M566 P1 vs pressure advance

[AlexTh]

Hello. M566 P1 (jerk policy 1) does not work together with M572 D0 S0.11 (pressure advance). If pressure advance is turned off, then it prints normally.

Board: fly_e3_pro (STMWiFi)
Firmware: RepRapFirmware for STM32F4 based Boards 3.4.0beta6_1 (2021-11-06)
Duet WiFi Server Version: 1.26-08S-D

[Phaedrux]

How does it not work? Can you be more specific?

[AlexTh]

@phaedrux Re-extrusion during the printing of the filling at the "Line" in Cura. Underextrusion after retraction and transition to printing the next model on the table.

[Phaedrux]

Are you also using input shaping?

Can you post a photo of what you're seeing?

[AlexTh]

@phaedrux The printer is currently in operation. I'll take a photo tomorrow. I didn't understand how to insert photos here.

[AlexTh]

@phaedrux Input shaping is not used.

[AlexTh]

@phaedrux I understood how to insert photos. I didn't see on the phone that the chat functionality doesn't fit on the screen

[AlexTh]

@phaedrux
M566 P1 vs M572 D0 S0.11

[AlexTh]

@phaedrux
M566 P0 vs M572 D0 S0.11

[AlexTh]

@phaedrux

M566 P1 vs M572 D0 S0

[AlexTh]

@alexth

M566 P1 vs M572 D0 S0.11 - Incorrect printing occurs at these values.
This is visible after moving to a new part.

[T3P3Tony]

@alexth is this behaviour different in RRF3.3?

[AlexTh]

@t3p3tony I am a new RRF user. I did not install other versions.

[T3P3Tony]

@alexth the board you had probably had an older version initially. Maybe @jay_s_uk can advise as this is a mellow board not a duet.

[PCR]

@alexth you have to tune PA with the specific jerk settings and policy.

[AlexTh]

@pcr I can't find the PA value, because the perimeter prints well, and only the beginning of the line with high underextrusion.

[PCR]

@alexth which printer? A PA value of 0,1 is quite high

[PCR]

@pcr for a direct drive

[AlexTh]

@PCR
Flying Bear 5
Long direct
~10 cm

[PCR]

@alexth start with S0 and increase?