tightened every single screw to no avail. All belts seem to be nice and tight. I have done lots of web searching and have tried many settings in my slicer, Simplify3D, and nothing has resulted in a quality print. My $300 printer at home runs circles around this machine.
The print quality issues are zits, stringing, poor bed adhesion when running a large part, inconsistent layer widths, both under and over extrusion (in the same print!), and odd waves in the layers going up the Z axis. I have tried a wide range of settings but the best results have been near the Simplify3D defaults for the Flashforge Creator Pro.
This morning my boss announced that he "wants that printer out of here". I suppose my questions are, is there possibly some troubleshooting I may be missing? What does your return policy look like since the purchase was made four months ago? Is it possible to switch this machine out for an Ultimaker? We plan on 3D printing several parts for a low volume product (100ish annually) so I really need a machine I can rely on.
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