Home requirement for Input Shaping

General Discussion
1

Basic Information:

Printer Model: Prusa i3MK3S+
MCU / Printerboard: Einsy Rambo
Host / SBC: RPi 5
klippy.log

Describe your issue:

After mounting a KUSBA accelerometer between the extruder and a steel sheet using a 3D printed mount, I tried to perform a SHAPER_CALIBRATE AXIS=X. However, Klipper required an execution of Home before that. This resulted in collison since the gap between the nozzle and the steel sheet is already small. Please advice on what to do.

Why Home is required before execution of an input shaping command? Can we modify the Home position (higher Z value)? Will the resulting Input Shaping results be less accurate?

2

Construct your hardware that way, that no collision can happen.

Without homing, Klipper does not know the positions of X and Y.

1 Like
3

Thank you.

If I perform a homing. Then, from the dashboard increases the Z. Will that work? Will the Input Shaping result still be accurate?