Print Quality Issue
I am having a problem with print quality on my Core One. It was bought pre-assembled. All calibrations have been run and I have done the Input Shaper and Phase Stepping calibrations. The belt tensions are around 95 Hz. I have tightened the screws including the screws holding the bed and associated hardware. The print was done with Polymaker PLA matte. The image is a close up of the front part of a benchy.
RE:
Is that print from your own slice of the included stl or from the included gcode?
I would rate that print as good enough for the first month.
Every user builds their printer slightly differently and pre-built models are shaken up in transit so during the first few weeks of use the printer will run-in and settle its parts together; then you will have to go over the basic maintenance checks, lubricate and recalibrate. Even if you got everything dialled in perfectly today, it would all need re-doing.
Better to settle, temporarily, for a basic working printer and get some useful printing done, make your early mistakes, establish a routine and generally get used to the process. Then when you do your one month service you can take extra care knowing the new settings on your now stable printer are likely to last for several months.
Cheerio,
RE: Print Quality Issue
The print was sliced on Prusaslicer using the default Polymaker PLA settings. I have done around 400 hours of printing. It has been recently lubricated and calibrated including Input Shaper Phase Stepping calibrations and ther belts tensioned using the phone app. The machine was factory built. Next week I plan on updating the firmware to 6.4.0 and rerunning everything. The prints have improved, but the benchy artifacts remain. The artifacts are exactly the same on successive benchy prints.
RE:
I'd reset the Input Shaper, and verify you sliced the Benchy at 0.15. To be honest, it looks like the belts are trying to jump off the pulleys when you hit that bow curve. You may want to verify your reassembly after taking it apart to lube the bearings. It's easy to get one of them upside down and put everything back together ... it still works, just has pretty obvious quality issues. As for belt tension, try using the Prusa belt tension tool (printable). Simple, easy, and just works.
https://www.printables.com/model/46639-tension-meter-for-the-gt2-belts-of-i3-mk3s-or-prus
You also might want to try using the factory Benchy bgcode that comes with the printer. Even though it's sliced for Prusa filament - most any PLA will work well enough. That will rule out overt slicing errors.