Adjust tension on extruder wheels for printing very soft TPU?

Bambu Lab X1 Series
21

yes, I understand. thank you!

22

obrƔzek
obrĆ”zek2188Ɨ2917 1.06 MB

23

One more thing Iā€™d like to add. I use a Mac computer, and if you use the Softfever version of Bambu Studio and follow the instructions for flow calibration using the built-in calibration steps, you can use the following AppleScript to make it simple to perform the instructed calculations. If youā€™re not used to AppleScript on the Mac, just launch the Script Editor.app, paste the following code into an empty document window, press run and answer the prompts:

set FlowRatio_Old to text returned of (display dialog "Please enter current (old) flow rate:" default answer "0.98") as real
set ModifierValue to text returned of (display dialog "Please enter the Modifier value that you selected when you ran the test:" default answer "5") as real
set adjusted_FlowRatio to (FlowRatio_Old * (100 + ModifierValue) / 100)
display dialog "Your new Flow Ratio value:" & space & (adjusted_FlowRatio as text)
24

Nice that you did that, but itā€™s only a few seconds in a calculator app to determine new values.

1 Like
25

Fair enough. (I need the rest of this to post that reply, apparently)

26

Hello tmtymmotorsport,

can you please tell me with TPU (Shore) did you use on your picture.
I dry to print a TPU 60a on my P1S with 0,6 needle and i despair !

Hope to hear from you.

Regards
Chris

27

You quoted my reply, but I didnā€™t post that picture, so I canā€™t answer your question. However, I think trying to use a .6 nozzle with TPU on a Bambu Lab printer may pose some significant difficulties even for the most experienced users. Also, nearly all successful TPU prints that Iā€™m aware of have been using filaments rated at about 95A shore hardness. Iā€™ve used 85A Ninjaflex with some success, but only at fairly slow speeds.

28

Why would a 0.6mm pose difficulties? Nozzle pressures are lower than with a 0.4mm nozzle, which is your limiting factor with TPUā€™s, meaning itā€™s easier than a 0.4mm. Bigger nozzles make things easier with TPU, within reason.

29

Wawww Where did you find a transparent cover for your extruder!.. It should be originalā€¦ absolutely!..

1 Like