Bug neptu4ne 4 max shaper calibrate

[koley1969-web]

Hi everyone,

I'm reaching out for help with a persistent configuration issue on my Elegoo Neptune 4 Max after a clean installation.

I have fixed all motor and homing instability problems, but I now need to eliminate layer shifting and ringing at high speeds.

The Problem: Cannot Enable Input Shaping

1. Goal: I want to enable Input Shaping (IS) using the built-in ADXL345 accelerometer (the chip on the toolhead).
2. Action: When I uncomment the necessary sections ([mcu rpi], [adxl345], and [resonance_tester]) in my printer.cfg, the system shuts down immediately with a fatal configuration error.
3. Fatal Error Message: mcu 'rpi': Unable to connect or Unknown pin chip name 'rpi'.

Could someone please advise on the correct, valid way to define the pins for the built-in toolhead ADXL345 on the N4 Max, so I can successfully initialize the Input Shaping module?**

Thank you for the help!

[Marlboro62]

hello , printer.cfg:

Detected Issues

Syntax: = vs :
In Klipper, you should always use : for options, not =.
So this is incorrect:

z_offset = 0.0


Correct it to:

z_offset: 0.0


Z-stepper endstop_pin
The error “Unknown pin chip name 'probe'” likely comes from:

endstop_pin:probe:z_virtual_endstop


If you are using a physical probe (BLTouch, inductive, capacitive, etc.), the correct syntax for Klipper is:

endstop_pin: probe:z_virtual_endstop

[MikaTher]

bonjour, j'ai exactement le meme problème sur ma Neptune 4 max. As tu réussi a le résoudre?