Z in mid air at start..Fails to lower

General Discussion
1

Basic Information:

Ender 3 Pro
4.2.2
RPi3b

klippy.zip (154.0 KB)

Describe your issue:

As a Klipper newbie I really feel bad about posting this after reading so much for so long I really can not identify why I’m so thick and failing to get my nozzle close to the bed using the correct z_offset. Ive watched and tried so many YT clips along with following Klippers own documentation on probe_calibrate & calibrating probe z offset all to no avail. When ever I start a print the nozzle always stays around 3 to 4mm away from the bed.
Id really really appreciate some hand holding & baby talk here please..

2

Have you already done this: Probe calibration - Klipper documentation

And you may delete line 8 here:

[gcode_macro START_PRINT]
gcode = 
	{% set BED_TEMP = params.BED_TEMP|default(80)|float %}
	{% set EXTRUDER_TEMP = params.EXTRUDER_TEMP|default(245)|float %}
	M140 S{BED_TEMP}
	G90
	G28
	SET_GCODE_OFFSET Z=1.0
	M190 S{BED_TEMP}
	M109 S{EXTRUDER_TEMP}
3

I am assuming you mean adjust line 8 ! If so yes. Also yes to the Calibrating probe Z offset in the Klipper docs..

May delete it .. Ah OK will try that

4

No.
If you done the calibration properly, the actual offset is stored in the printer.cfg. There is no need to change that.

5

The offset I require is stored at the bottom of the printer.cfg file. So may I ask should I comment out that line 8 ? thanks

6

Well that’s interesting. I commented out line 8 and all seems good. You nailed it thank you for your help..

1 Like
7

Well I spoke too soon. Worked once, shut down had lunch and still the same issue next time I’ve switched it on FFS!!

8

Please attach a recent klippy.log to your next post.

1 Like
9

Thank you.. Me trying to just comment out for some reason did not work but deleting as you suggested has. Thank you

1 Like