P1S Flow Rate Calibration

Hello,
I have now performed the flow rate calibration. Unfortunately I am not sure which is the best result. I have used original Bambu Lab PLA Basic. Below is a picture of my calibration. Which one do you think is the best?

I am currently leaning towards 0 or 5

You need to read this carefully, and then rely on your own feeling and impression.

Choose what you think is best, then do the second run. Then you can always repeat calibration again until you’re satisfied.

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Zero from what I can see.

As the wiki says:

You could be satisfied with zero.

You might do a little better by selecting five and running the second pass, which will compare smaller steps in flow between zero and five.

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In woodworking it’s common to use the palm to check the smoothness of a surface. I used my finger (even fingernail) to check the smoothest surface.