Ender 3 V3 KE printing mistakes

Hi guys,
I am really new with 3D printers.
I attach here a video of what often happens during the printing process.
What’s wrong? What can I do to fix the problem?
Thanks a lot.
Francesco

What infill pattern are you using, grid will do that try gyroid or rectilinear. Flowrate is probably the next thing to adjust. Run the calibration test or simply reduce flowrate by 10-15%. Not sure what the clonk noise was, was it the printhead hitting something?

Thank you Bonfireman. I don’t know where the clonk noise comes from. The printhead is not hitting anything. I do some test with your suggestions and I’ll be back soon!

Hi Bonfireman sorry for my late reply.
I did two tests with Cura software.
For the first test I have set gyroid infill pattern and reduced flowrate by 10%. After about 30 minutes one corner of the object has lifted from the base and curved upwards. I tried one more time installing the Cura PlugIn "SpoonAntiWarping " and setting lightning infill, reduced flowrate by 10%, reduced nozzle fan by 10%. The same problem occured. I attach a couple of pictures about the second test.


Thanks for your patience.
Francesco

Make sure that bed is super clean and I would add a brim. Perhaps not immediately useful but the is a Biqu CryoGlacier build plate that is quite excellent.