Why once in awhile, Klipper gives "Move out of range" error?

General Discussion
1

Basic Information:

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

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Describe your issue:

I recall that few months ago I had this “Move out of range” issue. Since then, it has happened 2-3 times again. For example, I had a print job which lasted 5 hours. It completed this morning without issue. When I tried to print again, the job was cancelled automatically. In the Console, it showed “Move out of range: 71.435 132.535 220.310 [55158.333]”.

What is the reason for Klipper to keep doing this to me and how to prevent this from happening again?

klippy_move_out_of_range.zip (1.4 MB)

2

The model appears to be too high:

[stepper_z]
step_pin = PC2
dir_pin = !PL2
enable_pin = !PA5
microsteps = 16
rotation_distance = 8
endstop_pin = probe:z_virtual_endstop
position_max = 215   #<==============
position_min = -2
homing_speed = 13.333

Move out of range: 71.435 132.535 220.310 [55158.333]
                                  ^^^^^^^1
3

Maybe you should set up your slicer properly with the printers dimensions/limits to avoid that already before printing.

1 Like
4

Thanks. What value do you recommend to change to? Why there was no such problem the past few weeks but all of a sudden, this problem is happeing again? I think the last time this happened, it was about the extruder moving too much to the left.

5

You shouldn’t need to change your Klipper bounds since those look pretty accurate to the MK3S+ (if you change it the printer physically can’t move much further). In your slicer’s printer settings, I would recommend ensuring your maximum Z-height is no more than 215mm to match Klipper’s config.

Note that your print end macro/slicer end G-Code may not respect this maximum height, so you’ll have to inspect that too to make sure it’s not trying to move the extruder too high.