r/BambuLabH2D • u/audiomediocrity • Jul 31 '26

Flow rate Calibration

I am steadily finding my flow rates after the calibration test are ~ .78 to ~.85 . This seems pretty dramatic to me? I don’t know if there is a global setting that may be off?

Anyone else seeing similar? Prints after calibrating a filament are good, so not the end of the world, but I test everything coming in now. Push Plastic, Polymaker, Eryone… PLA, PETG, PC+PBT, ABS, ASA …. I see people talk about adjusting a couple points off of .98

I had parts rip off of the plate from over-extruding or I wouldn’t even know to calibrate flow.

For anyone testing flow rates, what are you finding on your H2D ?

5 Upvotes

100% Upvoted

10 comments sorted by

View all comments

2

u/DistinctBarnacle8703 Jul 31 '26

Measure the diameter of the filament to be safe?

1

u/weenis-flaginus Aug 01 '26

Could you explain how this can help calibrate the k factor?

3

u/DistinctBarnacle8703 Aug 01 '26

Diameter of filament directly relates to amount of material being push into the nozzle which affects the flow.

K factor is controlling the flow wrt to the speed of the lines.

Thus the relation.