Klipper Start G- Code woes

General Discussion
1

Basic Information:

Printer Model: Ender 5 Pro
MCU / Printerboard: SKR 1.4 turbo
Host / SBC Raspberry Pin3B
klippy.log
klippy.log (156.1 KB)

Describe your issue:

I’m having trouble getting the Start G-code correct. As of now the extruder keeps smashing into the bed.

I’ve performed the Z offset as per klipper instructions and saved this. So, I’m not sure what’s going on? Any advice on this would be most welcome

IMG_0222
IMG_02222048×2732 378 KB

2

During the G28 or the BED_MESH_CALIBRATE?

Do you have a genuine BLtouch or a clone?

3

Hi, it’s a genuine BL touch

4

So, why do you use pin_up_reports_not_triggered that is recommended for clones?

https://www.klipper3d.org/BLTouch.html#bl-touch-clones

1 Like
5

I suppose I didn’t know, but it has functioned correctly in the past.
This is what’s happening
When you start a print

  1. Probes centre of bed
  2. Heats bed to 60
  3. Does a bed mesh
  4. Extrude moves to rest pos.
  5. Extruded heats 200
  6. Draws 2 lines
  7. Then right after drawing the lines it lift the z axis up into the extruder. (Where I have to switch off)

This is what’s in the g code of the slicer (super slicer)

IMG_0027
IMG_00273024×4032 2.23 MB

6 
  1. Probes centre of bed

G28 (actually, it’s homing)

  1. Heats bed to 60

M190 S60

  1. Does a bed mesh

BED_MESH_CALIBRATE PROFILE=mesh1 METHOD=automatic

  1. Extrude moves to rest pos.

G1 X10 Y15 Z30 F4000.0

  1. Extruded heats 200

M109 S200

  1. Draws 2 lines

G1 Z2.0 F3000
G1 X10.1 Y20 Z0.28 F5000.0
G1 X10.1 Y150.0 Z0.28 F1500.0 E15
G1 X10.4 Y150.0 Z0.28 F5000.0
G1 X10.4 Y20 Z0.28 F1500.0 E30

  1. Then right after drawing the lines it lift the z axis up into the extruder. (Where I have to switch off)

And here ends the START_PRINT macro. So that macro is OK.

Have you checked with a different model?

You may can upload a (zipped) gcode file that makes trouble.

There is maybe some wrong settings in the slicer.

7

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